Contact
+49 711 685 64741
+49 711 685 60430
Email
Business card (VCF)
Pfaffenwaldring 61
70569 Stuttgart
Germany
Room: 1.006
- Multiphase Modelling in Porous Media (Lecture with Exercises)
- Fluidmechanik II (Lecture with Exercises)
- Numerische Methoden der Fluidmechanik (Lecture with Exercises)
- Ringvorlesung Simulationstechnologien (Lecture)
- Einführung in die Modellierung (Lecture)
- Simulationstechnik A (Lecture with Exercises)
Career
Since 2024: Emeritus, Institute for Modelling Hydraulic and Environmental Systems, University of Stuttgart
2000-2024: Full Professor, Institute for Modelling Hydraulic and Environmental Systems, University of Stuttgart
1998-2020: Full Professor, Institute of Computer Applications in Civil Engineering, TU Braunschweig
1997-1998: Acting Professor, Institute of Computer Applications in Civil Engeneering, TU Braunschweig
1993-1997: Research Assistant, Institute of Hydraulic Engineering, University of Stuttgart
1988-1992: Research Assistant, Institute of Fluid Mechanics, University of Hannover
1986-1988: Ingenieur, Land Nordrhein-Westfalen
Academic Degrees
1996: Habilitation degree (Dr.-Ing. habil.), University of Stuttgart
1993: Doctoral degree (Dr.-Ing.), University of Hannover
1986: Graduation in Civil Engeneering (Dipl.-Ing.), University of Hannover
1981: Graduation in Civil Engineering (Dipl.-Ing. (FH)), University of Applied Sciences, Münster
1995: Dresden Prize for Groundwater Research
2008: Teaching award for lectures in Hydromechanics, University of Stuttgart
since 2010: Elected member of the Heidelberg Academy of Sciences and Humanities
2012: NOW-von Humboldt Stiftung award
2013: Shell lecture 2013, Rice University, Houston, USA
2013: InterPore-Rosette, International Society for Porous Media
2015: Henry Darcy Distinguished Lecturer, National Groundwater Association (NGWA)
since 2017: Elected member of the German Academy of Science and Engineering
2019: Honorary Lifetime Membership Award, International Society for Porous Media (InterPore)
2019 – 2022: Magne Espedal Honorary Professor at the University of Bergen, Norway
2020: AGU Fellow 2020, American Geophysical Union
2021 – 2024: Research Professorship, University of Stuttgart
2022: Honorary Degree of Doctor of Engineering, Heriot-Watt University, United Kingdom
2022: Elected member of the Academia Europaea, The Academy of Europe
2024: Kimberly-Clark Distinguished Lecturer 2025, International Society for Porous Media
since 1999: Member of the Editorial Board of "Advances in Water Research"
since 2007: Member of the Editorial Board of "Computational Geosciences"
since 2009: Course Coordinator of the study program "Simulation Technology" at the University of Stuttgart
2018-2021: Member of the Executive Board of the Cluster of Excellence EXC 2075 “Data-integrated Simulation Science” (Simtech) at the University of Stuttgart
2018-2023: Spokesperson of the Collaborative Research Centre (SFB) 1313 “Interface-Driven Multi-Field Processes in Porous Media: Flow, Transport and Deformation”, University of Stuttgart
since 2018: Principal investigator of the Cluster of Excellence EXC 2075 “Data-integrated Simulation Science” (Simtech) at the University of Stuttgart
since 2018: Principal Investigator of the Collaborative Research Centre (SFB) 1313 “Interface-Driven Multi-Field Processes in Porous Media: Flow, Transport and Deformation”, University of Stuttgart
Publications
(Journal-) Articles
- Vahabzadeh, E., Buntic, I., Nazari, F., Flemisch, B., Helmig, R., & Niasar, V. (2025). Applicability of the Vertical Equilibrium model to underground hydrogen injection and withdrawal. International Journal of Hydrogen Energy, 106, 790–805. https://doi.org/10.1016/j.ijhydene.2025.01.201
