Dieses Bild zeigt  Holger Class

Herr apl. Prof. Dr.-Ing.

Holger Class

Stellvertreter des Lehrstuhlinhabers
Institut für Wasser- und Umweltsystemmodellierung
Lehrstuhl für Hydromechanik und Hydrosystemmodellierung

Kontakt

+49 711 685-64678
+49 711 685-60430

Visitenkarte (VCF)

Pfaffenwaldring 61
70569 Stuttgart
Deutschland
Raum: 1.012

Sprechstunde

Nach Vereinbarung

Fluidmechanik 1 I Modul
Fluidmechanik 2 I Modul
Environmental Fluid Mechanics 1 I Modul
Mehrphasenmodellierung in porösen Medien IModul

Abitur

Juni 1991 in Münsingen

Akademische Grade

1997: Diplom im Bauingenieurwesen (Dipl.-Ing), Universität Stuttgart
2000: Promotion (Dr.-Ing.), Technische Universität Braunschweig
2008: Habilitation (Dr.-Ing. habil.), Universität Stuttgart

Akademischer Werdegang

1998 - 2000: akademischer Mitarbeiter, Institut für Computeranwendungen, Technische Universität Braunschweig
2000 - 2004: akademischer Mitarbeiter, Institut für Wasser- und Umweltsystemmodellierung, Universität Stuttgart
seit 2004: Akademischer Rat, Institut für Wasser- und Umweltsystemmodellierung, Universität Stuttgart
2011: Ernennung zum außerplanmäßigen Professor, Institut für Wasser- und Umweltsystemmodellierung, Universität Stuttgart

  • 1999: erster Preis der John F. Kennedy Student Paper Competition während des 28. Kongresses der International Association for Hydraulic Research in Graz
  • 2006: Preis der Umweltschutztechnik für die beste Lehrveranstaltung ("Hydromechanik")

