Prof. Dr.-Ing.

Rainer Helmig

Head
Institute for Modelling Hydraulic and Environmental Systems
Department of Hydromechanics and Modelling of Hydrosystems
Sabbatical
Rainer Helmig is on sabbatical from 1st April to 30th September 2019

Contact

+49 711 685-64741
+49 711 685-60430

Business card (VCF)

Pfaffenwaldring 61
70569 Stuttgart
Germany
Room: 1.015

Ausbreitungs- und Transportvorgänge in Strömungen Vorlesung Übung
Einführung in die Modellierung Vorlesung
Environmental Fluid Mechanics II Vorlesung
Fluidmechanik 1 Vorlesung Übung
Grundlagen zu Numerische Methoden der Fluidmechanik Vorlesung Übung
Mehrphasenmodellierung in porösen Medien Vorlesung Übung
Multiphase Modeling in Porous Media Vorlesung
Ringvorlesung SimTech Vorlesung
Simulationstechnik A Vorlesung

 Lebenslauf


Studium
Bauingenieur, Diplom 1986 Universität Hannover (Germany)
Promotion
February 1993 Universität Hannover (Germany)
Habilitation
November 1996 Universität Stuttgart (Germany)
since October 2000
Institute for Modelling Hydraulic and Environmental Systems, Universität Stuttgart

Member of the joint steering committee of the GEOTECHNOLOGIEN programme of the German Research Foundation and the Federal Ministry of Education and Research

Principal Investigator and member of the Board of Directors of SimTech - Cluster of Excellence

Associate Editor of the journal Water Resources Research externer LinkWater Resources Research, Member of the editorial boards of the journals Advances in Water Resources, Computational Geosciences, GEM - International Journal on Geomathematics;

Chairman of the Board of Trustees of the externer Link AQUA Foundation

Associate Editor of
- Journal of Porous Media (JPM)
- Special Topics and Reviews in Porous Media - An International Journal (STRPM)