- Aricò, C., Helmig, R., Puleo, D., & Schneider, M. (2024). A new numerical mesoscopic scale one-domain approach solver for free fluid/porous medium interaction. Computer Methods in Applied Mechanics and Engineering, 419, 116655. https://doi.org/10.1016/j.cma.2023.116655
- Veyskarami, M., Bringedal, C., & Helmig, R. (2024). Modeling and Analysis of Droplet Evaporation at the Interface of a Coupled Free-Flow--Porous Medium System. Transport in Porous Media. https://doi.org/10.1007/s11242-024-02123-7
- Schneider, J., Kiemle, S., Heck, K., Rothfuss, Y., Braud, I., Helmig, R., & Vanderborght, J. (2024). Analysis of experimental and simulation data of evaporation-driven isotopic fractionation in unsaturated porous media. Vadose Zone Journal, 23, Article 5. https://doi.org/10.1002/vzj2.20363
- Schollenberger, T., von Wolff, L., Bringedal, C., Pop, I. S., Rohde, C., & Helmig, R. (2024). Investigation of Different Throat Concepts for Precipitation Processes in Saturated Pore-Network Models. Transport in Porous Media, 151, Article 14. https://doi.org/10.1007/s11242-024-02125-5
- Boon, W. M., Gläser, D., Helmig, R., Weishaupt, K., & Yotov, I. (2024). A mortar method for the coupled Stokes-Darcy problem using the MAC scheme for Stokes and mixed finite elements for Darcy. Computational Geosciences, 28, Article 3. https://doi.org/10.1007/s10596-023-10267-6
- Tatomir, A., Gao, H., Abdullah, H., Pötzl, C., Karadimitriou, N., Steeb, H., Licha, T., Class, H., Helmig, R., & Sauter, M. (2023). Estimation of Capillary-Associated NAPL-Water Interfacial Areas for Unconsolidated Porous Media by Kinetic Interface Sensitive (KIS) Tracer Method. Water Resources Research, 59, Article 12. https://doi.org/10.1029/2023WR035387
- Veyskarami, M., Michalkowski, C., Bringedal, C., & Helmig, R. (2023). Droplet Formation, Growth and Detachment at the Interface of a Coupled Free-FLow--Porous Medium System: A New Model Development and Comparison. Transport in Porous Media, 149, 389–419. https://doi.org/10.1007/s11242-023-01944-2
- Wu, H., Veyskarami, M., Schneider, M., & Helmig, R. (2023). A New Fully Implicit Two-Phase Pore-Network Model by Utilizing Regularization Strategies. Transport in Porous Media. https://doi.org/10.1007/s11242-023-02031-2
- Kiemle, S., Heck, K., Coltman, E., & Helmig, R. (2023). Stable Water Isotopologue Fractionation During Soil-Water Evaporation: Analysis Using a Coupled Soil-Atmosphere Model. Water Resources Research, 59, Article 2. https://doi.org/10.1029/2022WR032385
- Ackermann, S., Fest-Santini, S., Veyskarami, M., Helmig, R., & Santini, M. (2023). Experimental validation of a coupling concept for drop formation and growth onto porous materials by high-resolution X-ray imaging technique. International Journal of Multiphase Flow, 160. https://doi.org/10.1016/j.ijmultiphaseflow.2022.104371
- Schneider, M., Gläser, D., Weishaupt, K., Coltman, E., Flemisch, B., & Helmig, R. (2023). Coupling staggered-grid and vertex-centered finite-volume methods for coupled porous-medium free-flow problems. Journal of Computational Physics, 482, 112042. https://doi.org/10.1016/j.jcp.2023.112042
- Boon, W. M., Gläser, D., Helmig, R., & Yotov, I. (2023). Flux-mortar mixed finite element methods with multipoint flux approximation. Computer Methods in Applied Mechanics and Engineering, 405, 115870. https://doi.org/10.1016/j.cma.2022.115870
- Bringedal, C., Schollenberger, T., Pieters, G. J. M., van Duijn, C. J., & Helmig, R. (2022). Evaporation-Driven Density Instabilities in Saturated Porous Media. Transport in Porous Media, 143, Article 2. https://doi.org/10.1007/s11242-022-01772-w