Publikationen

  1. (Zeitschriften-) Aufsätze

    1. Seitz, G., Mohammadi, F., & Class, H. (2021). Thermochemical Heat Storage in a Lab-Scale Indirectly Operated CaO/Ca(OH)2 Reactor - Numerical Modeling and Model Validation through Inverse Parameter Estimation. Applied Sciences, 11(2), 682. https://doi.org/10.3390/app11020682
    2. von Wolff, L., Weinhardt, F., Class, H., Hommel, J., & Rohde, C. (2021). Investigation of Crystal Growth in Enzymatically Induced Calcite Precipitation by Micro-Fluidic Experimental Methods and Comparison with Mathematical Modeling. Transport in Porous Media, 137(2), Article 2. https://doi.org/10.1007/s11242-021-01560-y
    3. Wagner, A., Eggenweiler, E., Weinhardt, F., Trivedi, Z., Krach, D., Lohrmann, C., Jain, K., Karadimitriou, N., Bringedal, C., Voland, P., Holm, C., Class, H., Steeb, H., & Rybak, I. (2021). Permeability Estimation of Regular Porous Structures: A Benchmark for Comparison of Methods. Transport in Porous Media, 138(1), 1–23. https://doi.org/10.1007/s11242-021-01586-2
    4. Weinhardt, F., Class, H., Dastjerdi, S. V., Karadimitriou, N., Lee, D., & Steeb, H. (2021). Experimental Methods and Imaging for Enzymatically Induced Calcite Precipitation in a microfluidic cell. Water Resources Research, 57, e2020WR029361. https://doi.org/doi.org/10.1029/2020WR029361
    5. Emmert, S., Davis, K., Gerlach, R., & Class, H. (2020). The Role of Retardation, Attachment and Detachment Processes during Microbial Coal-Bed Methane Production after Organic Amendment. Water, 12(11), Article 11. https://doi.org/10.3390/w12113008
    6. Emmert, S., Class, H., Davis, K. J., & Gerlach, R. (2020). Importance of specific substrate utilization by microbes in microbially enhanced coal-bed methane production: A modelling study. International Journal of Coal Geology, 229, 103567. https://doi.org/10.1016/j.coal.2020.103567
    7. Hommel, J., Akyel, A., Frieling, Z., Phillips, A. J., Gerlach, R., Cunningham, A. B., & Class, H. (2020). A Numerical Model for Enzymatically Induced Calcium Carbonate Precipitation. Applied Sciences, 10(13), 4538. https://doi.org/10.3390/app10134538
    8. Beck, M., Rinaldi, A. P., Flemisch, B., & Class, H. (2020). Accuracy of fully coupled and sequential approaches for modeling hydro- and geomechanical processes. Computational Geosciences, 24(4), 1707--1723. https://doi.org/10.1007/s10596-020-09987-w
    9. Class, H., Weishaupt, K., & Trötschler, O. (2020). Experimental and Simulation Study on Validating a Numerical Model for CO2 Density-Driven Dissolution in Water. Water, 12(3), 738. https://doi.org/10.3390/w12030738
    10. Koch, T., Gläser, D., Weishaupt, K., Ackermann, S., Beck, M., Becker, B., Burbulla, S., Class, H., Coltman, E., Emmert, S., Fetzer, T., Grüninger, C., Heck, K., Hommel, J., Kurz, T., Lipp, M., Mohammadi, F., Scherrer, S., Schneider, M., … Flemisch, B. (2020). DuMux 3 – an open-source simulator for solving flow and transport problems in porous media with a focus on model coupling. Computers & Mathematics with Applications. https://doi.org/10.1016/j.camwa.2020.02.012
    11. 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
    12. 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
    13. Beck, M., & Class, H. (2019). Modelling fault reactivation with characteristic stress-drop terms. Advances in Geosciences, 49, 1--7. https://doi.org/10.5194/adgeo-49-1-2019
    14. 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(1), 5. https://doi.org/10.1007/s13137-019-0116-8
    15. Cunningham, A. B., Class, H., Ebigbo, A., Gerlach, R., Phillips, A. J., & Hommel, J. (2019). Field-scale modeling of microbially induced calcite precipitation. Computational Geosciences, 23(2), 399--414. https://doi.org/10.1007/s10596-018-9797-6
    16. 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
    17. Koch, T., Gläser, D., Weishaupt, K., Ackermann, S., Beck, M., Becker, B., Burbulla, S., Class, H., Coltman, E., Fetzer, T., Flemisch, B., Grüninger, C., Heck, K., Hommel, J., Kurz, T., Lipp, M., Mohammadi, F., Schneider, M., Seitz, G., … Weinhardt, F. (2018). DuMuX 3.0.0. https://doi.org/10.5281/zenodo.2479595
    18. Hommel, J., Coltman, E., & Class, H. (2018). Porosity-Permeability Relations for Evolving Pore Space: A Review with a Focus on (Bio-)geochemically Altered Porous Media. Transport in Porous Media, 2(124), Article 124. https://doi.org/10.1007/s11242-018-1086-2
    19. 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
    20. Kissinger, A., Noack, V., Knopf, S., Konrad, W., Scheer, D., & Class, H. (2016). Regional-scale brine migration along vertical pathways due to CO2 injection - Part 2: a simulated case study in the North German Basin. Hydrology and Earth System Sciences (HESS).
    21. Beck, M., Seitz, G., & Class, H. (2016). Volume-Based Modelling of Fault Reactivation in Porous Media Using a Visco-Elastic Proxy Model. Transport in Porous Media.
    22. Kissinger, A., Noack, V., Knopf, S., Konrad, W., Scheer, D., & Class, H. (2016). Brine migration along vertical pathways due to CO2 injection - a simulated case study in the North German Basin with stakeholder involvement. https://doi.org/10.5194/hess-2016-281
    23. Weishaupt, K., Bordenave, A., Atteia, O., & Class, H. (2016). Numerical Investigation on the Benefits of Preheating for an Increased Thermal Radius of Influence During Steam Injection in Saturated Soil. Transport in Porous Media. https://doi.org/10.1007/s11242-016-0624-z
    24. 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
    25. 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
    26. Scheer, D., Konrad, W., Class, H., Kissinger, A., Knopf, S., & Noack, V. (2016). Regional-scale brine migration along vertical pathways due to CO2 injection - Part 1: the participatory modeling approach. Hydrology and Earth System Sciences (HESS).
    27. 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), Article 2. https://doi.org/10.1007/s11242-015-0617-3
    28. Kleinknecht, S., Class, H., & Braun, J. (2015). Density-driven migration of heavy NAPL vapor in the unsaturated zone. Vadose Zone Journal, 14(8). https://doi.org/10.2136/vzj2014.12.0173
    29. Scheer, D., Konrad, W., Class, H., Kissinger, A., Knopf, S., & Noack, V. (2015). Expert involvement in science development: (re-)evaluation of an early screening tool for carbon storage site characterization. International Journal of Greenhouse Gas Control, 37.
    30. Class, H., Mahl, L., Ahmed, W., Norden, B., Kühn, M., & Kempka, T. (2015). Matching Pressure Measurements and Observed CO2 Arrival Times with Static and Dynamic Modelling at the Ketzin Storage site. Energy Procedia, 76.
    31. 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(5), Article 5. https://doi.org/10.1002/2014WR016503
    32. Gerbersdorf, S. U., Cimatoribus, C., Class, H., Engesser, K.-H., Helbich, S., Hollert, H., Lange, C., Kranert, M., Metzger, J. W., Nowak, W., Seiler, T.-B., Steger, K., Steinmetz, H., & Wieprecht, S. (2015). Anthropogenic Trace Compounds (ATCs) in aquatic habitats - Research needs on sources, fate, detection and toxicity to ensure timely elimination strategies and risk management. Environment International, Vol.79.2015. https://doi.org/10.1016/j.envint.2015.03.011
    33. Kissinger, A., Noack, V., Knopf, S., Scheer, D., Konrad, W., & Class, H. (2014). Characterization of reservoir conditions for CO2 storage using a dimensionless Gravitational Number applied to the North German Basin. Sustainable Energy Technologies and Assessments, 7. https://doi.org/10.1016/j.seta.2014.06.003