publications

  1. article

    1. Koch, T., Schneider, M., Helmig, R., & Jenny, P. (2019). Modeling tissue perfusion in terms of 1d-3d embedded mixed-dimension coupled problems with distributed sources. ArXiv E-Prints, arXiv:1905.03346.
    2. Weishaupt, K., Joekar-Niasar, V., & Helmig, R. (2019). An efficient coupling of free flow and porous media flow using the pore-network modeling approach. Journal of Computational Physics: X, 1. https://doi.org/10.1016/j.jcpx.2019.100011
    3. Yang, G., Coltman, E., Weishaupt, K., Terzis, A., Helmig, R., & Weigand, B. (2019). On the Beavers-Joseph interface condition for non-parallel coupled channel flow over a porous structure at high Reynolds numbers. Transport in Porous Media. https://doi.org/10.1007/s11242-019-01255-5
    4. Yang, G., Vaikuntanathan, V., Terzis, A., Cheng, X., Weigand, B., & Helmig, R. (2019). Impact of a linear array of hydrophilic and superhydrophobic spheres on a deep water pool. Colloids and Interfaces. https://doi.org/10.3390/colloids3010029
    5. Köppl, T., Santin, G., Haasdonk, B., & Helmig, R. (2018). Numerical modelling of a peripheral arterial stenosis using dimensionally reduced models and machine learning techniques. International Journal for Numerical Methods in Biomedical Engineering. https://doi.org/10.1002/cnm.3095
    6. Gao, B., Davarzani, H., Helmig, R., & Smits, K. M. (2018). Experimental and numerical study of evaporation from wavy surfaces by coupling free flow and porous media flow. Water Resources Research. https://doi.org/10.1029/2018WR023423
    7. Becker, B., Guo, B., Bandilla, K., Celia, M. A., Flemisch, B., & Helmig, R. (2018). An adaptive multiphysics model coupling vertical equilibrium and full multidimensions for multiphase flow in porous media. Water Resources Research, 54. https://doi.org/10.1029/2017WR022303
    8. Koch, T., Heck, K., Schröder, N., Class, H., & Helmig, R. (2018). A new simulation framework for soil-root interaction, evaporation, root growth, and solute transport. Vadose Zone Journal. https://doi.org/10.2136/vzj2017.12.0210
    9. Schneider, M., Köppl, T., Helmig, R., Steinle, R., & Hilfer, R. (2018). Stable propagation of saturation overshoots for two-phase flow in porous media. Transport in Porous Media, 121(3). https://doi.org/10.1007/s11242-017-0977-y
    10. Praditia, T., Helmig, R., & Hajibeygi, H. (2018). Multiscale formulation for coupled flow-heat equations arising from single-phase flow in fractured geothermal reservoirs. Computational Geosciences. https://doi.org/10.1007/s10596-018-9754-4
    11. Köppl, T., Fedoseyev, M., & Helmig, R. (2018). Simulation of surge reduction systems using dimensionally reduced models. Journal of Hydraulic Engineering. https://doi.org/10.1061/(ASCE)HY.1943-7900.0001553
    12. Gläser, D., Flemisch, B., Helmig, R., & Class, H. (2018). A hybrid-dimensional discrete fracture model for non-isothermal two-phase flow in fractured porous media.
    13. Koch, T., Flemisch, B., Helmig, R., Obrist, D., & Wiest, R. (2018). A multi-scale sub-voxel perfusion model to estimate diffusive capillary wall conductivity in multiple sclerosis lesions from perfusion MRI data. BioRxiv Preprints. https://doi.org/10.1101/507103
    14. Vidotto, E., Koch, T., Köppl, T., Helmig, R., & Wohlmuth, B. I. (2018). Hybrid models for simulating blood flow in microvascular networks. Eprint ArXiv:1811.10373. Retrieved from https://arxiv.org/abs/1811.10373
    15. Schneider, M., Gläser, D., Flemisch, B., & Helmig, R. (2018). Comparison of finite-volume schemes for diffusion problems. Oil & Gas Science and Technology-Revue de l’IFP, 73. Retrieved from https://ogst.ifpenergiesnouvelles.fr/articles/ogst/pdf/2018/01/ogst180050.pdf
    16. Yang, G., Weigand, B., Terzis, A., Weishaupt, K., & Helmig, R. (2017). Numerical simulation of turbulent flow and heat transfer in a three-dimensional channel coupled with flow through porous structures. Transport in Porous Media, 120. https://doi.org/10.1007/s11242-017-0995-9
    17. Mejri, E., Bouhlila, R., & Helmig, R. (2017). Heterogeneity effects on evaporation-induced halite and gypsum co-precipitation in porous media. Transport in Porous Media. https://doi.org/10.1007/s111242-017-0846-8
    18. Jabbari, M., Shojaee Nasirabadi, P., Jambhekar, V. A., Hattel, J. H., & Helmig, R. (2017). Drying of a tape-cast layer: Numerical investigation of influencing parameters. International Journal of Heat and Mass Transfer, 108. https://doi.org/10.1016/j.ijheatmasstransfer.2017.01.074
    19. Fetzer, T., Vanderborght, J., Mosthaf, K., Smits, K. M., & Helmig, R. (2017). Heat and water transport in soils and across the soil-atmosphere interface: 2. Numerical analysis. Water Resources Research, 53(2). https://doi.org/10.1002/2016WR019983
    20. Gläser, D., Helmig, R., Flemisch, B., & Class, H. (2017). A discrete fracture model for two-phase flow in fractured porous media. Advances in Water Resources, 110. https://doi.org/10.1016/j.advwatres.2017.10.031
    21. Trautz, A., Illangasekare, T., Rodriguez-Iturbe, I., Heck, K., & Helmig, R. (2017). Development of an experimental approach to study coupled soil-plant-atmosphere processes using plant analogs. Water Resources Research, 53.
    22. Terzis, A., Roumeli, E., Weishaupt, K., Brack, S., Aslannejad, H., Groß, J., … Weigand, B. (2017). Heat release at the wetting front during capillary filling of cellulosic micro-substrates. Journal of Colloid and Interface Science. https://doi.org/10.1016/j.jcis.2017.06.027
    23. Schneider, M., Flemisch, B., Helmig, R., Terekhov, K., & Tchelepi, H. (2017). Monotone nonlinear finite-volume method for challenging grids. Computational Geosciences. https://doi.org/10.1007/s10596-017-9710-8
    24. Gupta, S., Deusner, C., Haeckel, M., Helmig, R., & Wohlmuth, B. I. (2017). Testing a thermo-chemo-hydro-geomechanical model for gas hydrate bearing sediments using triaxial compression lab experiments. https://doi.org/10.1002/2017GC006901
    25. Vanderborght, J., Fetzer, T., Mosthaf, K., Smits, K. M., & Helmig, R. (2017). Heat and water transport in soils and across the soil-atmosphere interface: 1. Theory and different model concepts. Water Resources Research, 53(2). https://doi.org/10.1002/2016WR019982
    26. Becker, B., Guo, B., Bandilla, K., Celia, M. A., Flemisch, B., & Helmig, R. (2017). A pseudo-vertical equilibrium model for slow gravity drainage dynamics. Water Resources Research, 53. https://doi.org/10.1002/2017WR021644
    27. Neuweiler, I., & Helmig, R. (2017). Debates - Hypothesis testing in hydrology: a subsurface perspective. Water Resources Research, 53. https://doi.org/1002/2016WR020047
    28. Jabbari, M., Jambhekar, V. A., Hattel, J. H., & Helmig, R. (2016). Drying of a tape-cast layer: Numerical modelling of the evaporation process in a graded/layered material. International Journal of Heat and Mass Transfer, 103. https://doi.org/10.1016/j.ijheatmasstransfer.2016.08.073
    29. Baber, K., Flemisch, B., & Helmig, R. (2016). Modelling drop dynamics at the interface between free and porous-medium flow using the mortar method. International Journal of Heat and Mass Transfer. Retrieved from https://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/2014/SimTech_Preprint_Baber2014.pdf
    30. Drzisga, D., Köppl, T., Pohl, U., Helmig, R., & Wohlmuth, B. I. (2016). Numerical modeling of compensation mechanisms for peripheral arterial stenoses. Computers in Biology and Medicine, (70).
    31. Gupta, S., Wohlmuth, B. I., & Helmig, R. (2016). Multi-rate time stepping schemes for hydro-geomechanical model for subsurface methane hydrate reservoirs. Advances in Water Resources, 91. https://doi.org/10.1016/j.advwatres.2016.02.013
    32. Fattahi, E., Waluga, C., Wohlmuth, B. I., Rüde, U., Manhard, M., & Helmig, R. (2016). Lattice Boltzmann methods in porous media simulations: laminar to turbulent flow. Computers and Fluids, 140.
    33. Jambhekar, V. A., Mejri, E., Schröder, N., Helmig, R., & Shokri, N. (2016). Kinetic Approach to Model Reactive Transport and Mixed Salt Precipitation in a Coupled Free-Flow–Porous-Media System. Transport in Porous Media. https://doi.org/10.1007/s11242-016-0665-3
    34. Szymanska, P., Tisler, W., Schütz, C., Szymkiewicz, A., Neuweiler, I., & Helmig, R. (2016). Experimental and numerical analysis of air trapping in a porous medium with coarse textured inclusions. Acta Geophysica, 64.
    35. Lindner, F., Nuske, P., Weishaupt, K., Helmig, R., Mundt, C., & Pfitzner, M. (2016). Transpiration cooling with local thermal nonequilibrium: Model comparison in multiphase flow in porous media. Journal of Porous Media, 19. https://doi.org/10.1615/JPorMedia.v19.i2.30
    36. Hommel, J., Ebigbo, A., Gerlach, R., Cunningham, A. B., Helmig, R., & Class, H. (2016). Finding a balance between accuracy and effort for modeling biomineralization. Energy Procedia, 97. https://doi.org/10.1016/j.egypro.2016.10.028
    37. Schneider, M., Flemisch, B., & Helmig, R. (2016). Monotone nonlinear finite-volume method for nonisothermal two-phase two-component flow in porous media. International Journal for Numerical Methods in Fluids, 84(6). https://doi.org/10.1002/fld.4352
    38. Helmig, R., Hassanizadeh, S. M., & Dahle, H. K. (2016). Foreword. NUPUS: Porous media research has got a brand name. Transport in Porous Media, 114. https://doi.org/10.1007/s11242-016-0736-5
    39. Hommel, J., Lauchnor, E., Gerlach, R., Cunningham, A. B., Ebigbo, A., Helmig, R., & Class, H. (2016). Investigating the influence of the initial biomass distribution and injection strategies on biofilm-mediated calcite precipitation in porous media. Transport in Porous Media, 114(2). https://doi.org/10.1007/s11242-015-0617-3
    40. Rybak, I., Magiera, J., Helmig, R., & Rohde, C. (2015). Multirate time integration for coupled saturated/unsaturated porous medium and free flow systems. Computational Geosciences. https://doi.org/10.1007/s10596-015-9469-8
    41. Hommel, J., Lauchnor, E., Phillips, A., Gerlach, R., Cunningham, A. B., Helmig, R., … Class, H. (2015). A revised model for microbially induced calcite precipitation: Improvements and new insights based on recent experiments. Water Resources Research, 51(5). https://doi.org/10.1002/2014WR016503
    42. Schmid, K. S., Groß, J., & Helmig, R. (2014). Chemical osmosis in two-phase flow and salinity-dependent capillary pressures in rocks with microporosity. Water Resources Research. https://doi.org/10.1002/2013WR013848
    43. Lindner, F., Nuske, P., Helmig, R., Mundt, C., & Pfitzner, M. (2014). Transpiration Cooling with Local Thermal Non-Equilibrium: Model Comparison in Multiphase Flow in Porous Media. Journal of Porous Media.
    44. Helmig, R., Flemisch, B., Wolff, M., Ebigbo, A., & Class, H. (2013). Model coupling for multiphase flow in porous media. Advances in Water Resources, 51. https://doi.org/10.1016/j.advwatres.2012.07.003
    45. Köppl, T., Wohlmuth, B. I., & Helmig, R. (2013). Reduced one-dimensional modelling and numerical simulation for mass transport in fluids. International Journal for Numerical Methods in Fluids, 72. https://doi.org/10.1002/fld.3728
    46. Kissinger, A., Helmig, R., Ebigbo, A., Class, H., Lange, T., Sauter, M., … Jahnke, W. (2013). Hydraulic fracturing in unconventional gas reservoirs: risks in the geological system, part 2. Environmental Earth Sciences. https://doi.org/10.1007/s12665-013-2578-6
    47. Hommel, J., Cunningham, A. B., Helmig, R., Ebigbo, A., & Class, H. (2013). Numerical Investigation of Microbially Induced Calcite Precipitation as a Leakage Mitigation Technology. Energy Procedia, 40,2013. https://doi.org/10.1016/j.egypro.2013.08.045
    48. Sauter, M., Helmig, R., & Klünker, J. (2012). Risiken im Geologischen System bei der Fracking-Technologie: Abschätzung der Auswirkungen auf Grundwasservorkmmen. Wasser Und Abfall, Boden, Altlasten, Umweltschutz, 14.
    49. Richter, T., Rudlof, S., Adjibadji, B., Bernlöhr, H., Grüninger, C., Munz, C.-D., … Helmig, R. (2012). ViPLab - A Virtual Programming Laboratory for Mathematics and Engineering. Interactive Technology and Smart Education, 9(4). https://doi.org/10.1108/17415651211284039
    50. Erbertseder, K., Reichold, J., Helmig, R., Jenny, P., & Flemisch, B. (2012). A coupled discrete / continuum model for describing cancer therapeutic transport in the lung. PloS ONE (Public Library of Science Online Journal), 7(3). Retrieved from https://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0031966
    51. Stoverud, K. H., Darcis, M., Helmig, R., & Hassanizadeh, S. M. (2012). Modeling concentration distribution and deformation during convection-enhanced drug delivery into brain tissue. Transport in Porous Media, 92(1).
    52. Drewes, J., Geist, J., Hegerl, G., Helmig, R., Huber, H., Jekel, M., … Wilderer, P. (2012). Integrierter Ansatz zur Wasserforschung und Technologieentwicklung. Korrespondenz Abwasser, 59.
    53. Jackson, A. S., Rybak, I., Helmig, R., Gray, W. G., & Miller, C. T. (2012). Thermodynamically constrained averaging theory approach for modeling flow and transport phenomena in porous medium systems: 9. Transition region model. Advances in Water Resources, 42. https://doi.org/10.1016/j.advwatres.2012.01.006
    54. Wolff, M., Flemisch, B., Helmig, R., & Aavatsmark, I. (2012). Treatment of tensorial relative permeabilities with multipoint flux approximation. International Journal of Numerical Analysis & Modeling, 9(3). Retrieved from https://www.math.ualberta.ca/ijnam/Volume-9-2012/No-3-12/2012-03-14.pdf
    55. Fritz, J., Flemisch, B., & Helmig, R. (2011). Decoupled and multiphysics models for non-isothermal compositional two-phase flow in porous media. International Journal of Numerical Analysis & Modeling, 9(1). Retrieved from https://www.math.ualberta.ca/ijnam/Volume-9-2012/No-1-12/2012-01-02.pdf
    56. Neuweiler, I., Papafotiou, A., Class, H., & Helmig, R. (2011). Estimation of effective parameters for a two-phase flow problem in non-Gaussian heterogeneous porous media. Journal of Contaminant Hydrology, 120121(1). https://doi.org/10.1016/j.jconhyd.2010.08.001
    57. Flemisch, B., Darcis, M., Erbertseder, K., Faigle, B., Lauser, A., Mosthaf, K., … Helmig, R. (2011). DUMUX: DUNE for multi-phase, component, scale, physics, ... flow and transport in porous media. Advances in Water Resources, 34(9). https://doi.org/10.1016/j.advwaters.2011.03.007
    58. Szymkiewicz, A., Helmig, R., & Neuweiler, I. (2011). Upscaling unsaturated flow in binary porous media with air entry pressure effects. Water Resources Research, 48. https://doi.org/10.1029/2011WR010893
    59. Cao, Y., Helmig, R., & Wohlmuth, B. I. (2011a). A two-scale operator-splitting method for two-phase flow in porous media. Advances in Water Resources, 34(12). https://doi.org/10.1016/j.advwatres.2011.07.002
    60. Lauser, A., Hager, C., Helmig, R., & Wohlmuth, B. I. (2011). A new approach for phase transitions in miscible multi-phase flow in porous media. Advances in Water Resources, 34(8). https://doi.org/10.1016, j.advwaters.2011.04.021
    61. Oladyshkin, S., Class, H., Helmig, R., & Nowak, W. (2011a). A concept for data-driven uncertainty quantification and its application to carbon dioxide storage in geological formations. Advances in Water Resources, 34. https://doi.org/10.1016/j.advwatres.2011.08.005
    62. Darcis, M., Class, H., Flemisch, B., & Helmig, R. (2011). Sequential model coupling for feasibility studies of CO2 storage in deep saline aquifers. Oil & Gas Science and Technology-Revue de l’IFP, 66(1). https://doi.org/10.2516/ogst/2010037
    63. Tatomir, A., Szymkiewicz, A., Class, H., & Helmig, R. (2011). Modeling two phase flow in large scale fractured porous media with an extended multiple interacting continua method. Computer Modeling in Engineering & Sciences.
    64. Oladyshkin, S., Class, H., Helmig, R., & Nowak, W. (2011b). An integrative approach to robust design and probabilistic risk assessment for CO2 storage in geological formations. Computational Geosciences, 15(3). https://doi.org/10.1007/s10596-011-9224-8
    65. Cao, Y., Helmig, R., & Wohlmuth, B. I. (2011b). Convergence of the multipoint flux approximation L-method for homogeneous media on uniform grids. Numerical Methods for Partial Differential Equations, 27(2). https://doi.org/10.1002/num.20525
    66. Ahrenholz, B., Niessner, J., Helmig, R., & Krafczyk, M. (2011). Pore-scale determination of parameters for macro-scale modeling of evaporation processes in porous media. Water Resources Research, 47. https://doi.org/10.1029/2010WR009519
    67. van Noorden, T. L., Pop, I. S., Ebigbo, A., & Helmig, R. (2010). An upscaled model for biofilm growth in a thin strip. Water Resources Research, 46. https://doi.org/10.1029/2009WR008217
    68. Skjælaaen, I., Ebigbo, A., Espedal, M., & Helmig, R. (2010). A model for transport of hydrogen sulfide in oil- and water-saturated porous media. Computing and Visualization in Science, 13(6). https://doi.org/10.1007/s00791-010-0143-3
    69. Nuske, P., Faigle, B., Helmig, R., Niessner, J., & Neuweiler, I. (2010). Modeling gas-water processes in fractures with fracture flow properties obtained through upscaling. Water Resources Research, 46. https://doi.org/10.1029/2009WR008076
    70. Ochs, S. O., Class, H., Färber, A., & Helmig, R. (2010). Methods for predicting the spreading of steam below the water table during subsurface remediation. Water Resources Research, 46. https://doi.org/10.1029/2007WR006401
    71. Papafotiou, A., Sheta, H., & Helmig, R. (2010). Numerical modeling of two-phase hysteresis combined with an interface condition for heterogeneous porous media. Computational Geosciences, 14(2). https://doi.org/10.1007/s10596-009-9151-0
    72. Helmig, R., Weiss, A., & Wohlmuth, B. I. (2009). Variational inequalities for modeling flow in heterogeneous porous media with entry pressure. Computational Geosciences, 13(3). https://doi.org/10.1007/s10596-008-9125-7
    73. Kopp, A., Class, H., & Helmig, R. (2009). Investigations on CO2 storage capacity in saline aquifers - Part 1: Dimensional analysis of flow processes and reservoir characteristics. International Journal of Greenhouse Gas Control, 3(3). https://doi.org/10.1016/j.ijggc.2008.10.002
    74. Kopp, A., Probst, P., Class, H., Hurter, S., & Helmig, R. (2009). Estimation of CO2 storage capacity coefficients in geologic formations. Energy Procedia, 1(1). https://doi.org/10.1016/j.egypro.2009.02.060
    75. Class, H., Ebigbo, A., Helmig, R., Dahle, H. K., Nordbotten, J. M., Celia, M. A., … Wei, L. (2009). A benchmark study on problems related to CO2 storage in geologic formations: Summary and discussion of the results. Computational Geosciences, 13(4). https://doi.org/10.1007/s10596-009-9146-x
    76. Papafotiou, A., Helmig, R., Schaap, J., Lehmann, P., Kaestner, A., Flühler, H., … Durner, W. (2008). From the pore scale to the lab scale: 3D lab experiment and numerical simulation of drainage in heterogeneous porous media. Advances in Water Resources, 31(9). https://doi.org/10.1016/j.advwatres.2007.09.006
    77. Manthey, S., Hassanizadeh, S. M., Helmig, R., & Hilfer, R. (2008). Dimensional analysis of two-phase flow including a rate-dependent capillary pressure-saturation relationship. Advances in Water Resources, 31(9). https://doi.org/10.1016/j.advwatres.2008.01.021
    78. Class, H., Helmig, R., & Neuweiler, I. (2008). Sequential coupling of models for contaminant spreading in the vadose zone. Vadose Zone Journal, 7(2). https://doi.org/10.2136/vzj2007.0056
    79. Reichenberger, V., Jakobs, H., Bastian, P., & Helmig, R. (2006). A mixed-dimensional finite volume method for two-phase flow in fractured porous media. Advances in Water Resources, 29(7). https://doi.org/10.1016/j.advwatres.2005.09.001
  2. incollection