- Michalkowski, C., Weishaupt, K., Schleper, V., & Helmig, R. (2022). Modeling of Two Phase Flow in a Hydrophobic Porous Medium Interacting with a Hydrophilic Structure. Transport in Porous Media, 144, Article 2. https://doi.org/10.1007/s11242-022-01816-1
- Boon, W. M., Gläser, D., Helmig, R., & Yotov, I. (2022). Flux-Mortar Mixed Finite Element Methods on NonMatching Grids. SIAM Journal on Numerical Analysis, 60, Article 3. https://doi.org/10.1137/20M1361407
- Younes, A., Hoteit, H., Helmig, R., & Fahs, M. (2022). A robust upwind mixed hybrid finite element method for transport in variably saturated porous media. Hydrology and Earth System Sciences, 26, Article 20. https://doi.org/10.5194/hess-26-5227-2022
- Tsinober, A., Rosenzweig, R., Class, H., Helmig, R., & Shavit, U. (2022). The Role of Mixed Convection and Hydrodynamic Dispersion During CO2 Dissolution in Saline Aquifers: A Numerical Study. Water Resources Research, 58, Article 3. https://doi.org/10.1029/2021WR030494
- Wang, W., Lozano-Durán, A., Helmig, R., & Chu, X. (2022). Spatial and spectral characteristics of information flux between turbulent boundary layers and porous media. Journal of Fluid Mechanics, 949. https://doi.org/10.1017/jfm.2022.770
- Becker, B., Guo, B., Buntic, I., Flemisch, B., & Helmig, R. (2022). An Adaptive Hybrid Vertical Equilibrium/Full-Dimensional Model for Compositional Multiphase Flow. Water Resources Research, 58, Article 1. https://doi.org/10.1029/2021WR030990
- Younes, A., Hoteit, H., Helmig, R., & Fahs, M. (2022). A robust fully mixed finite element model for flow and transport in unsaturated fractured porous media. Advances in Water Resources, 166, 104259. https://doi.org/10.1016/j.advwatres.2022.104259
- Michalkowski, C., Veyskarami, M., Bringedal, C., Helmig, R., & Schleper, V. (2022). Two-phase Flow Dynamics at the Interface Between GDL and Gas Distributor Channel Using a Pore-Network Model. Transport in Porous Media, 144, Article 2. https://doi.org/10.1007/s11242-022-01813-4
- Eller, J., Sauerborn, T., Becker, B., Buntic, I., Gross, J., & Helmig, R. (2022). Modeling Subsurface Hydrogen Storage With Transport Properties From Entropy Scaling Using the PC-SAFT Equation of State. Water Resources Research, 58, Article 4. https://doi.org/10.1029/2021WR030885
- Weishaupt, K., Koch, T., & Helmig, R. (2022). A fully implicit coupled pore-network/free-flow model for the pore-scale simulation of drying processes. Drying Technology, 40, Article 4. https://doi.org/10.1080/07373937.2021.1955706
- Weishaupt, K., Koch, T., & Helmig, R. (2021). A fully implicit coupled pore-network/free-flow model for the pore-scale simulation of drying processes. Drying Technology, 0, Article 0. https://doi.org/10.1080/07373937.2021.1955706
- Kurgyis, K., Hommel, J., Flemisch, B., Helmig, R., & Ott, H. (2021). Explicit continuum scale modeling of low-salinity mechanisms. Journal of Petroleum Science and Engineering, 199, 108336. https://doi.org/10.1016/j.petrol.2020.108336
- Wang, W. (., Yang, G. (., Evrim, C., Terzis, A., Helmig, R., & Chu, X. (. (2021). An assessment of turbulence transportation near regular and random permeable interfaces. Physics of Fluids, 33, Article 11. https://doi.org/10.1063/5.0069311
- Schneider, J., Groh, J., Pütz, T., Helmig, R., Rothfuss, Y., Vereecken, H., & Vanderborght, J. (2021). Prediction of soil evaporation measured with weighable lysimeters using the FAO Penman–Monteith method in combination with Richards’ equation. Vadose Zone Journal, 20, Article 1. https://doi.org/10.1002/vzj2.20102