    34. Schaedle, P., Hubschwerlen, N., & Class, H. (2014). Optimizing the modeling performance for safety assessments of nuclear waste repositories by approximating two-phase flow and transport by single-phase transport simulations. Nuclear Technology, 187.
    35. 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
    36. Kempka, T., Class, H., Görke, U.-J., Norden, B., Kolditz, O., Kühn, M., Walter, L., Wang, W., & Zehner, B. (2013). A dynamic flow simulation code intercomparison based on the revised static model of the Ketzin pilot site. Energy Procedia, 40.
    37. Oladyshkin, S., Class, H., & Nowak, W. (2013). Bayesian updating via Bootstrap filtering combined with data-driven polynomial chaos expansions: methodology and application to history matching for carbon dioxide storage in geological formations. Computational Geosciences, 17(4), Article 4. https://doi.org/10.1007/s10596-013-9350-6
    38. Juanes, R., & Class, H. (2013). Special issue on computational methods in geologic CO2 sequestration. Advances in Water Resources, 62. https://doi.org/10.1016/j.advwatres.2013.10.012
    39. Oladyshkin, S., Schröder, P., Class, H., & Nowak, W. (2013). Chaos expansion based Bootstrap filter to calibrate CO2 injection models. Energy Procedia, 40, Article 40. https://doi.org/10.1016/j.egypro.2013.08.046
    40. Lange, T., Sauter, M., Heitfeld, M., Schetelig, K., Brosig, K., Jahnke, W., Kissinger, A., Helmig, R., Ebigbo, A., & Class, H. (2013). Hydraulic fracturing in unconventional gas reservoirs: risks in the geological system, part 1. Environmental Earth Sciences. https://doi.org/10.1007/s12665-013-2803-3
    41. Kissinger, A., Helmig, R., Ebigbo, A., Class, H., Lange, T., Sauter, M., Heitfeld, M., Klünker, J., & 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
    42. Walter, L., Binning, P. J., & Class, H. (2013). Predicting salt intrusion into freshwater aquifers resulting from CO2 injection - a study on the influence of conservative assumptions. Advances in Water Resources, 62.
    43. 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
    44. Bauer, S., Class, H., Ebert, M., Feeser, V., Götze, H., Holzheid, A., Kolditz, O., Rosenbaum, S., Rabbel, W., Schäfer, D., & Dahmke, A. (2012). Modeling, parameterization and evaluation of monitoring methods for CO2 storage in deep saline formations: the CO2-MoPa project. Environmental Earth Sciences, 67. https://doi.org/10.1007/s12665-012-1707-y
    45. Walter, L., Binning, P. J., Oladyshkin, S., Flemisch, B., & Class, H. (2012). Brine migration resulting from CO2 injection into saline aquifers - An approach to risk estimation including various levels of uncertainty. International Journal of Greenhouse Gas Control, 9. https://www.sciencedirect.com/science/article/pii/S1750583612001077
    46. Walter, L., Oladyshkin, S., Class, H., Darcis, M., & Helmig, R. (2011). A study on pressure evolution in a sand channel system during CO2 injection. Energy Procedia, 4.
    47. Schäfer, F., Walter, L., Class, H., & Müller, C. (2011). The regional pressure impact of CO2 storage: a showcase study from the North German Basin. Environmental Earth Sciences. https://doi.org/10.1007/s12665-011-1184-8
    48. 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, 120–121(1), Article 1. https://doi.org/10.1016/j.jconhyd.2010.08.001
    49. Oladyshkin, S., Class, H., Helmig, R., & Nowak, W. (2011). 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
    50. 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), Article 1. https://doi.org/10.2516/ogst/2010037
    51. 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.
    52. Oladyshkin, S., Class, H., Helmig, R., & Nowak, W. (2011). An integrative approach to robust design and probabilistic risk assessment for CO2 storage in geological formations. Computational Geosciences, 15(3), Article 3. https://doi.org/10.1007/s10596-011-9224-8
    53. Kopp, A., Binning, P. J., Johannsen, K., Helmig, R., & Class, H. (2010). A contribution to risk analysis for leakage through abandoned wells in geological CO2 storage. Advances in Water Resources, 33(8), Article 8. https://doi.org/10.1016/j.advwatres.2010.05.001
    54. Kempka, T., Kühn, M., Class, H., Frykman, P., Kopp, A., Nielsen, C. M., & Probst, P. (2010). Modelling of CO2 arrival time at Ketzin - Part I. International Journal of Greenhouse Gas Control, 4. https://doi.org/10.1016/j.ijggc.2010.07.005
    55. Ebigbo, A., Helmig, R., Cunningham, A. B., Class, H., & Gerlach, R. (2010). Modelling biofilm growth in the presence of carbon dioxide and water flow in the subsurface. Advances in Water Resources, 33(7), Article 7. https://doi.org/10.1016/j.advwatres.2010.04.004
    56. 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
    57. Class, H., Dahle, H. K., & Helmig, R. (2009). Preface (to the Special Issue). Computational Geosciences, 13. https://doi.org/10.1007/s10596-009-9160-z
    58. Darcis, M., Class, H., & Flemisch, B. (2009). Coupling Models of Different Complexity for the Simulation of CO2 Storage in Saline Aquifers. Energy Procedia, 1. https://www.sciencedirect.com/science/article/pii/S187661020900232X
    59. Kopp, A., Class, H., & Helmig, R. (2009). Investigations on CO2 storage capacity in saline aquifers - Part 2: Estimation of storage capacity coefficients. International Journal of Greenhouse Gas Control, 3(3), Article 3. https://doi.org/10.1016/j.ijggc.2008.10.001
    60. 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), Article 3. https://doi.org/10.1016/j.ijggc.2008.10.002
    61. Kopp, A., Probst, P., Class, H., Hurter, S., & Helmig, R. (2009). Estimation of CO2 storage capacity coefficients in geologic formations. Energy Procedia, 1(1), Article 1. https://doi.org/10.1016/j.egypro.2009.02.060
    62. Class, H., Ebigbo, A., Helmig, R., Dahle, H. K., Nordbotten, J. M., Celia, M. A., Audigane, P., Darcis, M., Ennis-King, J., Fan, Y., Flemisch, B., Gasda, S. E., Jin, M., Krug, S., Labregere, D., Naderi Beni, A., Pawar, R. J., Sbai, A., Thomas, S. G., … 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), Article 4. https://doi.org/10.1007/s10596-009-9146-x
    63. Freiboth, S., Class, H., Helmig, R., Graf, T., Ehlers, W., Schwarz, V., & Vrettos, C. (2009). A model for multiphase flow and transport in porous media including a phenomenological approach to account for deformation - a model concept and its validation within a code intercomparison study (Nr. 3). 13(3), Article 3. https://doi.org/10.1007/s10596-008-9118-6
    64. Dogan, M. O., Class, H., & Helmig, R. (2009). Different concepts for the coupling of porous-media flow with lower-dimensional pipe flow. Computer Modeling in Engineering & Sciences, 53(3), Article 3. https://doi.org/10.3970/cmes.2009.053.207
    65. Bielinski, A., Kopp, A., Schütt, H., & Class, H. (2008). Monitoring of CO2 plumes during storage in geological formations using temperature signals: numerical investigation (Nr. 2). 2, Article 2. https://doi.org/10.1016/j.ijggc.2008.02.008
    66. Class, H., Helmig, R., & Neuweiler, I. (2008). Sequential coupling of models for contaminant spreading in the vadose zone. Vadose Zone Journal, 7(2), Article 2. https://doi.org/10.2136/vzj2007.0056
    67. Class, H., Mahl, L., Ahmed, W., Norden, B., Kühn, M., & Kempka, T. (1963). Matching pressure measurements and observed CO2 arrival times with static and dynamic modelling at the Ketzinstorage site.
  2. Monografien