    1. Schneider, M., Gläser, D., Flemisch, B., & Helmig, R. (2017). Nonlinear finite-volume scheme for complex flow processes on corner-point grids. In Finite Volumes for Complex Applications VIII - Hyperbolic, Elliptic and Parabolic Problems: FVCA 8, 12.06.2017 - 16.06.2017, Lille. Finite Volumes for Complex Applications VIII - Hyperbolic, Elliptic and Parabolic Problems: FVCA 8, 12.06.2017 - 16.06.2017, Lille. Retrieved from https://link.springer.com/chapter/10.1007/978-3-319-57394-6_44
    2. Wolff, M., Cao, Y., Flemisch, B., Helmig, R., & Wohlmuth, B. I. (2013). Multi-point flux approximation L-method in 3D: Numerical convergence and application to two-phase flow through porous media (By P. Bastian, J. Kraus, & M. Scheichl, R. & Wheeler; P. Bastian, J. Kraus, & M. Scheichl, R. & Wheeler, eds.). Retrieved from https://www.degruyter.com/view/product/182024
    3. Helmig, R., Niessner, J., Flemisch, B., Wolff, M., & Fritz, J. (2010). Efficient modelling of flow and transport in porous media using multi-physics and multi-scale approaches. In W. Freeden, Z. Nashed, & and T. Sonar (Eds.), Handbook of Geomathematics (By W. Freeden, Z. Nashed, & and T. Sonar). Retrieved from https://www.springer.com/mathematics/applications/book/978-3-642-01545-8
    4. Troldborg, M., Nowak, W., Binning, P. J., Bjerg, P. L., & Helmig, R. (2010). Uncertainty estimation of the mass discharge from a contaminated site using a fully Bayesian framework. In M. Schirmer & et al. (Eds.), Groundwater Quality 2010, 13.06.2010 - 18.06.2010, Zürich, Schweiz (By M. Schirmer & et al.). IAHS Redbook.
  3. inproceedings

    1. Hommel, J., Phillips, A., Gerlach, R., Cunningham, A. B., Helmig, R., & Class, H. (2017). Modeling porous medium modification through induced calcite precipitation. 7th GACM Colloquium on Computational Mechanics , 11.10.2017 - 13.10.2017, Stuttgart. Retrieved from https://dx.doi.org/10.18419/opus-9334
    2. Fetzer, T., Grüninger, C., Flemisch, B., & Helmig, R. (2017). On the Conditions for Coupling Free Flow and Porous Medium Flow in a Finite Volume Framework. Finite Volumes for Complex Applications VIII - Hyperbolic, Elliptic and Parabolic Problems: FVCA 8, 12.06.2017 - 16.06.2017, Lille. https://doi.org/10.1007/978-3-319-57394-6_37
    3. Köppl, T., Helmig, R., & Wohlmuth, B. I. (2015). A multi-scale model for mass transport in arteries and tissue. 3rd International Workshop on Computational Engineering CE 2014, 06.10.2014 - 10.10.2014, Universität Stuttgart. Springer-Verlag.
    4. Mejri, E., Jambhekar, V. A., Helmig, R., & Rachida, B. (2015). A reactive transport model for the co-precipitation of Halite and Gypsum under evaporation from porous media. 6th International Conference on Approximation Methods and Numerical Modelling in Environment and Natural Resources MAMERN Conference », University of Pau, France. Presented at the Mamern VI 2015, Pau, France.
    5. Kissinger, A., Helmig, R., & Ebigbo, A. (2012). Modellierung des Transports von Frack-Fluiden, Lagerstättenwasser und Methan. In W. Frenz & P. K. andAxel Preuße (Eds.), 14. Aachener Altlasten- und Bergschadenkundliches Kolloquium: Unkonventionelle Gasgewinnung in NRW, 03.07.2012, Aachen (By W. Frenz & P. K. andAxel Preuße). GDMB Gesellschaft.
    6. Richter, T., Rudlof, S., Adjibadji, B., Bernlöhr, H., Grüninger, C., Munz, C.-D., … Helmig, R. (2012). ViPLab - A Virtual Programming Laboratory for Mathematics and Engineering. 2011 IEEE International Symposium on Multimedia (ISM), 05.12.2011 - 07.12.2011, Dana Point, California USA.
    7. Enzenhöfer, R., Nowak, W., & Helmig, R. (2010). Using probabilistic well vulnerability criteria for a risk-based preventive drinking water safety concept. In M. Schirmer & et al. (Eds.), Groundwater Quality 2010, 13.06.2010 - 18.06.2010, Zürich, Schweiz (By M. Schirmer & et al.). Retrieved from https://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/S84REnzenhofer_review.pdf
    8. Oladyshkin, S., Class, H., Helmig, R., & Nowak, W. (2010a). Data-driven robust design and probabilistic risk assessment: application to underground carbon dioxide storage, Abstract H41L-03. AGU Fall Meeting 2010, 13.12.2010 - 17.12.2010, San Francisco, USA.
    9. Oladyshkin, S., Class, H., Helmig, R., & Nowak, W. (2010b). Probabilistic risk assessment for CO2 storage in geological formations: robust design and support for decision making under uncertainty. Geophysical Research Abstracts, Vol.12(EGU2010-3559). E. Schweizerbart’sche Verlagsbuchhandlung.
    10. Troldborg, M., Nowak, W., Binning, P. J., Bjerg, P. L., & Helmig, R. (2009). Quantifying uncertainty in mass discharge estimates from contaminated sites using a fully Bayesian framework. ModelCARE: Calibration and Reliability in Groundwater Modeling - Managing Groundwater and the Environment, 20.09.2009 - 23.09.2009, Wuhan, China.
    11. Helmig, R., Class, H., Darcis, M., Niessner, J., Erbertseder, K., Perfahl, H., & Reuss, M. (2008). Transfer of modeling concepts for flow and transport processes in porous media systems to biological tissues. DFG Expertengespräch Medizintechnik, 06.11.2008 - 07.11.2008, Potsdam.
    12. Cao, Y., Helmig, R., & Wohlmuth, B. I. (2008). The influence of the boundary discretization on the multipoint flux approximation L-method. In R. Eymard & J. M. Hérard (Eds.), Finite Volumes for Complex Applications V - Problems and Perspectives, 08.06.2008 - 13.06.2008, Aussois (By R. Eymard & J. M. Hérard). Wiley - VCH Verlag.
    13. Flemisch, B., Fritz, J., Helmig, R., Niessner, J., & Wohlmuth, B. I. (2007). DUMUX: a multi-scale multi-physics toolbox for flow and transport processes in porous media. In A. Ibrahimbegovic & F. Dias (Eds.), ECCOMAS Thematic Conference on Multi-scale Computational Methods for Solids and Fluids, 28.11.2007 - 30.11.2007, Paris, France (By A. Ibrahimbegovic & F. Dias). Retrieved from https://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/cachan_flemisch.pdf
  4. techreport

    1. Grüninger, C., Fetzer, T., Flemisch, B., & Helmig, R. (2017). Coupling DuMuX and DUNE-PDELab to investigate evaporation at the interface between Darcy and Navier-Stokes flow. In Archive of Numerical Software (No. 2017–1). https://doi.org/10.18419/opus-9360
    2. Kopp, A., Class, H., & Helmig, R. (2007). Treibhausgase in der Bodenfalle (No. 99). Retrieved from UNI-Kurier website: https://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/Stuttgarter-UniKurier-Nr99-pg54-Juni2007-Treibhausgase_in_der_Bodenfalle.pdf
    3. Dogan, M. O., Class, H., & Helmig, R. (2007). Numerische Modellierung von Mehrphasenströmungs- und Transportprozessen bei der Sequestrierung von CO2 in geologischen Formationen (No. 09_2007; Vol. LH215). Retrieved from https://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/co2trap_wissenschaftlicher_bericht.pdf
    4. Helmig, R., Paul, M., Zimmer, S., Brückner-Nieder, U., Hoffmann, M., Schumacher, H., & Lemmer, U. (2007). Abschlussbericht zum Projekt SULKA “Qualitätskonzept für internationale Studiengänge an den Universitäten Stuttgart, Ulm und Karlsruhe” (No. 16/2007; Vol. LH217).