- Ackermann, S., Bringedal, C., & Helmig, R. (2021). Multi-scale three-domain approach for coupling free flow and flow in porous media including droplet-related interface processes. Journal of Computational Physics, 429, 109993. https://doi.org/10.1016/j.jcp.2020.109993
- Gao, B., Coltman, E., Farnsworth, J., Helmig, R., & Smits, K. M. (2021). Determination of Vapor and Momentum Roughness Lengths Above an Undulating Soil Surface Based on PIV-Measured Velocity Profiles. Water Resources Research, 57, Article 7. https://doi.org/10.1029/2021WR029578
- Chu, X., Wang, W., Yang, G., Terzis, A., Helmig, R., & Weigand, B. (2021). Transport of Turbulence Across Permeable Interface in a Turbulent Channel Flow: Interface-Resolved Direct Numerical Simulation. Transport in Porous Media, 136, Article 1. https://doi.org/10.1007/s11242-020-01506-w
- Wang, W., Chu, X., Lozano-Durán, A., Helmig, R., & Weigand, B. (2021). Information transfer between turbulent boundary layers and porous media. Journal of Fluid Mechanics, 920, A21. https://doi.org/10.1017/jfm.2021.445
- Koch, T., Weishaupt, K., Müller, J., Weigand, B., & Helmig, R. (2021). A (Dual) Network Model for Heat Transfer in Porous Media. Transport in Porous Media, 140, Article 1. https://doi.org/10.1007/s11242-021-01602-5
- Ahmadi, N., Heck, K., Rolle, M., Helmig, R., & Mosthaf, K. (2021). On multicomponent gas diffusion and coupling concepts for porous media and free flow: a benchmark study. Computational Geosciences, 25, Article 5. https://doi.org/10.1007/s10596-021-10057-y
- Schneider, M., Weishaupt, K., Gläser, D., Boon, W. M., & Helmig, R. (2020). Coupling staggered-grid and MPFA finite volume methods for free flow/porous-medium flow problems. Journal of Computational Physics, 401. https://doi.org/10.1016/j.jcp.2019.109012
- Seitz, G., Helmig, R., & Class, H. (2020). A numerical modeling study on the influence of porosity changes during thermochemical heat storage. Applied Energy, 259, 114152. https://doi.org/10.1016/j.apenergy.2019.114152
- de Winter, M., Weishaupt, K., Scheller, S., Frey, S., Raoof, A., Hassanizadeh, M., & Helmig, R. (2020). The Complexity of Porous Media Flow Characterized in a Microfluidic Model Based on Confocal Laser Scanning Microscopy and Micro-PIV. Transport in Porous Media. https://doi.org/10.1007/s11242-020-01515-9
- Ghosh, T., Bringedal, C., Helmig, R., & Sekhar, G. P. R. (2020). Upscaled equations for two-phase flow in highly heterogeneous porous media: Varying permeability and porosity. Advances in Water Resources, 145, 103716. https://doi.org/10.1016/j.advwatres.2020.103716
- Heck, K., Coltman, E., Schneider, J., & Helmig, R. (2020). Influence of Radiation on Evaporation Rates: A Numerical Analysis. Water Resources Research, 56, Article 10. https://doi.org/10.1029/2020WR027332
- Koch, T., Flemisch, B., Helmig, R., Wiest, R., & Obrist, D. (2020). A multi-scale sub-voxel perfusion model to estimate diffusive capillary wall conductivity in multiple sclerosis lesions from perfusion MRI data. International Journal for Numerical Methods in Biomedical Engineering, 36, Article 2. https://doi.org/10.1002/cnm.3298
- Koch, T., Schneider, M., Helmig, R., & Jenny, P. (2020). Modeling tissue perfusion in terms of 1d-3d embedded mixed-dimension coupled problems with distributed sources. Journal of Computational Physics, 410, 109370. https://doi.org/10.1016/j.jcp.2020.109370
- Koch, T., Helmig, R., & Schneider, M. (2020). A new and consistent well model for one-phase flow in anisotropic porous media using a distributed source model. Journal of Computational Physics, 410, 109369. https://doi.org/10.1016/j.jcp.2020.109369