    1. Scheer, D., Class, H., & Flemisch, B. (2021). Subsurface Environmental Modelling Between Science and Policy. Springer International Publishing. https://doi.org/10.1007/978-3-030-51178-4
    2. Helmig, R., & Class, H. (2005). Grundlagen der Hydromechanik. Shaker Verlag.
  3. Datensätze

    1. Weinhardt, F., Class, H., Vahid Dastjerdi, S., Karadimitriou, N., Lee, D., & Steeb, H. (2021). Optical Microscopy and pressure measurements of Enzymatically Induced Calcite Precipitation (EICP) in a microfluidic cell. DaRUS. https://doi.org/10.18419/darus-818
    2. Vahid Dastjerdi, S., Steeb, H., Ruf, M., Lee, D., Weinhardt, F., Karadimitriou, N., & Class, H. (2021). micro-XRCT dataset of Enzymatically Induced Calcite Precipitation (EICP) in a microfluidic cell. DaRUS. https://doi.org/10.18419/darus-866
  4. Beiträge in Sammelband

    1. Class, H., Kissinger, A., Knopf, S., Konrad, W., Noack, V., & Scheer, D. (2015). Combined Natural and Social Science Approach for Regional-Scale Characterisation of CO2 Storage Formations and Brine Migration Risks (CO2BRIM) (Nr. 22; Nummer 22). Springer-Verlag.
  5. Konferenzbeiträge