posters

  1. M. Lipp, R. Helmig, K. Weishaupt, and M. Schneider, “Adaptive Staggered 2D Grids for DuMuX - Plans/Ideas,” Summer school on DDM, 19.06.2018 - 21.06.2018, Nice, France. Jun-2018.
  2. M. Lipp, R. Helmig, K. Weishaupt, and M. Schneider, “Adaptive Staggered 2D Grids for DuMuX - Plans/Ideas,” 2nd International Conference on Simulation Technology (SimTech 2018), 26.03.2018 - 28.03.2018, Stuttgart. Mar-2018.
  3. J. Hommel, A. Phillips, R. Gerlach, A. B. Cunningham, R. Helmig, and H. Class, “Modeling field-scale applications of microbially induced calcium carbonate precipitation,” 2nd International Conference on Simulation Technology (SimTech 2018), 26.03.2018 - 28.03.2018, Stuttgart. Mar-2018.
  4. R. Helmig, E. Coltman, T. Fetzer, and K. Heck, “Coupling free and porous-media flow,” Gordon Research Conference on Flow and Transport in Permeable Media, 08.07.2018 - 13.07.2018, Newry, ME, USA. Jul-2018.
  5. T. Illangasekare, A. Trautz, S. Howington, I. Rodriguez-Iturbe, A. Cihan, and R. Helmig, “Question of test scales in intermediate scale experimentation in problems involving porous media - free flow interfaces,” Gordon Research Conference on Flow and Transport in Permeable Media, 08.07.2018 - 13.07.2018, Newry, ME, USA. Jul-2018.
  6. J. Hommel, A. Phillips, R. Gerlach, A. B. Cunningham, R. Helmig, and H. Class, “Modeling field-scale applications of microbially induced calcium carbonate precipitation,” Computational Methods in Water Resources (CMWR) XXII, 04.06.2018 - 07.06.2018, St. Malo, Frankreich. Jun-2018.
  7. M. Lipp, R. Helmig, K. Weishaupt, and M. Schneider, “Adaptive Staggered 2D Grids for DuMuX - Plans/Ideas,” 2nd SRP NUPUS Meeting, 09.10.2017 - 11.10.2017, Mühlhausen im Täle. Oct-2017.
  8. B. Becker, B. Guo, K. Bandilla, M. A. Celia, B. Flemisch, and R. Helmig, “A pseudo-vertical equilibrium model for slow gravity drainage dynamics,” SIAM GS17 Erlangen, 11.09.2017 - 14.09.2017, Erlangen. Sep-2017.
  9. B. Becker, B. Guo, K. Bandilla, M. A. Celia, B. Flemisch, and R. Helmig, “A pseudo-vertical equilibrium model for slow gravity drainage dynamics,” SimTech Statusseminar, 04.10.2017 - 06.10.2017, Bad Boll. Oct-2017.
  10. T. Köppl, M. Schneider, and R. Helmig, “Stability of saturation overshoots for two-phase flow in porous media,” SIAM GS17 Erlangen, 11.09.2017 - 14.09.2017, Erlangen. Sep-2017.
  11. T. Fetzer, C. Grüninger, B. Flemisch, and R. Helmig, “On the Conditions for Coupling Free Flow and Porous-Medium Flow in a Finite Volume Framework,” Finite Volumes for Complex Applications VIII - Hyperbolic, Elliptic and Parabolic Problems: FVCA 8, 12.06.2017 - 16.06.2017, Lille. Jun-2017.
  12. G. Seitz, R. Helmig, and H. Class, “Numerical Model of a Ca(OH)2 / CaO thermochemical heat storage reactor,” 9th International Conference on Porous Media & Annual Meeting - InterPore 2017, 08.05.2017 - 11.05.2017, Rotterdam, The Netherlands. May-2017.
  13. B. Becker, B. Guo, K. Bandilla, M. A. Celia, B. Flemisch, and R. Helmig, “Adaptive Coupling of a Full-Dimensional Model with a Vertical Equilibrium Model,” Gordon Research Conference on Flow and Transport in Permeable Media, 01.08.2016 - 05.08.2016, Girona, Spanien. Aug-2016.
  14. B. Becker, B. Guo, K. Bandilla, M. A. Celia, B. Flemisch, and R. Helmig, “Adaptive Coupling of a Full-Dimensional Model with a Vertical Equilibrium Model,” SimTech Statusseminar, 23.11.2016 - 25.11.2016, Bad Boll. Nov-2016.
  15. J. Hommel, A. Ebigbo, R. Gerlach, A. B. Cunningham, R. Helmig, and H. Class, “Finding a balance between accuracy and computational effort for modeling biomineralization,” 1st SRP NUPUS Meeting, 05.10.2016 - 07.10.2016, Mühlhausen im Täle. Oct-2016.
  16. J. Hommel, A. Ebigbo, R. Gerlach, A. B. Cunningham, R. Helmig, and H. Class, “Finding a balance between accuracy and effort for modeling biomineralization,” Gordon Research Seminar on Flow and Transport in Permeable Media, 30.07.2016 - 31.07.2016, Girona, Spanien. Jul-2016.
  17. T. Fetzer, C. Grüninger, K. M. Smits, and R. Helmig, “How turbulence and surface properties affect porous-medium / free flow exchange processes,” Gordon Research Conference on Flow and Transport in Permeable Media, 01.08.2016 - 05.08.2016, Girona, Spanien. Aug-2016.
  18. J. Hommel, A. Ebigbo, R. Gerlach, A. B. Cunningham, R. Helmig, and H. Class, “Finding a balance between accuracy and effort for modeling biomineralization,” Gordon Research Conference on Flow and Transport in Permeable Media, 01.08.2016 - 05.08.2016, Girona, Spanien. Aug-2016.
  19. J. Hommel, A. Ebigbo, R. Gerlach, A. B. Cunningham, R. Helmig, and H. Class, “Finding a balance between accuracy and computational effort for modeling biomineralization,” EGU General Assembly 2016, 18.04.2016 - 22.04.2016, Vienna, Austria. Apr-2016.
  20. B. Becker, B. Guo, M. A. Celia, K. Bandilla, B. Flemisch, and R. Helmig, “Evaluation of the coupling of a full-dimensional multiphase model to a vertical equilibrium model,” 2015 AGU Fall Meeting, 14.12.2015 - 18.12.2015, San Francisco, USA. Dec-2015.
  21. B. Becker, B. Guo, B. Flemisch, and R. Helmig, “Developing a coupled numerical model for underground gas storage,” SCCER Heat & Electricity Storage Symposium, 05.05.2015, Villigen-PSI Switzerland. May-2015.
  22. T. Fetzer, K. M. Smits, J. Vanderborght, and R. Helmig, “Modeling Evaporation Using Coupled RANS/Darcy Models,” NUPUS annual meeting 2015 , 08.09.2015 - 12.09.2015, Freudenstadt. Sep-2015.
  23. N. Schröder, B. Flemisch, T. Koch, J. Vanderborght, and R. Helmig, “Soil-Root Interaction Simulation with DuMux,” NUPUS annual meeting 2015 , 08.09.2015 - 12.09.2015, Freudenstadt. Sep-2015.
  24. J. Hommel, A. Ebigbo, R. Gerlach, A. B. Cunningham, R. Helmig, and H. Class, “Finding a balance between accuracy and effort for modeling biomineralization,” NUPUS annual meeting 2015 , 08.09.2015 - 12.09.2015, Freudenstadt. Sep-2015.
  25. M. Beck, G. Seitz, H. Class, and R. Helmig, “A new phenomenological approach to modelling of shear failure in porous media,” NUPUS annual meeting 2015 , 08.09.2015 - 12.09.2015, Freudenstadt. Sep-2015.
  26. J. Hommel et al., “A revised model for microbially induced calcite precipitation - improvements and insights,” 7th International Conference on Porous Media & Annual Meeting - InterPore 2015, 18.05.2015 - 21.05.2015, Padua, Italy. May-2015.
  27. T. Fetzer, C. Grüninger, B. Flemisch, K. M. Smits, J. Vanderborght, and R. Helmig, “Modeling bare soil evaporation with a turbulent free flow/ Darcy flow coupled model,” International Conference On Integrated Hydrosystem Modelling, 07.04.2015 - 10.04.2015, Tübingen. Apr-2015.
  28. T. Fetzer, C. Grüninger, K. M. Smits, J. Vanderborght, and R. Helmig, “Analysis of processes and properties at a rough porous-medium free-flow interface,” MUSIS Workshop 2015, 10.03.2015 - 12.03.2015, Potsdam. Mar-2015.
  29. E. Mejri, V. A. Jambhekar, K. S. Schmid, R. Bouhlila, and R. Helmig, “Modeling and Analysis of salt precipitation on evaporation processes in the unsaturated zone,” 8th NUPUS Meeting, Freudenstadt, Black Forest, Germany, 16-19, March, 2014. Mar-2014.
  30. B. Becker, B. Guo, M. Schneider, and R. Helmig, “Development of efficient models accounting for reversible flow at various subsurface energy storage sites,” 7. SimTech Statusseminar, 10.12.2014 - 12.12.2014, Bad Boll. Dec-2014.
  31. B. Becker, B. Faigle, M. Schneider, and R. Helmig, “Development of a heuristic grid adaptation indicator based on rigorous a posteriori error estimation,” Gordon Research Conference on Flow and Transport in Permeable Media 2014, 06.07.2014 - 11.07.2014, Lewiston, Maine, USA. Jul-2014.
  32. J. Hommel, E. Lauchnor, A. B. Cunningham, R. Helmig, A. Ebigbo, and H. Class, “Improvements in Modeling Microbially Induced Calcite Precipitation as a Leakage Mitigation Technology,” Gordon Research Seminar on Flow and Transport in Permeable Media 2014, 05.07.2014 - 06.07.2014, Lewiston, Maine, USA. Jul-2014.
  33. E. Mejri, V. A. Jambhekar, R. Helmig, and K. S. Schmid, “Modelling of Salt Precipitation in Porous Media through Evaporation of Saline Water: effects of permeability-porosity functions and salt types,” Computational Methods in Water Resources (CMWR) XX, 10.06.2014 - 13.06.2014, Stuttgart. Jun-2014.
  34. N. Schröder, J. Vanderborght, N. Lazarovitch, R. Helmig, H. Vereecken, and M. Javaux, “Modeling soil-root interactions: Effect of rhizosphere salinity on transpiration reduction,” Gordon Research Conference on Flow and Transport in Permeable Media 2014, 06.07.2014 - 11.07.2014, Lewiston, Maine, USA. Jul-2014.
  35. T. Haas, K. Stork, R. Helmig, and F.-J. Brüggemeier, “Gesellschaftliche Konzepte für den Umgang mit Flüssen,” Akademientag 2014, 24.11.2014, München. Nov-2014.
  36. T. Haas, K. Stork, R. Helmig, and F.-J. Brüggemeier, “Transdisziplinäre Werkzeuge zur Analyse von Konflikten rund um Hochwasserschutzmaßnahmen,” Akademientag 2014, 24.11.2014, München. Nov-2014.
  37. N. Schwenck, A. Tatomir, M. Köppel, B. Flemisch, R. Helmig, and B. I. Wohlmuth, “Comparison of Lower- and Equi-Dimensional, Discrete and Embedded Models for Fractured Porous Media Flow,” Computational Methods in Water Resources (CMWR) XX, 10.06.2014 - 13.06.2014, Stuttgart. Jun-2014.
  38. T. Fetzer, K. M. Smits, C. Grüninger, and R. Helmig, “Coupled porous-medium and free flow under turbulent and rough conditions,” Gordon Research Conference on Flow and Transport in Permeable Media 2014, 06.07.2014 - 11.07.2014, Lewiston, Maine, USA. Jul-2014.
  39. M. Beck, M. Darcis, H. Class, and R. Helmig, “Spatial model coupling - an efficient scheme to combine hydraulic and geomechanic simulations,” Gordon Research Conference on Flow and Transport in Permeable Media 2014, 06.07.2014 - 11.07.2014, Lewiston, Maine, USA. Jul-2014.
  40. J. Hommel, E. Lauchnor, A. B. Cunningham, R. Helmig, A. Ebigbo, and H. Class, “Improvements in Modeling Microbially Induced Calcite Precipitation as a Leakage Mitigation Technology,” Gordon Research Conference on Flow and Transport in Permeable Media 2014, 06.07.2014 - 11.07.2014, Lewiston, Maine, USA. Jul-2014.
  41. T. Fetzer, K. M. Smits, K. Mosthaf, and R. Helmig, “Coupling porous-medium and free flow under turbulent and rough conditions,” Computational Methods in Water Resources XX. International Conference, 10.06.2014 - 13.06.2014, Stuttgart. Jun-2014.
  42. J. Hommel, E. Lauchnor, A. B. Cunningham, R. Helmig, A. Ebigbo, and H. Class, “Estimation of uncertain parameters to improve modeling of Microbially Induced Calcite Precipitation,” European Geoscience Union General Assembly 2014, 28.04.2014 - 02.05.2014, Vienna, Austria. May-2014.
  43. T. Fetzer, K. M. Smits, C. Grüninger, and R. Helmig, “Modeling interactions between turbulent free flow and porous-medium flow,” NUPUS annual meeting 2014, 16.03.2014 - 19.03.2014, Freudenstadt. Mar-2014.
  44. J. Hommel, A. B. Cunningham, R. Helmig, A. Ebigbo, and H. Class, “Estimation of uncertain parameters of the biomineralization model by inverse modeling,” NUPUS annual meeting 2014, 16.03.2014 - 19.03.2014, Freudenstadt. Mar-2014.
  45. H. Class et al., “Dumux: Dune for Multi-Phase, Component, Scale, Physics, ... Flow and Transport in Porous Media,” NumPor Annual Meeting 2014, 02.03.2014 - 03.03.2014, KAUST, Kingdom of Saudi Arabia. Mar-2014.
  46. N. Schröder, K. Huber, J. Vanderborght, M. Javaux, R. Helmig, and H. Vereecken, “Modelling Solute Transport Processes in a Plant-Soil System N.,” NUPUS-Conference, 30.09.2013 - 02.10.2013, Bergen, Norway. Oct-2013.
  47. B. Faigle, R. Helmig, I. Aavatsmark, and B. Flemisch, “Adaptive modelling of multi-phase flow,” NUPUS-Conference, 30.09.2013 - 02.10.2013, Bergen, Norway. Oct-2013.
  48. T. Fetzer, K. M. Smits, J. Vanderborght, P. Jenny, and R. Helmig, “Modeling evaporation from porous media influenced by a turbulent free flow,” NUPUS-Conference, 30.09.2013 - 02.10.2013, Bergen, Norway. Sep-2013.