- Weishaupt, K., Terzis, A., Zarikos, I., Yang, G., Flemisch, B., de Winter, D. A. M., & Helmig, R. (2020). A Hybrid-Dimensional Coupled Pore-Network/Free-Flow Model Including Pore-Scale Slip and Its Application to a Micromodel Experiment. Transport in Porous Media, 135, Article 1. https://doi.org/10.1007/s11242-020-01477-y
- Coltman, E., Lipp, M., Vescovini, A., & Helmig, R. (2020). Obstacles, Interfacial Forms, and Turbulence: A Numerical Analysis of Soil-Water Evaporation Across Different Interfaces. Transport in Porous Media, 134, Article 2. https://doi.org/10.1007/s11242-020-01445-6
- Shokri-Kuehni, S. M. S., Raaijmakers, B., Kurz, T., Or, D., Helmig, R., & Shokri, N. (2020). Water Table Depth and Soil Salinization: From Pore-Scale Processes to Field-Scale Responses. Water Resources Research, 56, Article 2. https://doi.org/10.1029/2019WR026707
- Bahlmann, L. M., Smits, K. M., Heck, K., Coltman, E., Helmig, R., & Neuweiler, I. (2020). Gas Component Transport Across the Soil-Atmosphere Interface for Gases of Different Density: Experiments and Modeling. Water Resources Research, 56, Article 9. https://doi.org/10.1029/2020WR027600
- Gläser, D., Flemisch, B., Class, H., & Helmig, R. (2020). Frackit: a framework for stochastic fracture network generation and analysis. Journal of Open Source Software, 5. https://doi.org/10.21105/joss.02291
- 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, 100011. https://doi.org/10.1016/j.jcpx.2019.100011
- Yang, G., Terzis, A., Zarikos, I., Hassanizadeh, S. M., Weigand, B., & Helmig, R. (2019). Internal flow patterns of a droplet pinned to the hydrophobic surfaces of a confined microchannel using micro-PIV and VOF simulations. Chemical Engineering Journal, 370, 444–454. https://doi.org/10.1016/j.cej.2019.03.191
- Bilke, L., Flemisch, B., Kalbacher, T., Kolditz, O., Helmig, R., & Nagel, T. (2019). Development of Open-Source Porous Media Simulators: Principles and Experiences. Transport in Porous Media, 130, Article 1. https://doi.org/10.1007/s11242-019-01310-1
- Gläser, D., Flemisch, B., Helmig, R., & Class, H. (2019). A hybrid-dimensional discrete fracture model for non-isothermal two-phase flow in fractured porous media. GEM - International Journal on Geomathematics, 10, Article 1. https://doi.org/10.1007/s13137-019-0116-8
- 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
- Zhuang, L., Hassanizadeh, S. M., van Duijn, C. J., Zimmermann, S., Zizina, I., & Helmig, R. (2019). Experimental and Numerical Studies of Saturation Overshoot during Infiltration into a Dry Soil. Vadose Zone Journal, 18, Article 1. https://doi.org/10.2136/vzj2018.09.0167
- Mitra, K., Köppl, T., Duijn, H. v., Pop, I. S., & Helmig, R. (2019). Fronts in two-phase porous media flow problems: the effects of hysteresis and dynamic capillarity. Studies in Applied Mathematics, 1906. https://research.tue.nl/en/publications/fronts-in-two-phase-porous-media-flow-problems-the-effects-of-hys
- Vidotto, Ettore., Koch, Timo., Köppl, Tobias., Helmig, Rainer., & Wohlmuth, Barbara. (2019). Hybrid Models for Simulating Blood Flow in Microvascular Networks. Multiscale Modeling & Simulation, 17, Article 3. https://doi.org/10.1137/18M1228712
- 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
- Terzis, A., Zarikos, I., Weishaupt, K., Yang, G., Chu, X., Helmig, R., & Weigand, B. (2019). Microscopic velocity field measurements inside a regular porous medium adjacent to a low Reynolds number channel flow. Physics of Fluids, 31, Article 4. https://doi.org/10.1063/1.5092169