    1. Hommel, J., Phillips, A., Gerlach, R., Cunningham, A. B., Helmig, R., & Class, H. (2017, November). Modeling porous medium modification through induced calcite precipitation. 7th GACM Colloquium on Computational Mechanics , 11.10.2017 - 13.10.2017, Stuttgart. https://dx.doi.org/10.18419/opus-9334
    2. Oladyshkin, S., Class, H., Helmig, R., & Nowak, W. (2011). Data-driven framework for history matching: application to carbon dioxide storage in geological formations. European Geosciences Union (EGU) - General Assembly, 03.04.2011 - 08.04.2011, Vienna, Austria, Vol.13(EGU2011-11), Article EGU2011-11.
    3. Oladyshkin, S., Class, H., Helmig, R., & Nowak, W. (2010, Dezember). 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.
    4. Oladyshkin, S., Class, H., Helmig, R., & Nowak, W. (2010). 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), Article EGU2010-3559.
    5. Oladyshkin, S., Class, H., Hofmann, R., & Nowak, W. (2010). Highly efficient tool for probabilistic risk assessment of CCS joint with injection design. In J. Carrera (Hrsg.), Computational Methods in Water Resources (CMWR), XVIII International Conference on Water Resources, 21.06.2010 - 24.06.2010, Barcelona, Spain. C.F. Müller Verlag.
    6. Helmig, R., Class, H., Darcis, M., Niessner, J., Erbertseder, K., Perfahl, H., & Reuss, M. (2008, November). 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.
    7. Helmig, R., Darcis, M., & Class, H. (2008). Transfer of modeling concepts for flow and transport processes in porous media from subsurface systems to biological tissues. ASME International Mechanical Engineering Congress and Exposition, 31.10.2008 - 06.11.2008, Boston, 12(WOS:000265081000004), Article WOS:000265081000004.
    8. Kopp, A., Probst, P., Class, H., Hurter, S., & Helmig, R. (2008, November). Estimation of CO2 Storage Capacity Coefficients in Geologic Formations. 9th International Conference on Greenhouse Gas Control Technologies (GHGT9), 16.11.2008 - 20.11.2008, Washington DC, USA.
    9. Class, H., Ebigbo, A., & Kopp, A. (2007). Numerical modeling of CO2 storage in geological formations - recent developments and challenges. 1. French-German Symposium on Geological Storage of CO2, 21.06.2007 - 22.06.2007, Potsdam, ScienceReportNo.9, Article ScienceReportNo.9. https://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/class-d-f-07.pdf
    10. Ochs, S. O., Class, H., Helmig, R., & Acosta, M. (2007). Simulation of multiphase multicomponent processes in the diffusion layer of PEM fuel cells. In M. Qintard (Hrsg.), Eurotherm 81, ALbi, France, 04.06.2007 - 06.06.2007, Albi, France.
    11. Ochs, S. O., Class, H., & Helmig, R. (2006). Fortschritte bei der Entwicklung eines prognosefähigen numerischen Modells zur Simulation der Dampfinjektion in die gesättigte Bodenzone. In J. Braun & H.-P. & M. S. Koschitzky (Hrsg.), VEGAS - Statuskolloquium 2006, 28.09.2006 - 28.09.2006, Stuttgart (09_2006; Nummer 09_2006).
    12. Helmig, R., Miller, C. T., Jakobs, H., Class, H., Hilpert, M., Kees, C. E., & Niessner, J. (2006, Juni). Multiphase Flow and Transport Modeling in Heterogeneous Porous Media. Progress in Industrial Mathematics at ECMI 2004, 21.06.2004 - 25.06.2004, Eindhoven University of Technology.
    13. Greiner, P., Braun, J., Class, H., Koschitzky, H.-P., Schnieders, J., & Stadler, L. (2005). Numerische Modellierung der Mehrphasen-/Mehrkomponenten-Hydraulik bei der Alkoholspülung. In J. Braun & H. P. & M. M. Koschitzky (Hrsg.), Ressource Untergrund, 10 Jahre VEGAS: Forschung und Technologieentwicklung zum Schutz von Grundwasser und Boden, 28.09.2005 - 29.09.2005, Universität Stuttgart (Nr. 145; Nummer 145).
    14. Ochs, S. O., Class, H., & Färber, A. (2005). Numerische und experimentelle Untersuchung zur Dampfinjektion in die gesättigte Bodenzone. In J. Braun & H. P. & M. M. Koschitzky (Hrsg.), Ressource Untergrund, 10 Jahre VEGAS: Forschung und Technologieentwicklung zum Schutz von Grundwasser und Boden, 28.09.2005 - 29.09.2005, Universität Stuttgart (Nr. 145; Nummer 145).
    15. Class, H., & Ochs, S. O. (2005). Ein Konzept zur Kopplung numerischer Module für die Simulation von Schadstoffversickerung, -susbreitung und thermischer Sanierung. In J. Braun & H. P. & M. M. Koschitzky (Hrsg.), Ressource Untergrund, 10 Jahre VEGAS: Forschung und Technologieentwicklung zum Schutz von Grundwasser und Boden, 28.09.2005 - 29.09.2005, Universität Stuttgart (Nr. 145; Nummer 145).
    16. Färber, A., Class, H., Jie, D., Koschitzky, H.-P., Müller, C., Ochs, S. O., Trötschler, O., & Steidinger, S. (2004). Dampf-Luft-Injektion zur In-situ-Sanierung der gesättigten Bodenzone: Anwendungsmöglichkeiten und Erfahrungen aus einer PCE-Sanierung in Albstadt. In B. Barczewski, H.-P. Koschitzky, & K. & R. W. Weber (Hrsg.), VEGAS - Statuskolloquium 2004, 05.10.2004, Universität Stuttgart (Nr. 131; Nummer 131).
    17. Jakobs, H., Bielinski, A., Class, H., & Helmig, R. (2002). Modeling of heterogeneities for twophase flow in the subsurface. International Conference on Multifield Problems, 08.04.2002 - 10.04.2002, Stuttgart, 12(WOS:000189408100035), Article WOS:000189408100035.
    18. Class, H., Bielinski, A., & Helmig, R. (2002, Oktober). CO2-Injektion in geologische Formationen - numerische Berechnungen und erste Überlegungen für großskalige Experimente in VEGAS. VEGAS Statuskolloquium, 12.10.2001, Universität Stuttgart.
  6. Promotionen

    1. Class, H. (2008). Models for non-isothermal compositional gas-liquid flow and transport in porous media [Habilitationsschrift, Universität Stuttgart, Institut für Wasserbau]. https://elib.uni-stuttgart.de/opus/volltexte/2009/3847/pdf/class_habil_version1.1.pdf
  7. Forschungsberichte