  49. K. Baber, B. Flemisch, K. Mosthaf, and R. Helmig, “Modelling drop formation at the interface between free flow and porous medium,” 5th International Conference on Porous Media & Annual Meeting - InterPore 2013, 22.05.2013 - 24.05.2013, Prague, Czech Republic. May-2013.
  50. J. Hommel, A. B. Cunningham, R. Helmig, A. Ebigbo, and H. Class, “Numerical investigation of microbially induced calcite precipitation as leakage mitigation technology,” NUPUS annual Meeting 17-20 March 2013, 17.03.2013 - 20.03.2013, Freudenstadt. Mar-2013.
  51. J. Hommel, A. B. Cunningham, A. Ebigbo, R. Helmig, and H. Class, “Numerical investigation of microbially induced calcite precipitation as leakage mitigation technology,” NUPUS-Conference, 30.09.2013 - 02.10.2013, Bergen, Norway. Oct-2013.
  52. M. Wolff, B. Flemisch, and R. Helmig, “Adaptive Multi-Scale Modeling of Two-Phase Flow Including Capillary Pressure,” SIAM Mathematical and Computational Issues in the Geosciences, 17.06.2013 - 20.06.2013, Padua, Italy. Jun-2013.
  53. K. Mosthaf, B. Flemisch, R. Helmig, and K. Baber, “Modelling evaporation from porous media influenced by atmospheric processes,” 5th International Conference on Porous Media & Annual Meeting - InterPore 2013, 22.05.2013 - 24.05.2013, Prague, Czech Republic. May-2013.
  54. T. Fetzer, K. Mosthaf, C. Grüninger, B. Flemisch, and R. Helmig, “Modeling evaporation from porous media influenced by a turbulent free flow,” EGU General Assembly 2013, 07.04.2013 - 12.04.2013, Wien, Österreich. Apr-2013.
  55. T. Fetzer, K. Mosthaf, C. Grüninger, B. Flemisch, and R. Helmig, “Modeling evaporation from porous media influenced by a turbulent free flow,” NUPUS annual Meeting 17-20 March 2013, 17.03.2013 - 20.03.2013, Freudenstadt. Mar-2013.
  56. P. Nuske, R. Helmig, S. M. Hassanizadeh, D. Or, and J. Groß, “Equilibrium Assumptions in Multiphase Flow Revisited,” Gordon Research Conference Flow and Transport in Permeable Media, 24.06.2012 - 29.06.2012, Les Diablerets, Schweiz. Jun-2012.
  57. N. Schwenck, B. Flemisch, B. I. Wohlmuth, and R. Helmig, “An xfem approach for the simulation of fractured porous-media systems,” Gordon Research Conference Flow and Transport in Permeable Media, 24.06.2012 - 29.06.2012, Les Diablerets, Schweiz. Jun-2012.
  58. R. Gerlach et al., “Improving control of microbially induced mineral precipitation in flow systems - experiments and modelling,” AGU 2012 Fall Meeting, 03.12.2012 - 07.12.2012, San Francisco, USA. Dec-2012.
  59. M. Wolff, B. Flemisch, and R. Helmig, “Adaptive Multi-Scale Modeling of Two-Phase Flow Including Capillary Pressure,” Gordon Research Conference Flow and Transport in Permeable Media, 24.06.2012 - 29.06.2012, Les Diablerets, Schweiz. Jun-2012.
  60. P. Nuske, R. Helmig, S. M. Hassanizadeh, D. Or, and J. Groß, “Equilibrium Assumptions in Multiphase Flow: Revisited,” Fourth International Conference on Porous Media and its Applications in Science, Engineering and Industry: An ECI Conference Series , 17.06.2012 - 22.06.2012, Potsdam. Jun-2012.
  61. P. Nuske, R. Helmig, S. M. Hassanizadeh, D. Or, and J. Groß, “Leaving Equilibrium Assumptions Behind: Challenges,” NUPUS Joint Meeting, 12.03.2012 - 13.03.2012, Freudenstadt. Mar-2012.
  62. P. Nuske, R. Helmig, S. M. Hassanizadeh, D. Or, and J. Groß, “Equilibrium Assumptions Revisited,” Gordon Research Conference Flow and Transport in Permeable Media, 24.06.2012 - 29.06.2012, Les Diablerets, Schweiz. Jun-2012.
  63. B. Faigle, R. Helmig, B. Flemisch, and I. Aavatsmark, “Adaptive modelling of multi-phase flow.,” Gordon Research Conference Flow and Transport in Permeable Media, 24.06.2012 - 29.06.2012, Les Diablerets, Schweiz. Jun-2012.
  64. K. Baber, K. Mosthaf, B. Flemisch, S. Müthing, and R. Helmig, “Coupling free flow and flow in porous media using mortar elements,” Gordon Research Conference Flow and Transport in Permeable Media, 24.06.2012 - 29.06.2012, Les Diablerets, Schweiz. Jul-2012.
  65. K. Mosthaf, K. Baber, B. Flemisch, and R. Helmig, “Modeling evaporation from porous media influenced by atmospheric processes,” Gordon Research Conference Flow and Transport in Permeable Media, 24.06.2012 - 29.06.2012, Les Diablerets, Schweiz. Jun-2012.
  66. K. Mosthaf, K. Baber, B. Flemisch, and R. Helmig, “Modeling evaporation influenced by atmospheric processes,” European Geosciences Union (EGU) - General Assembly, 22.04.2012 - 27.04.2012, Wien, Österreich. Apr-2012.
  67. P. Nuske, R. Helmig, and S. M. Hassanizadeh, “Chemical and Thermal Non-Equilibrium: Kinetic Mass & Energy Transfer,” NUPUS Joint Meeting, 13.03.2011 - 16.03.2011, Freudenstadt. Mar-2011.
  68. S. Oladyshkin, H. Class, R. Helmig, and W. Nowak, “Efficient Bayesian updating with particle filters based on polynomial chaos expansion for CO2 storage,” AGU Fall Meeting 2011, 05.12.2011 - 09.12.2011, San Francisco, USA. Dec-2011.
  69. S. Oladyshkin, H. Class, R. Helmig, and W. Nowak, “Modeling of underground carbon dioxide storage: data-driven robust design and probabilistic risk assessment,” SimTech 2011 - International Conference on Simulation Technology 2011, 14.06.2011 - 17.06.2011, Stuttgart. Jun-2011.
  70. R. Enzenhöfer, W. Nowak, and R. Helmig, “Risk management with probabilistic-dispersive well vulnerability criteria,” European Geosciences Union (EGU) - General Assembly, 03.04.2011 - 08.04.2011, Vienna, Austria. Apr-2011.
  71. R. Enzenhöfer, W. Nowak, and R. Helmig, “Probabilistic exposure risk assessment with advective-dispersive well vulnerability criteria,” NUPUS Joint Meeting, 13.03.2011 - 16.03.2011, Freudenstadt. Mar-2011.
  72. R. Enzenhöfer, A. Geiges, W. Nowak, and R. Helmig, “Optimal risk management support in actively managed well catchments by means of probabilistic vulnerability criteria,” SimTech 2011 - International Conference on Simulation Technology 2011, 14.06.2011 - 17.06.2011, Stuttgart. Jun-2011.
  73. M. Wolff, B. Flemisch, and R. Helmig, “Multi-scale modeling of two-phase flow in porous media,” SimTech 2011 - International Conference on Simulation Technology 2011, 14.06.2011 - 17.06.2011, Stuttgart. Jun-2011.
  74. L. Walter, H. Class, S. Oladyshkin, B. Flemisch, and R. Helmig, “Influence of Dirichlet boundary conditions on risk assessment for CO2 storage in geological formations,” SimTech 2011 - International Conference on Simulation Technology 2011, 14.06.2011 - 17.06.2011, Stuttgart. Jun-2011.
  75. K. Baber, R. Helmig, B. Flemisch, and K. Mosthaf, “Coupling of micro- and macro-models for complex flow and transport processes in biological tissue,” 3th International Conference on Porous Media & Annual Meeting - InterPore 2011, 29.03.2011 - 31.03.2011, Bordeaux, France. Mar-2011.
  76. K. Baber, B. Flemisch, R. Helmig, and K. Mosthaf, “Coupling of micro- and macro-models for complex flow and transport processes in biological tissue,” SimTech 2011 - International Conference on Simulation Technology 2011, 14.06.2011 - 17.06.2011, Stuttgart. Jun-2011.
  77. K. Mosthaf and R. Helmig, “Modeling and analysis of the movement of fluid-fluid interfaces in porous media coupled with free flow,” MUSIS Workshop on Interfacial Displacement in Unsaturated Porous Media, 02.02.2011 - 04.02.2011, Freudenstadt, no. EGU2011. Feb-2011.
  78. P. Nuske, J. Niessner, R. Helmig, and S. M. Hassanizadeh, “Interfacial Area Based Modelling: CO_2-Storage Simulation & Multiphysics Outlook,” Gordon Research Conference Flow and Transport in Permeable Media 2010, 11.07.2010 - 16.07.2010, Bates College, Lewiston ME, USA. Jul-2010.
  79. M. Wolff, R. Helmig, and B. Flemisch, “Upscaling of two-phase flow using full tensor effective permeabilities and treatment with MPFA O-method,” Gordon Research Conferences: Flow & Transport In Permeable Media, 11.07.2010 - 16.07.2010, Bates College, Lewiston, ME, USA. Jul-2010.
  80. K. Baber, B. Flemisch, R. Helmig, and K. Mosthaf, “Coupling of micro- and macro-models for complex flow and transport processes in biological tissue,” Gordon Research Conference Flow and Transport in Permeable Media 2010, 11.07.2010 - 16.07.2010, Bates College, Lewiston ME, USA. Jul-2010.
  81. L. Walter, S. Oladyshkin, H. Class, M. Darcis, and R. Helmig, “A study on pressure evolution in a sand channel system during CO2 injection,” Greenhouse Gas Control Technologies (GHGT10), 19.09.2010 - 23.09.2010, Amsterdam, The Netherlands. Sep-2010.
  82. K. Mosthaf et al., “Modeling and analysis of evaporation from porous media coupled with free flow,” European Geosciences Union (EGU) - General Assembly, 02.05.2010 - 07.05.2010, Vienna, Austria. May-2010.
  83. K. Erbertseder, R. Helmig, J. Reichold, and P. Jenny, “Modeling of the Spatial and Temporal Distribution of Therapeutic Agents in Pulmonary Tumors,” Gordon Research Conference Flow and Transport in Permeable Media 2010, 11.07.2010 - 16.07.2010, Bates College, Lewiston ME, USA. Jul-2010.
  84. K. Mosthaf, K. Baber, B. Flemisch, and R. Helmig, “A new coupling concept for the modeling of evaporation influenced by wind and radiation,” Gordon Research Conference Flow and Transport in Permeable Media 2010, 11.07.2010 - 16.07.2010, Bates College, Lewiston ME, USA. Jul-2010.
  85. R. Enzenhöfer, W. Nowak, and R. Helmig, “Quantification of Uncertainty for Transport-Based Well Vulnerability Criteria,” NUPUS Joint Meeting, 09.05.2010 - 12.05.2010, Freudenstadt. May-2010.
  86. P. Nuske, B. Faigle, J. Niessner, and R. Helmig, “Interfacial Area Based Simulation in Fractured Porous Media: Microscale Determination,” International conference on Non-linearities and Upscaling in Porous Media (NUPUS), 05.10.2009 - 07.10.2009, Stuttgart. Oct-2009.
  87. P. Nuske, J. Niessner, and R. Helmig, “Interfacial Area Based Simulation in Fractured Porous Media: Microscale Determination,” Summer School on the Role of Interfacial Areas in Two-Phase Flow and Transport in Porous Media, 20.07.2009 - 24.07.2009, Utrecht, The Netherlands. Jul-2009.
  88. M. Wolff, B. Flemisch, and R. Helmig, “Comparison of mathematical and numerical models for two-phase flow in porous media,” International conference on Non-linearities and Upscaling in Porous Media (NUPUS), 05.10.2009 - 07.10.2009, Stuttgart. Oct-2009.
  89. K. Mosthaf, H. Class, B. Flemisch, R. Helmig, T. Leijnse, and I. Rybak, “Multi-component modeling of porous-media flow coupled with free flow,” European Geosciences Union (EGU) - General Assembly, 20.04.2009 - 24.04.2009, Wien, Österreich. Apr-2009.
  90. K. Erbertseder and R. Helmig, “Modelling of the Spatial and Temporal Distribution of Therapeutic Agents in Tumours - A Double-Continuum Approach,” Transatlantic Summer School on Cancer Systems Biology - Molecular Mechanisms and Mathematical Modelling, 07.06.2009 - 11.06.2009, Rostock. Jun-2009.
  91. S. Oladyshkin, W. Nowak, and R. Helmig, “Joint design and probabilistic risk assessment for CO2 storage by integral probabilistic collocation method,” International conference on Non-linearities and Upscaling in Porous Media (NUPUS), 05.10.2009 - 07.10.2009, Stuttgart. Oct-2009.
  92. L. Stadler, R. Hinkelmann, K. Germer, J. Braun, and R. Helmig, “Simulation of the rainwater infiltration via macropores into natural slopes,” Young Scientists Workshop “Data Assimilation, Dealing with Uncertainties, and the Prediction Capabilities of Models in Water Research” of the DFG -Senate Commission on Water Research (KoWa). Oct-2007.
  93. A. Winkler, H. Class, and R. Helmig, “An Efficient Solution Technique for the Numerical Simulation of Thermally Enhanced Soil Vapour Extraction,” International Groundwater Symposium: “Bridging the Gap between Measurement and Modeling in Heterogeneous Media”, 25.03.2002 - 28.03.2002, Berkeley, USA. Mar-2002.
  94. L. Neunhäuserer, S. Gebauer, S. O. Ochs, R. Hinkelmann, R. Kornhuber, and R. Helmig, “Equidimensional Modelling of Flow and Transport Processes in Fractured Porous Systems II,” 14. International Conference on Computational Methods in Water Resources, 23.06.2002 - 28.06.2002, Delft, The Netherlands, vol. 1. Elsevier Science Publishers B.V., Jun-2002.