- Schneider, M., Gläser, D., Flemisch, B., & Helmig, R. (2018). Comparison of finite-volume schemes for diffusion problems. Oil & Gas Science and Technology – Revue d’IFP Energies Nouvelles, 73. https://ogst.ifpenergiesnouvelles.fr/articles/ogst/pdf/2018/01/ogst180050.pdf
- 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
- 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, Article 3. https://doi.org/10.1007/s11242-017-0977-y
- 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
- Vidotto, E., Helmig, R., Schneider, M., & Wohlmuth, B. (2018). Streamline method for resolving sharp fronts for complex two-phase flow in porous media. Computational Geosciences, 22, Article 6. https://doi.org/10.1007/s10596-018-9767-z
- Schneider, M., Flemisch, B., Helmig, R., Terekhov, K., & Tchelepi, H. (2018). Monotone nonlinear finite-volume method for challenging grids. Computational Geosciences. https://doi.org/10.1007/s10596-017-9710-8
- 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
- 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
- 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
- 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
- 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
- Terzis, A., Roumeli, E., Weishaupt, K., Brack, S., Aslannejad, H., Groß, J., Hassanizadeh, S. M., Helmig, R., & 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
- 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
- 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
- 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
- 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
- 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
- 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, Article 2. https://doi.org/10.1002/2016WR019983
- 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, Article 2. https://doi.org/10.1002/2016WR019982
- Neuweiler, I., & Helmig, R. (2017). Debates - Hypothesis testing in hydrology: a subsurface perspective. Water Resources Research, 53. https://doi.org/1002/2016WR020047
- 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.
- Schneider, M., Flemisch, B., & Helmig, R. (2017). Monotone nonlinear finite-volume method for nonisothermal two-phase two-component flow in porous media. International Journal for Numerical Methods in Fluids, 84, Article 6. https://doi.org/10.1002/fld.4352
- 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
- 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.
- 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
- 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
- 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
- Gläser, D., Dell’Oca, A., Tatomir, A., Bensabat, J., Class, H., Guadagnini, A., Helmig, R., McDermott, C., Riva, M., & Sauter, M. (2016). An Approach Towards a FEP-based Model for Risk Assessment for Hydraulic Fracturing Operations. Energy Procedia, 97, 387–394. https://doi.org/10.1016/j.egypro.2016.10.030
- 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. https://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/2014/SimTech_Preprint_Baber2014.pdf
- 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, Article 2. https://doi.org/10.1007/s11242-015-0617-3
- 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, Article 70.
- Fetzer, T., Smits, K. M., & Helmig, R. (2016). Effect of Turbulence and Roughness on Coupled Porous-Medium/Free-Flow Exchange Processes. Transport in Porous Media, 114, Article 2. https://doi.org/10.1007/s11242-016-0654-6
- 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
- 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
- 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.