    1. Class, H., Kissinger, A., Knopf, S., Konrad, W., Noack, V., & Scheer, D. (2015). Schlussbericht: Mehrstufige und regionale Charakterisierung potentieller CO2-Speicherformationen unter besonderer Berücksichtigung von Soleaufstiegsrisiken - ein integrierter natur- und sozialwissenschaftlicher Ansatz (Bericht 04/15; Bd. LH223, Nummer 04/15).
    2. Zigelli, N., Kissinger, A., & Class, H. (2014). Modeling the migration of fracturing fluids into shallow groundwater systems - literature review and numerical simulations (Bericht TB09/2014; Bd. LH222, Nummer TB09/2014). https://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/2014/Zigelli_etal_2014.pdf
    3. Darcis, M., Flemisch, B., & Class, H. (2012). CO2-MoPa -- Kopplung von DuMux und OGS zur Verifikation der OGS-Eclipse Kopplung -- Untersuchung von zeitlichen und räumlichen Modellkopplungsstrategien zur Effizienzsteigerung (Bericht 10/12; Bd. LH221, Nummer 10/12).
    4. Ebigbo, A., Phillips, A., Gerlach, R., Helmig, R., Cunningham, A. B., Class, H., & Spangler, L. H. (2012). Darcy-scale modeling of microbially induced carbonate mineral precipitation in sand columns. In Water Resources Research (Bericht Nr. W07519; Water Resources Research, Bd. 48, Nummer W07519). https://doi.org/10.1029/2011WR011714
    5. Class, H., Brauer, K., Kissinger, A., Walter, L., Darcis, M., & Ebigbo, A. (2011). Beeinträchtigung von Grundwasser durch Speicherung von Gasen im Untergrund (Bericht 15/2011; Bd. LH220, Nummer 15/2011). https://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/2012/WB15-2011-LH2-20.pdf
    6. Ebigbo, A., Class, H., & Helmig, R. (2008). Numerische Untersuchung zur CO2 Sequestrierung in geologischen Formationen - problemorientierte Benchmarks (Bericht 10_2008; Bd. LH218, Nummer 10_2008).
    7. Kopp, A., Class, H., & Helmig, R. (2007). Treibhausgase in der Bodenfalle: Bd. 01_07 (Bericht Nr. 99; Nummer 99). UNI-Kurier. https://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/Stuttgarter-UniKurier-Nr99-pg54-Juni2007-Treibhausgase_in_der_Bodenfalle.pdf
    8. Dogan, M. O., Class, H., & Helmig, R. (2007). Numerische Modellierung von Mehrphasenströmungs- und Transportprozessen bei der Sequestrierung von CO2 in geologischen Formationen (Bericht 09_2007; Bd. LH215, Nummer 09_2007). https://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/co2trap_wissenschaftlicher_bericht.pdf
    9. Assteerawatt, A., Bastian, P., Bielinski, A., Breiting, T., Class, H., Ebigbo, A., Eichel, H., Freiboth, S., Helmig, R., Kopp, A., Niessner, J., Ochs, S. O., Papafotiou, A., Paul, M., Sheta, H., & Ölmann, U. (2005). MUFTE-UG: Structure, Applications andNumerical Methods [Bericht]. https://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/IGWMC_newsletter_MUFTE.pdf