talks

  1. R. Helmig, “Vom Gehirn zum Energiespeicher: Poröse Medien sind überall,” VHS Stuttgart: Fragen an die Wissenschaft, 13.11.2018, Stuttgart. Nov-2018.
  2. R. Helmig, “Simulationen: die Welt besser verstehen? Strömung und Transport in porösen Medien,” Mintnight, Dietrich-Bonhoeffer-Gymnasium, 20.07.2018, Filderstadt. Jul-2018.
  3. R. Helmig, “Grundwasser im Spannungsfeld konkurrierender Nutzungen des Untergrundes,” Ringvorlesung IZKT: Wasser: Lebensraum, Sehnsuchtsort, Ressource, 11.06.2018, Stuttgart. Jun-2018.
  4. B. Becker, M. Schneider, H. Class, B. Flemisch, and R. Helmig, “Multi-physics models accounting for subsurface energy storage,” International Workshop on Geothermal Energy, 19.06.2018, Manchester, UK. Jun-2018.
  5. B. Becker, M. Schneider, H. Class, B. Flemisch, and R. Helmig, “Numerical models for evaluating the competitive use of the subsurface: the influence of energy storage and production in groundwater,” IAHR-BW 2017: Water as a key factor for sustainable development goals, 01.12.2017, Stuttgart. Dec-2017.
  6. B. Becker, M. Schneider, H. Class, B. Flemisch, and R. Helmig, “Model concepts for coupled geo-thermal flow and transport processes in subsurface systems,” 5th European Geothermal Workshop, 12.10.2017 - 13.10.2017, Karlsruhe. Oct-2017.
  7. B. Becker, M. Schneider, B. Flemisch, M. Wolff, B. Faigle, and R. Helmig, “Multi-scale and multi-physics modelling: IMPESC formulation,” Seminar, IFP Énergies nouvelles, 16.05.2017, Rueil Malmaison. May-2017.
  8. T. Fetzer, K. Weishaupt, V. A. Jambhekar, E. Mejri, and R. Helmig, “Modelling and analysis of soil-moisture processes in the subsurface: the influence of evaporation and salt precipitation in groundwater,” NUPUS Day, 12.05.2017, Delft University of Technology, Delft, The Netherlands. May-2017.
  9. R. Helmig, “Energiespeicherung, Herausforderung der Zukunft - Was Simulationen beitragen,” Im digitalen Labor - Durch Computersimulationen die Welt verstehen. Wissenschaftsausstellung des Exzellenzclusters SimTech und des Sonderforschungsbereiches 716 der Universität Stuttgart, 09.05.2017 - 30.07.2017, Stuttgart. May-2017.
  10. R. Helmig, “Modeling and analysis of soil-moisture processes in the subsurface: the influence of evaporation and salt precipitation in groundwater,” World Water Day 2017 Colloquium, 22.03.2017, Hohenheim. Mar-2017.
  11. R. Helmig, “Der Weg zum Wassernetzwerk Baden-Württemberg,” Auftaktveranstaltung des Netzwerks Wasserforschung Baden-Württemberg, 14.01.2016, Stuttgart. Jan-2016.
  12. R. Helmig, “Flow and transport in porous media: from environmental via technical to biological applications,” 1st German National Chapter Meeting InterPore, 05.12.2016 - 06.12.2016, Leipzig. Dec-2016.
  13. R. Helmig, “Numerical models for evaluating the competitive use of the subsurface: the influence of energy storage and production in groundwater,” GeoSim/SFB1114/NatRisk Annual Workshop 2016, 05.10.2016 - 07.10.2016, Potsdam. Oct-2016.
  14. R. Helmig, “Numerical models for evaluating the competitive use of the subsurface: the influence of energy storage and production in groundwater,” Seminar, Graduiertenkolleg “Wasser - Menschen - Landwirtschaft”, 23.05.2016, Universität Hohenheim. May-2016.
  15. T. Fetzer, B. Flemisch, and R. Helmig, “Coupling free and porous-medium flow via an interface including surface roughness,” 8th International Conference on Porous Media & Annual Meeting- InterPore 2016, 09.05.2016 - 12.05.2016, Cincinnati, Ohio, USA. May-2016.
  16. R. Helmig and H. Class, “Kann Wasser den Berg hoch fließen?,” Kinderuni Weil der Stadt, 14.04.2016, Weil der Stadt. Apr-2016.
  17. R. Helmig, “Darcy Lecture Series in Groundwater Science 2015: Numerical models for evaluating the competitive use of the subsurface: the influence of energy storage and production in groundwater,” 2015 Modflow and More, 31.05.2015 - 03.06.2015, Golden, Colorado, USA. Jun-2015.
  18. R. Helmig, “Darcy Lecture Series in Groundwater Science 2015: Numerical models for evaluating the competitive use of the subsurface: the influence of energy storage and production in groundwater,” Montana State University, 04.06.2015, Bozeman, Montana, USA. Jun-2015.
  19. R. Helmig, “Darcy Lecture Series in Groundwater Science 2015: Numerical models for evaluating the competitive use of the subsurface: the influence of energy storage and production in groundwater,” Universität Göttingen, 17.06.2015, Göttingen. Jun-2015.
  20. R. Helmig, “Darcy Lecture Series in Groundwater Science 2015: Modeling and analysis of soil-moisture processes in the subsurface: the influence of evaporation and salt precipitation in groundwater,” Ohio Groundwater Forum, 24.06.2015, Westerville, Ohio, USA. Jun-2015.
  21. R. Helmig, “Darcy Lecture Series in Groundwater Science 2015: Numerical models for evaluating the competitive use of the subsurface: the influence of energy storage and production in groundwater,” IWR-Kolloquium, 01.07.2015, Heidelberg. Jul-2015.
  22. R. Helmig and T. Fetzer, “Coupling two-phase compositional porous-medium and free flow,” Institutskolloquium Technische Thermodynamik, Deutsches Zentrum für Luft- und Raumfahrt, 14.07.2015, Stuttgart. Jul-2015.
  23. R. Helmig, B. Becker, H. Class, B. Flemisch, and M. Schneider, “Konkurrierende Nutzung des Untergrunds diskutiert am Beispiel der Energiespeicherung: Ist Mathematik hier notwendig?,” Tag der Erlanger Mathematik 2015, 17.07.2015, Erlangen. Jul-2015.
  24. R. Helmig, “Darcy Lecture Series in Groundwater Science 2015: Numerical models for evaluating the competitive use of the subsurface: the influence of energy storage and production in groundwater,” International Association of Hydrologists, New South Wales, 10.08.2015, Sydney. Aug-2015.
  25. R. Helmig, “Darcy Lecture Series in Groundwater Science 2015: Numerical models for evaluating the competitive use of the subsurface: the influence of energy storage and production in groundwater,” International Association of Hydrologists, Canberra, 11.08.2015, Canberra. Aug-2015.
  26. R. Helmig, “Darcy Lecture Series in Groundwater Science 2015: Numerical models for evaluating the competitive use of the subsurface: the influence of energy storage and production in groundwater,” International Association of Hydrologists, Melbourne, 13.08.2015, Melbourne. Aug-2015.
  27. R. Helmig, “Darcy Lecture Series in Groundwater Science 2015: Numerical models for evaluating the competitive use of the subsurface: the influence of energy storage and production in groundwater,” International Association of Hydrologists, Tasmania, 17.08.2015, Hobart. Aug-2015.
  28. R. Helmig, “Darcy Lecture Series in Groundwater Science 2015: Numerical models for evaluating the competitive use of the subsurface: the influence of energy storage and production in groundwater,” NCGRT, Flinders University, Adelaide, 18.08.2015, Adelaide. Aug-2015.
  29. R. Helmig, “Darcy Lecture Series in Groundwater Science 2015: Numerical models for evaluating the competitive use of the subsurface: the influence of energy storage and production in groundwater,” International Association of Hydrologists, Western Australia, 19.08.2015, Perth. Aug-2015.
  30. R. Helmig, “Darcy Lecture Series in Groundwater Science 2015: Numerical models for evaluating the competitive use of the subsurface: the influence of energy storage and production in groundwater,” International Association of Hydrologists, Northern Territory, 20.08.2015, Darwin. Aug-2015.
  31. R. Helmig, “Darcy Lecture Series in Groundwater Science 2015: Numerical models for evaluating the competitive use of the subsurface: the influence of energy storage and production in groundwater,” International Association of Hydrologists, Queensland, 25.08.2015, Brisbane. Aug-2015.
  32. R. Helmig, “Darcy Lecture Series in Groundwater Science 2015: Modeling and analysis of soil-moisture processes in the subsurface: the influence of evaporation and salt precipitation in groundwater,” Opening Ceremony: DFG Research Training Group Urban Water Interfaces, TU Berlin, 08.09.2015, Berlin. Sep-2015.
  33. R. Helmig, “Darcy Lecture Series in Groundwater Science 2015: Modeling and analysis of soil-moisture processes in the subsurface: the influence of evaporation and salt precipitation in groundwater,” AQUA 2015 - 42nd IAH Congress, 13.09.2015 - 18.09.2015, Rom. Sep-2015.
  34. R. Helmig, “Darcy Lecture Series in Groundwater Science 2015: Numerical models for evaluating the competitive use of the subsurface: the influence of energy storage and production in groundwater,” Delft Advanced Reservoir Simulation Lunch & Learn, TU Delft, 25.09.2015, Delft, The Netherlands. Sep-2015.
  35. R. Helmig, “Darcy Lecture Series in Groundwater Science 2015: Numerical models for evaluating the competitive use of the subsurface: the influence of energy storage and production in groundwater,” Universitat Politècnica di València, 28.09.2015, Valencia. Sep-2015.
  36. R. Helmig, “Darcy Lecture Series in Groundwater Science 2015: Numerical models for evaluating the competitive use of the subsurface: the influence of energy storage and production in groundwater,” Geological Society of London, 05.10.2015, London, UK. Oct-2015.
  37. R. Helmig, “Darcy Lecture Series in Groundwater Science 2015: Modeling and analysis of soil-moisture processes in the subsurface: the influence of evaporation and salt precipitation in groundwater,” Journées MOMAS Multiphasiques 2015, 05.10.2015 - 07.10.2015, Nice, France. Oct-2015.
  38. R. Helmig, “Darcy Lecture Series in Groundwater Science 2015: Numerical models for evaluating the competitive use of the subsurface: the influence of energy storage and production in groundwater,” University of Vermont, 23.10.2015, Burlington, VT, USA. Oct-2015.
  39. R. Helmig, “Darcy Lecture Series in Groundwater Science 2015: Numerical models for evaluating the competitive use of the subsurface: the influence of energy storage and production in groundwater,” University of Western Ontario, 27.10.2015, London, ON, Canada. Oct-2015.
  40. R. Helmig, “Darcy Lecture Series in Groundwater Science 2015: Numerical models for evaluating the competitive use of the subsurface: the influence of energy storage and production in groundwater,” IAH-CNC 2015 Waterloo Conference, 27.10.2015 - 30.10.2015, Waterloo, Canada. Oct-2015.
  41. R. Helmig, “Darcy Lecture Series in Groundwater Science 2015: Modeling and analysis of soil-moisture processes in the subsurface: the influence of evaporation and salt precipitation in groundwater,” University of Waterloo, 29.10.2015, Waterloo, Canada. Oct-2015.
  42. R. Helmig, “Darcy Lecture Series in Groundwater Science 2015: Numerical models for evaluating the competitive use of the subsurface: the influence of energy storage and production in groundwater,” GSA 2015 Annual Meeting & Exposition, 01.11.2015 - 04.11.2015, Baltimore. Nov-2015.
  43. R. Helmig, “Darcy Lecture Series in Groundwater Science 2015: Numerical models for evaluating the competitive use of the subsurface: the influence of energy storage and production in groundwater,” Stanford University, 03.11.2015, Stanford, California, USA. Nov-2015.
  44. R. Helmig, “Darcy Lecture Series in Groundwater Science 2015: Modeling and analysis of soil-moisture processes in the subsurface: the influence of evaporation and salt precipitation in groundwater,” New Mexico Institute of Mining and Technology, 05.11.2015, Socorro, NM, USA. Nov-2015.
  45. R. Helmig, “Darcy Lecture Series in Groundwater Science 2015: Numerical models for evaluating the competitive use of the subsurface: the influence of energy storage and production in groundwater,” GeoEnviron-Seminar, Universität Tübingen, 13.11.2015, Tübingen. Nov-2015.
  46. R. Helmig, “Darcy Lecture Series in Groundwater Science 2015: Numerical models for evaluating the competitive use of the subsurface: the influence of energy storage and production in groundwater,” Universität Potsdam, 16.11.2015, Potsdam. Nov-2015.
  47. R. Helmig, “Darcy Lecture Series in Groundwater Science 2015: Modeling and analysis of soil-moisture processes in the subsurface: the influence of evaporation and salt precipitation in groundwater,” Universität Potsdam, 16.11.2015, Potsdam. Nov-2015.
  48. R. Helmig, “Darcy Lecture Series in Groundwater Science 2015: Numerical models for evaluating the competitive use of the subsurface: the influence of energy storage and production in groundwater,” Karlsruhe Institut für Technologie, 23.11.2015, Karlsruhe. Nov-2015.
  49. R. Helmig, “Darcy Lecture Series in Groundwater Science 2015: Numerical models for evaluating the competitive use of the subsurface: the influence of energy storage and production in groundwater,” Geological Survey of Ireland, 01.12.2015, Dublin. Dec-2015.
  50. R. Helmig, “Darcy Lecture Series in Groundwater Science 2015: Modeling and analysis of soil-moisture processes in the subsurface: the influence of evaporation and salt precipitation in groundwater,” Geological Survey of Ireland, 01.12.2015, Dublin. Dec-2015.
  51. R. Helmig, “Darcy Lecture Series in Groundwater Science 2015: Numerical models for evaluating the competitive use of the subsurface: the influence of energy storage and production in groundwater,” Distinguished Scientist Seminar Series, LBNL, 11.12.2015, Berkeley, USA. Dec-2015.