- Hommel, J., Lauchnor, E., Phillips, A., Gerlach, R., Cunningham, A. B., Helmig, R., Ebigbo, A., & Class, H. (2015). A revised model for microbially induced calcite precipitation: Improvements and new insights based on recent experiments. Water Resources Research, 51, Article 5. https://doi.org/10.1002/2014WR016503
- 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
- Schwenck, N., Flemisch, B., Helmig, R., & Wohlmuth, B. I. (2015). Dimensionally reduced flow models in fractured porous media: crossings and boundaries. Computational Geosciences, 19, Article 6. https://doi.org/10.1007/s10596-015-9536-1
- Nuske, P., Ronneberger, O., Karadimitriou, N., Helmig, R., & Hassanizadeh, S. M. (2015). Modelling Multi-Phase Flow in a Micro-Model with Local Thermal Non-Equilibrium on the Darcy Scale. International Journal of Heat and Mass Transfer, 88.
- Faigle, B., Elfeel, M. A., Helmig, R., Becker, B., Flemisch, B., & Geiger, S. (2015). Multi-physics modeling of non-isothermal compositional flow on adaptive grids. Computational Methods in Applied Mechanical Engineering, 292. https://doi.org/10.1016/j.cma.2014.11.030
- Tatomir, A., Schaffer, M., Kissinger, A., Hommel, J., Nuske, P., Licha, T., Helmig, R., & Sauter, M. (2015). Novel approach for modeling kinetic interface-sensitive (KIS) tracers with respect to time-dependent interfacial area change for the optimization of supercritical carbon dioxide injection into deep saline aquifers. International Journal of Greenhouse Gas Control, 33. https://doi.org/10.1016/j.ijggc.2014.11.020
- 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.
- 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
Talks
- R. Helmig, “Vom Gehirn zum Energiespeicher: Poröse Medien sind überall,” VHS Stuttgart: Fragen an die Wissenschaft, 13.11.2018, Stuttgart. Nov. 2018.
- 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.
- R. Helmig, “Simulationen: die Welt besser verstehen? Strömung und Transport in porösen Medien,” Mintnight, Dietrich-Bonhoeffer-Gymnasium, 20.07.2018, Filderstadt. Jul. 2018.
- R. Helmig, “Grundwasser im Spannungsfeld konkurrierender Nutzungen des Untergrundes,” Ringvorlesung IZKT: Wasser: Lebensraum, Sehnsuchtsort, Ressource, 11.06.2018, Stuttgart. Jun. 2018.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- R. Helmig and H. Class, “Kann Wasser den Berg hoch fließen?,” Kinderuni Weil der Stadt, 14.04.2016, Weil der Stadt. Apr. 2016.
- 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.
- R. Helmig, “Numerical models for evaluating the competitive use of the subsurface: the influence of energy storage and production in groundwater,” Lions Club Herrenberg, 15.02.2016, Herrenberg. Feb. 2016.
- 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.
- 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.
- R. Helmig, “Der Weg zum Wassernetzwerk Baden-Württemberg,” Auftaktveranstaltung des Netzwerks Wasserforschung Baden-Württemberg, 14.01.2016, Stuttgart. Jan. 2016.
- 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.
- 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.
- 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 British Columbia, 22.05.2015, Vancouver, Canada. May 2015.
- 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,” Seminar, EAWAG, 07.05.2015, Dübendorf, Schweiz. May 2015.
- 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.
- 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.
- 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.
- 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,” King Abdullah University of Science and Technology, 15.02.2015, Thuwal. Feb. 2015.
- 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,” Geoökologisches Kolloquium, TU Braunschweig, 22.01.2015, Braunschweig. Jan. 2015.
- 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,” Los Alamos National Laboratory, 23.03.2015, Los Alamos, USA. Mar. 2015.
- 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,” Baylor University, 19.03.2015, Waco, USA. Mar. 2015.
- 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,” Southwest Research Institute, 18.03.2015, San Antonio, USA. Mar. 2015.
- 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.
- 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.
- 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.
- 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.
- 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 Kansas, 20.05.2015, Lawrence, Kansas, USA. May 2015.