Vorträge

  1. Beck, M. (2019). Conceptual approaches for the analysis of coupled hydraulic and geomechanical processes [Phdthesis, Stuttgart : Eigenverlag des Instituts für Wasser- und Umweltsystemmodellierung der Universität Stuttgart]. http://dx.doi.org/10.18419/opus-10418
  2. Hommel, J., Phillips, A., Gerlach, R., Cunningham, A. B., Helmig, R., & Class, H. (2018). Modeling field-scale applications of microbially induced calcium carbonate precipitation. In Computational Methods in Water Resources (CMWR) XXII, 04.06.2018 - 07.06.2018, St. Malo, Frankreich. https://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/2018/CMWR2018Poster.pdf
  3. Class, H., Walter, L., Darcis, M., Ebigbo, A., & Flemisch, B. (2011). Simulation-based concepts for the evaluation of risk scenarios associated with geological storage of carbon dioxide. In Kolloquium Wasserwesen, TU Berlin, 05.05.2011, Berlin. https://www.iws.uni-stuttgart.de/publikationen/hydrosys/vortraege/2011/simulation_based
  4. Class, H., Darcis, M., Walter, L., & Kempka, T. (2010). Coupling models of different complexity on different spatial and temporal scales for simulating CO2 storage scenarios. In Rencontres Scientifiques, High Performance Computing for CO2 Geological Storage, 14.06.2010 - 16.06.2010, Paris, France.
  5. Class, H. (2010). Predictive modelling? �On matching arrival times and pressure data in Ketzin. In Norwegian-German workshop on Geological Storage of CO2, 01.06.2010 - 02.06.2010, Potsdam. https://www.iws.uni-stuttgart.de/publikationen/hydrosys/vortraege//N-D-CCS-Workshop-Potsdam-June2010-Class.pdf
  6. Class, H., Darcis, M., & Walter, L. (2009). Coupled models for approaching the large scales in simulating CO2 storage in geological formations. In International Workshop on Coupled Models in Energy, Hydrological and Climate Research, 08.10.2009 - 09.10.2009, Berlin.
  7. Class, H., Ebigbo, A., Darcis, M., Walter, L., Flemisch, B., Kopp, A., & Helmig, R. (2009). Intercomparison of codes and models - How can we improve reliability and understanding of model predictions for CO2 storage? In Workshop on Modelling and Risk Assessment of Geological Storage of CO2, 03.08.2009 - 07.08.2009, Longyearbyen, Svalbard.
  8. Class, H. (2009). Strömungen durch poröse Medien und in komplexen Strukturen - Beispiele und Konzepte zur Kopplung von Modellierungsansätzen.
  9. Class, H., Ebigbo, A., Kopp, A., & Helmig, R. (2008). Numerical Investigation of CO2 Sequestration in Geological Formations - Problem-Oriented Benchmarks. In Geotechnologien Statusseminar, 20.10.2008 - 21.10.2008, Stuttgart, Haus der Wirtschaft.
  10. Class, H. (2008). Models for non-isothermal compositional gas-liquid flow and transport in porous media [Habilitationsschrift, Universität Stuttgart, Institut für Wasserbau]. https://elib.uni-stuttgart.de/opus/volltexte/2009/3847/pdf/class_habil_version1.1.pdf
  11. Class, H. (2008). Numerical Models for Carbon Dioxide Storage in Geological Formations. In Workshop on Numerical Models for Carbon Dioxide Storage in Geological Formations, 02.04.2008 - 04.04.2008, Stuttgart.
  12. Class, H., Ebigbo, A., Helmig, R., & Darcis, M. (2007). Numerical Investigation of CO2 Sequestration in Geological Formations - Problem-Oriented Benchmarks. In Geotechnologien Statusseminar, 15.11.2007 - 16.11.2007, Hamburg. https://www.iws.uni-stuttgart.de/publikationen/hydrosys/vortraege/BENCHMARKS_HAMBURG_07.pdf
  13. Class, H., Kopp, A., & Ebigbo, A. (2007). Modeling of CO2 storage in geological formations. In IAHR Stuttgart Student Chapter Colloquium 2007, 31.10.2007 - 31.10.2007, Stuttgart.
  14. Class, H., Ebigbo, A., Kopp, A., & Helmig, R. (2007). Numerical modeling of CO2 storage in geological formations - recent developments and challenges. In 1. French-German Symposium on Geological Storage of CO2, 21.06.2007 - 22.06.2007, Potsdam.
  15. Class, H., Ebigbo, A., Kopp, A., & Helmig, R. (2007). Reliability of numerical models for simulating CO2 storage in deep geological formations. In Deutsche Geophysikalische Gesellschaft - Jahrestagung, 26.03.2007 - 29.03.2007, Aachen. https://www.iws.uni-stuttgart.de/publikationen/hydrosys/vortraege/dgg-aachen-07_mod.pdf
  16. Class, H. (2007). Models for Non-Isothermal Compositional Gas-Liquid Flow and Transport in Porous Media. In Selected Topics and International Network Lectures - Seminar Lehrstuhl für Hydromechanik und Hydrosystemmodellierung, 12.02.2007 - 13.02.2007, Stuttgart.
  17. Class, H., & Ebigbo, A. (2006). Numerical investigation of CO2 sequestration in geological formations - problem-oriented benchmarks. In Geotechnologien Statusseminar, 22.11.2005 - 23.11.2005, Hannover.
  18. Kühn, M., Kempka, T., & Class, H. (2006). Development and Evaluation of Innovative Strategies for Sequestration and Permanent Immobilisation of CO2 in Geological Formations. In Geotechnologien Statusseminar, 21.11.2006 - 22.11.2006, Freiberg.
  19. Class, H., & Ochs, S. O. (2005). Ein Konzept zur Kopplung numerischer Module für die Simulation von Schadstoffversickerung, -susbreitung und thermischer Sanierung. In J. Braun & H. P. & M. M. Koschitzky (Hrsg.), Ressource Untergrund, 10 Jahre VEGAS: Forschung und Technologieentwicklung zum Schutz von Grundwasser und Boden, 28.09.2005 - 29.09.2005, Universität Stuttgart (Nr. 145; Nummer 145).
  20. Class, H., Bielinski, A., & Ochs, S. O. (2004). Applications of non-isothermal multiphase multicomponent models for flow and transport in porous media. In Progress in Industrial Mathematics at ECMI 2004, 21.06.2004 - 25.06.2004, Eindhoven University of Technology.
  21. Class, H., & Bielinski, A. (2003). Numerical modeling of nonisothermal multiphase multicomponent processes: General concepts, basic assumptions and some applications. In Workshop on Aquifer Storage of CO2, 06.11.2003 - 07.11.2003, University of Bergen, Norway.
  22. Class, H., & Acosta, M. (2003). Numerical modelling of non-isothermal multiphase multicomponent processes in porous media: 1. General concepts, basic assumptions, and example applications 2. The model concept applied to describe the processes in the cathode diffusion layer of a PEM-fuel cell. In MACSI-Net Working Group 14: „Filtration Problems in porous media and paper manufacturing“ (Workshop 2003), 21.11.2003 - 22.11.2003, Universität Stuttgart.
  23. Class, H., Bielinski, A., & Helmig, R. (2002, Oktober). CO2-Injektion in geologische Formationen - numerische Berechnungen und erste Überlegungen für großskalige Experimente in VEGAS. VEGAS Statuskolloquium, 12.10.2001, Universität Stuttgart.
  24. Class, H., Bielinski, A., & Helmig, R. (2001, Oktober). Numerische Simulation von Mehrphasen-Mehrkomponenten-Systemen: Effiziente Algorithmen, Möglichkeiten und Probleme. VEGAS Statuskolloquium, 12.10.2001, Universität Stuttgart.
  25. Class, H., & Helmig, R. (1999, Oktober). Numerische Modellierung von thermisch unterstützter Bodenluftabsaugung. VEGAS Statuskolloquium, 12.10.2001, Universität Stuttgart.
  26. Class, H. (1999, August). Numerical Simulation of Non-isothermal Steam Injection Processes in NAPL-Contaminated Porous Media. 28. IAHR Congress: Hydraulic Engineering for Sustainable Water Resources Management at the Turn of the Millennium, 22.08.1999 - 27.08.1999, Graz, Austria.
  27. Sheta, H., Class, H., & Helmig, R. (1998). Numerische Simulation von isothermen/ nichtisothermen Mehrphasenströmungen unter Berücksichtigung der Veränderung der Fluideigenschaften. In PWAB-Statuskolloquium, 17.03.1998 - 18.03.1998, Karlsruhe (PWAB-Statuskolloquium, 17.03.1998 - 18.03.1998, Karlsruhe) [Bericht].