  52. R. Helmig, “Evaluating the competitive use of the subsurface: the influence of energy storage and production in groundwater,” 2015 AGU Fall Meeting, 14.12.2015 - 18.12.2015, San Francisco, USA. Dec-2015.
  53. R. Helmig, “Darcy Lecture Series in Groundwater Science 2015: Modeling and analysis of soil-moisture processes in the subsurface: the influence of evaporation and salt precipitation in groundwater,” 2015 NGWA Groundwater Expo and Annual Meeting, 14.12.2015 - 18.12.2015, Las Vegas, NV, USA. Dec-2015.
  54. B. Becker, B. Flemisch, R. Helmig, and M. Schneider, “Roads to success in porous media research: A workshop for future research leaders in the UK,” Roads to success in porous media research: A workshop for future research leader, 11.12.2014 - 12.12.2014, Edinburgh. Dec-2014.
  55. K. Mosthaf, T. Fetzer, B. Flemisch, and R. Helmig, “Modeling and analysis of the movement of fluid-fluid interfaces in porous media coupled with free flow,” International seminar: Dynamic processes in capillary fringes, 24.02.2014 - 25.02.2014, Karlsruhe. Feb-2014.
  56. R. Helmig and H. Class, “Konkurrierende Nutzung des Untergrunds - Risiken und Chancen, erklärt am Beispiel der CO2-Speicherung,” Wissenschaftsforum Rathaus - Samstags-Uni, 25.01.2014, Stuttgart. Jan-2014.
  57. R. Helmig, “Strömungs- und Transportvorgänge in porösen Medien - vom Grundwasser bis zur Brennstoffzelle,” Klassensitzung, math.-naturwiss. Klasse, Heidelberger Akademie d. Wissenschaften, 19.07.2013, Heidelberg. Jul-2013.
  58. R. Helmig, B. Faigle, and P. Nuske, “Gas-water flow and transport processes in fractured porous systems,” Forschungsseminar AG Ingenieurgeologie, ETH Zürich, 12.03.2013, Zürich. Mar-2013.
  59. R. Helmig, B. Faigle, B. Flemisch, and M. Wolff, “A decoupled model for compositional multiphase flow in porous media and multi-physics, multi-scale approaches for two-phase flow,” Shell Lecture Series, Rice University, Computational and Applied Mathematics, 18.02.2013, Houston, Texas, USA. Feb-2013.
  60. R. Helmig, K. Baber, K. Mosthaf, B. Flemisch, B. I. Wohlmuth, and T. Leijnse, “Modeling of compositional flow in coupled porous media-free flow domains,” CIW-Fakultätskolloquium, KIT, 08.01.2013, Karlsruhe. Jan-2013.
  61. R. Helmig, K. Baber, B. Flemisch, and B. I. Wohlmuth, “Compositional multi-phase flow in coupled porous-media and free-flow domains,” Oberseminar Numerische Mathematik / Scientific Computing, FU Berlin, 22.10.2012, Berlin. Oct-2012.
  62. R. Helmig, “Klimawandel und CO2 - kann CO2-Speicherung im Untergrund den Klimawandel abmildern?,” HIN-Kolloquium, Audi AG, 24.05.2012, Neckarsulm. May-2012.
  63. L. Walter, A. Kissinger, H. Class, S. Oladyshkin, and R. Helmig, “Methods for evaluating competitive use of the subsurface - for example, the influence of CCS in groundwater,” Exploratory Workshop: An integrated approach to water research and technology development, 03.05.2012 - 04.05.2012, TU München. May-2012.
  64. R. Helmig, “Modelling of complex porous media systems - from CO2 sequestration to evaporation at the soil-atmosphere interface,” Town Hall Meeting: Dynamic Earth - German Research Opportunities in Geosciences, 06.12.2011, San Francisco, USA. Dec-2011.
  65. K. Mosthaf, K. Baber, B. Flemisch, R. Helmig, and B. I. Wohlmuth, “Coupling two-phase compositional porous-medium and free flow,” , 30.11.2011, Rice University, Houston, USA. Nov-2011.
  66. R. Helmig, B. Faigle, B. Flemisch, and M. Wolff, “Efficient modeling of flow and transport in porous media using multiphysics and multiscale approaches,” Journées Scientifiques du GNR MoMaS, CIRM Marseille, 02.11.2011 - 04.11.2011, Marseille. Nov-2011.
  67. R. Helmig, B. Faigle, B. Flemisch, and J. Fritz, “Efficient modelling of multi-phase flow and transport in porous media using multi-physics and multi-scale approaches,” MAC Summer Workshop 2011: Munich Multiphysics Meeting, 13.07.2011, TU München. Jul-2011.
  68. R. Helmig, K. Baber, K. Mosthaf, B. Flemisch, B. I. Wohlmuth, and T. Leijnse, “Modeling of compositional flow in coupled porous-media - �free-flow domains,” GeoEnviron Seminar, Zentrum für Angewandte Geowissenschaften, 01.07.2011, Universität Tübingen. Jul-2011.
  69. R. Helmig, B. Faigle, B. Flemisch, J. Fritz, and J. Niessner, “Efficient modelling of multi-phase flow and transport in porous media using multi-physics and multi-scale approaches,” MATCH Workshop on Analytical and Numerical Methods for Multiscale Systems, 14.02.2011 - 17.02.2011, Heidelberg. Feb-2011.
  70. A. Ebigbo, H. Class, and R. Helmig, “Modelling of biofilm growth and its influence on CO2 and water (two-phase) flow in porous media,” SIAM Conference on Mathematical & Computational Issues in the Geosciences, 21.03.2011 - 24.03.2011, Long Beach, California, USA. Mar-2011.
  71. Y. Cao, M. Espedal, R. Helmig, and B. I. Wohlmuth, “A new corrected operator splitting method combining streamline approach for two-phase flow with gravity,” SIAM Conference on Mathematical & Computational Issues in the Geosciences, 21.03.2011 - 24.03.2011, Long Beach, California, USA. Mar-2011.
  72. R. Helmig, K. Baber, K. Mosthaf, B. Flemisch, B. I. Wohlmuth, and T. Leijnse, “Modeling of compositional flow in coupled porous-media - �free-flow domains,” Seminar am Fraunhofer Institut für Techno- und Wirtschaftsmathematik, Kaiserslautern, 28.01.2011, Kaiserslautern. Jan-2011.
  73. R. Helmig, K. Baber, B. Flemisch, K. Mosthaf, and B. I. Wohlmuth, “Modeling of compositional flow in coupled porous-media - �free-flow domains,” Coupling Dynamics of Multiphase Flows, Kick-Off-Treffen des IGSSE-Projekts, 22.10.2010, TU München. Oct-2010.
  74. R. Helmig, H. Class, J. Niessner, and B. Flemisch, “Porous media flow and transport processes: Bridging the gap between geo-, technical and bio- porous media systems. Relevant processes and methods,” Neues aus der Umwelttechnik und Infrastrukturplanung: IWAR-Vortragsreihe der TU Darmstadt, 22.11.2010, Darmstadt. Nov-2010.
  75. R. Helmig et al., “New coupling concept for multi-phase multi-component porous media and free flow,” Academy Colloquium: Multi-scale problems in sustainable resource management, 06.09.2010 - 09.09.2010, Amsterdam, The Netherlands. Sep-2010.
  76. R. Helmig, B. Flemisch, T. Leijnse, K. Mosthaf, I. Rybak, and B. I. Wohlmuth, “Modeling of compositional flow in coupled porous media - free-flow domains,” Workshop on Interfaces in Multiphase Flow, 01.07.2010 - 02.07.2010, Universität Stuttgart, Institut für Angewandte Analysis und Numerische Simulation. Jul-2010.
  77. R. Helmig, “Klimawandel und CO2: Kann CO2-Speicherung im Untergrund den Klimawandel abmildern?,” Tag der Wissenschaft, 26.06.2010, Universität Stuttgart. Jun-2010.
  78. R. Helmig, B. Flemisch, T. Leijnse, K. Mosthaf, I. Rybak, and B. I. Wohlmuth, “Modeling of compositional flow in coupled porous media - free-flow domains,” Gordon Research Conference Flow and Transport in Permeable Media 2010, 11.07.2010 - 16.07.2010, Bates College, Lewiston ME, USA. Jul-2010.
  79. R. Helmig, H. Class, B. Flemisch, A. Ebigbo, and M. Darcis, “Simulation of CO2 storaging in the subsurface hydrosystem,” , 30.06.2010, Montanuniversität Leoben. Jun-2010.
  80. Y. Cao, M. Espedal, R. Helmig, and B. I. Wohlmuth, “Corrected operator splitting combining streamline approach for porous media flow with gravity - Memorial Lecture dedicated to Magne Espedal,” 2th International Conference on Porous Media & Annual Meeting - InterPore 2010, 14.03.2010 - 17.03.2010, Texas A&M University. Jan-2010.
  81. H. Class, R. Helmig, A. Kopp, A. Ebigbo, M. Darcis, and L. Walter, “Simulation of CO2 storaging in the subsurface hydro-system,” Frontiers in Shallow Subsurface Technology, 20.01.2010 - 22.01.2010, Delft, The Netherlands. Jan-2010.
  82. R. Helmig, B. Flemisch, T. Leijnse, K. Mosthaf, I. Rybak, and B. I. Wohlmuth, “A new coupling concept for multi-phase, multi-component porous media flow and free flow,” Minisymposium “Two-phase flow in porous media”, 09.11.2009, Utrecht, The Netherlands. Nov-2009.
  83. R. Helmig, K. Baber, and K. Erbertseder, “40 Jahre DGMP - Festsymposium zum 40jährigen Jubiläum der Deutschen Gesellschaft für Medizinische Physik e.V.,” 40 Jahre DGMP - Festsymposium zum 40jährigen Jubiläum der Deutschen Gesellschaft für Medizinische Physik e.V., 06.11.2009, Berlin. Nov-2009.
  84. R. Helmig and I. Neuweiler, “Skalen und Skalierungen in der Wasserforschung,” Plenumssitzung der interdisziplinären Arbeitsgruppe “Globaler Wandel - Regionale Entwicklung” der Berlin-Brandenburgischen Akademie der Wissenschaften, 05.11.2009, Berlin. Nov-2009.
  85. R. Helmig, B. Flemisch, J. Fritz, J. Niessner, and M. Wolff, “A new multiscale approach for the simulation of multiphase flow processes in porous media,” ICP-Kolloquium, Institut für Computerphysik, 09.07.2009, Stuttgart. Jul-2009.
  86. R. Helmig, B. Flemisch, J. Fritz, J. Niessner, and M. Wolff, “A new multiscale approach for the simulation of multiphase flow processes in porous media,” SIAM Conference on Mathematical and Computational Issues in the Geosciences, 15.06.2009 - 18.06.2009, Leipzig. Jun-2009.
  87. R. Helmig, I. Neuweiler, and J. Niessner, “Complex gas-water processes in discrete fracture-matrix systems,” SIAM Conference on Mathematical and Computational Issues in the Geosciences, 15.06.2009 - 18.06.2009, Leipzig. Jun-2009.
  88. A. Assteerawatt, R. Helmig, H. Haegland, A. Bárdossy, and H. K. Dahle, “Simulation of flow and transport processes in a discrete fracture matrix system. Geostatistical generation of fractures on an aquifer analogue scale,” SIAM Conference on Mathematical and Computational Issues in the Geosciences, 15.06.2009 - 18.06.2009, Leipzig. Jun-2009.
  89. H. Class, K. Erbertseder, B. Flemisch, R. Helmig, J. Niessner, and M. Wolff, “Porous media flow and transport processes. Bridging the gap between geo-, technical- and bio-porous media systems, relevant processes, methods,” 1th International Conference on Porous Media & Annual Meeting - InterPore 2009, 11.03.2009 - 14.03.2009, Kaiserslautern. Mar-2009.
  90. R. Helmig, “Multi-scale multi-physics methods for flow and transport in porous media - towards an accurate and efficient modelling framework,” Kolloquium des Goethe-Zentrums für Wissenschaftliches Rechnen, Goethe-Universität Frankfurt. Apr-2009.
  91. H. Class, A. Kopp, A. Ebigbo, M. Darcis, and R. Helmig, “Carbon capture and hydrology in the GCC and in the EU,” The Sultan Qaboos Academic Chair Seminar: Quantitative Water Management - Relevant Contributions to Society and Science, 02.03.2009 - 02.03.2009, Utrecht, The Netherlands. Mar-2009.
  92. R. Helmig, B. Flemisch, J. Fritz, J. Niessner, and M. Wolff, “A new multiscale approach for the simulation of multiphase flow processes in porous media,” GAMM 2009. 80th Meeting of the International Association of Applied Mathematics and Mechanics, 09.02.2009 - 13.02.2009, Gdansk. Feb-2009.
  93. H. Class, M. Darcis, K. Erbertseder, and R. Helmig, “Transfer of modeling concepts for flow and transport processes in porous media from subsurface systems to biological tissues,” Systems Biology Seminar, Center Systems Biology Stuttgart. Jul-2008.
  94. R. Helmig, H. Jakobs, and I. Neuweiler, “Degassing processes in fractured matrix systems,” EUROMECH colloquium 499: Nonlinear Mechanics of Multiphase Flow in Porous Media: Phase Transitions, Instability, Non-Equilibrium, Modelling, 09.06.2008 - 12.06.2008, Nancy. Jun-2008.
  95. R. Helmig, H. Class, A. Kopp, A. Ebigbo, and M. Darcis, “Simulation of CO2 storaging in the subsurface hydrosystem,” IAHR International Groundwater Symposium: Flow and Transport in Heterogeneous Subsurface Formations: Theory, Modelling and Applications, 18.06.2008 - 20.06.2008, Istanbul. Jun-2008.
  96. R. Helmig, H. Class, M. Darcis, J. Niessner, B. Flemisch, and J. Fritz, “Multiphase flow and transport processes in porous media - from CO2 storaging to convection-enhanced delivery of therapeutic agents into brain tumors,” ASIM-Workshop: Grundlagen und Methoden der Modellbildung und Simulation, 18.02.2008 - 20.02.2008, Erlangen. Feb-2008.
  97. R. Helmig, B. Flemisch, J. Fritz, and J. Niessner, “Multiphysics concept for multiphase flow and transport processes in porous media,” Numerical discretization and upscaling methods, 01.11.2007 - 02.11.2007, Princeton, U.S.A. Nov-2007.
  98. S. O. Ochs, H. Class, and R. Helmig, “Flow and transport in porous media: modelling and simulation. Water management in polymer electrolyte membrane fuel cells,” Marie Curie workshop on Flow and transport in industrial porous media, 12.11.2007 - 16.11.2007, Utrecht, The Netherlands. Nov-2007.
  99. R. Helmig, J. Niessner, B. Flemisch, and J. Fritz, “A new multiscale approach for the simulation of multiphase flow processes in porous media,” Inaugural Conference on Computational Methods in Energy and Environmental Research, 09.07.2007 - 12.07.2007, Beijing, China. Jul-2007.
  100. R. Helmig, “Underground hydrosystems - groundwater sources, seawater intrusion and CO2 sequestration,” First Annual Doha Conference on Applied Mathematics and Computational Science, 20.05.2007 - 22.05.2007, Quatar. May-2007.