- 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 Illinois, 18.05.2015, Urbana-Champaign, USA. May 2015.
- 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 Clemson Hydrogeology Symposium, 26.03.2015, Clemson University, USA. Mar. 2015.
- 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.
- 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.
- 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.
- 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 California, 28.05.2015, Santa Barbara, California. May 2015.
- 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,” Seminar, Politecnico di Torino, 03.03.2015, Torino. Mar. 2015.
- 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,” Seminar, Politecnico di Torino, 03.03.2015, Torino. Mar. 2015.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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,” Portland State University, 26.05.2015, Portland, USA. May 2015.
- 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.
- 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,” Eindhoven Multiscale Institute Colloquium, 22.04.2015, Eindhoven University of Technology. Apr. 2015.
- 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.
- 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 North Carolina at Chapel Hill, 24.03.2015, Chapel Hill, North Carolina, USA. Mar. 2015.
- 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.
- 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.
- 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.
- 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,” Vortragsreihe Grundwasser, Hochschule Heilbronn, 14.01.2015, Heilbronn. Jan. 2015.
- 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.
- 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.
- 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.
- 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.
- 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,” Seminar, Université de Neuchatel, 08.05.2015, Neuchatel. May 2015.
- 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,” Seminar, IFP Energies nouvelles, 16.04.2015, Rueil Malmaison. Apr. 2015.
- 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.
- 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.
- 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,” Seminar, Heriot Watt University, 10.04.2015, Edinburgh. Apr. 2015.
- 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,” Spring 2015 Geological Sciences Seminar, 30.03.2015, Gainesville, USA. Mar. 2015.
- 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.
- 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,” Oregon State University, 27.05.2015, Corvallis, USA. May 2015.
- 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.
- 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 NGWA Groundwater Summit, 16.03.2015 - 18.03.2015, San Antonio, USA. Mar. 2015.
- 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.
- 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.
- 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.
- 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 Bergen, 11.05.2015, Bergen, Norway. May 2015.
- 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.
- 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,” Seminar, Université de Lausanne, 20.04.2015, Lausanne, Switzerland. Apr. 2015.
- 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.
- 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.
- 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,” Seminar, Princeton University, 31.03.2015, Princeton, U.S.A. Mar. 2015.
- 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.
- 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,” Seminar, Université de Rennes, 25.02.2015, Rennes, Frankreich. Feb. 2015.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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. [Online]. Available: https://www.sciencedirect.com/science/article/pii/S0045782514004630
- R. Helmig, “Klimawandel und CO2 - kann CO2-Speicherung im Untergrund den Klimawandel abmildern?,” HIN-Kolloquium, Audi AG, 24.05.2012, Neckarsulm. May 2012.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
Current research projects
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TrinkXtrem: Adaptation strategies of public drinking water supply to extreme events
Duration: 02/2022 - 01/2025
Department: LH2
Leader: Rainer Helmig, Holger Class
Funding: BMBF -
EXC 2075: Coupled flow, transport, and geochemical processes in fractures/fissures with a focus on geothermal and karstic systems
Duration: 10/2021 - 12/2024
Department: LH2
Leader: Rainer Helmig, Holger Class, Bernd Flemisch
Funding: DFG -
SFB1313, C02: Upscaling of pore-scale processes involving microstructural evolution
Duration: 01/2018 - 12/2025
Departments: LH2 und IANS
Leaders: Rainer Helmig, Christian Rohde, luliu Sorin Pop
Funding: DFG -
SFB 1313, A02: Advanced modelling concepts for coupling free flow with porous-media flow
Duration: 01/2018 - 12/2025
Departments: LH2 and ITLR
Leaders: Rainer Helmig, Bernhard Weigand
Funding: DFG -
GRK 2160 Dropit: Upscaling of coupled free-flow and porous-media-flow processes
Duration: 10/2016 - 09/2025
Department: LH2
Leader: Rainer Helmig, Carina Bringedal
Funding: DFG