supervised student assignements

  1. Flow in unsaturated porous media: Numerical and experimental evaluation of the two-phase model and the Richards equation. (2012).
  2. Two phase flow in homogeneous porous media - The role of dynamic capillary pressure in modeling gravity driven fingering. (2011). (Diplomarbeit). Universität Stuttgart, Institut für Wasserbau.
  3. Modeling of infiltration processes in the unsaturated zone - switching of boundary condition from Neumann to Dirichlet -. (2010).
  4. Modelling biofilm distribution and its effect on two-phase flow in porous media. (2010). (Studienarbeit). Universität Stuttgart, Institut für Wasserbau.
  5. Numerical solution of Philip’s redistribution problem. (2009). (Diplomarbeit). Universität Stuttgart, Institut für Wasserbau.
  6. Implementation and Application of a Hysteresis Model for Multiphase Flow and Transport in Porous Media. (2008). (Diplomarbeit). Universität Stuttgart, Institut für Wasserbau.
  7. A double-continuum approach for two-phase flow in macroporous media: Parameter study and applications. (2008). (Diplomarbeit). Universität Stuttgart, Institut für Wasserbau, Lehrstuhl für Hydromechanik und Hydrosystemmodellierung.
  8. Beschreibung und Quantifizierung der Wechselwirkungen zwischen Grundwasserkörper, Baggersee und Drainagegräben im Rahmen einer 3D Strömungs- und Transportmodellierung. (2008). (Diplomarbeit). Universität Stuttgart, Institut für Wasserbau.
  9. Implementation of a Stochastic Wind Model into the Virtual WaterWay (VWW) Program. (2007).
  10. Numerical Investigations of Flow through Fractured Porous Media. (2007).
  11. Simulation der Wasserqualität im Bodensee mit Hilfe eines dreidimensionalen Modells. (2007). (Diplomarbeit). Stuttgart, Institut für Wasserbau, Lehrstuhl für Hydromechanik und Hydrosystemmodellierung.
  12. The development of a single phase multicomponent model with sorption for the analysis of methane migration from subsurface coal seams. (2007).
  13. The influende on mixing in a lake of an internal boundary layer for the wind. (2007).
  14. Experimental and numerical investigations on steam injection in saturated soils. (2005).
  15. Modeling of Mine Gas Repositories. (2004).
  16. Modeling of Natural Attenuation: Evaluation of Available Codes. (2004).
  17. Influence of the Interface Condition and Exact Linearization in the Newton Iterations for Two-Phase Flow in Heterogeneous Porous Media. (2003). (Diplomarbeit). Universität Stuttgart, Institut für Wasserbau, Lehrstuhl für Hydromechanik und Hydrosystemmodellierung.
  18. Assessment of technical, ecological and economic implications for the use of ethanol instead of Methyl tert-Butyl Ether (MTBE) as oxygenate and octane booster in gasoline. (2001).
  19. Predictive modeling of a field scale DNAPL remediation by steam injection. (2000).
  20. Numerische Untersuchungen zum Gas-Wasser-Verhalten in einem Stollen mit Verschlußbauwerk. (1997). (Diplomarbeit). Universität Stuttgart, Institut für Wasserbau.
  21. Kopplung von FE-/FV-Methoden zur numerischen Simulation von Zweiphasenströmungen in heterogenen, porösen Medien. (1995). (Diplomarbeit). Universität Stuttgart, Institut für Wasserbau.
  22. Simulation von Zweiphasenströmungen im Untergrund mit Hilfe einer adaptiven Finite-Element-Formulierung. (1993). (Diplomarbeit). Universität Stuttgart, Institut für Wasserbau.