Poster

  1. Seitz, G., Helmig, R., & Class, H. (2019). Model Coupling in thermochemical Heat Storage. In InterPore 2019. https://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/2019/2019_SeitzG_Interpore_Poster.pdf
  2. Scherrer, S., Haslauer, C., Class, H., Klaas, N., & Braun, J. (2019). Änalytische Berechnung periodisch betriebener Wärmequellen im Untergrund" (Poster). Der Geothermiekongress 2019, München.
  3. Hommel, J., Phillips, A., Gerlach, R., Cunningham, A. B., Helmig, R., & Class, H. (2018). Modeling field-scale applications of microbially induced calcium carbonate precipitation. In Computational Methods in Water Resources (CMWR) XXII, 04.06.2018 - 07.06.2018, St. Malo, Frankreich. https://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/2018/CMWR2018Poster.pdf
  4. Beck, M., & Class, H. (2018). Comparison of sequential and fully-coupled approaches for flow and geomechanics. In European Geosciences Union (EGU) - General Assembly, 08.04.2018 - 13.04.2018, Vienna, Austria.
  5. Hommel, J., Phillips, A., Gerlach, R., Cunningham, A. B., Helmig, R., & Class, H. (2018). Modeling field-scale applications of microbially induced calcium carbonate precipitation. In 2nd International Conference on Simulation Technology (SimTech 2018), 26.03.2018 - 28.03.2018, Stuttgart. https://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/2018/SimTech2018Poster.pdf
  6. Glaeser, D., Helmig, R., Flemisch, B., & Class, H. (2017). A discrete fracture model using a cell-centered finite volume scheme with multi-point flux approximation. In 9th International Conference on Porous Media & Annual Meeting (InterPore), 08.05.2017 - 11.05.2017, Rotterdam, Netherlands. https://www.new.interpore.org/interpore-rotterdam-2017
  7. Seitz, G., Helmig, R., & Class, H. (2017). Numerical Model of a Ca(OH)2 / CaO thermochemical heat storage reactor. In 9th International Conference on Porous Media & Annual Meeting - InterPore 2017, 08.05.2017 - 11.05.2017, Rotterdam, The Netherlands. https://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/2017/Seitz_IWS_Interpore2017.pdf
  8. Hommel, J., Ebigbo, A., Gerlach, R., Cunningham, A. B., Helmig, R., & Class, H. (2016). Finding a balance between accuracy and computational effort for modeling biomineralization. In 1st SRP NUPUS Meeting, 05.10.2016 - 07.10.2016, Mühlhausen im Täle. https://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/2016/Hommel_NUPUS_Poster_2016.pdf
  9. Hommel, J., Ebigbo, A., Gerlach, R., Cunningham, A. B., Helmig, R., & Class, H. (2016). Finding a balance between accuracy and effort for modeling biomineralization. In Gordon Research Conference on Flow and Transport in Permeable Media, 01.08.2016 - 05.08.2016, Girona, Spanien. https://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/2016/Gordon_Hommel_2016.pdf
  10. Hommel, J., Ebigbo, A., Gerlach, R., Cunningham, A. B., Helmig, R., & Class, H. (2016). Finding a balance between accuracy and effort for modeling biomineralization. In Gordon Research Seminar on Flow and Transport in Permeable Media, 30.07.2016 - 31.07.2016, Girona, Spanien. https://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/2016/Gordon_Hommel_2016.pdf
  11. Glaeser, D., Class, H., Kissinger, A., & Beck, M. (2016). Towards a parameterized model for risk assessment in shale gas exploration. In European Geosciences Union General Assembly (2016), 17.04.2016 - 22.04.2016, Vienna, Austria. https://www.egu2016.eu/
  12. Hommel, J., Ebigbo, A., Gerlach, R., Cunningham, A. B., Helmig, R., & Class, H. (2016). Finding a balance between accuracy and computational effort for modeling biomineralization. In EGU General Assembly 2016, 18.04.2016 - 22.04.2016, Vienna, Austria. https://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/2016/EGU_Hommel_2016.pdf
  13. Hommel, J., Ebigbo, A., Gerlach, R., Cunningham, A. B., Helmig, R., & Class, H. (2015). Finding a balance between accuracy and effort for modeling biomineralization. In NUPUS annual meeting 2015 , 08.09.2015 - 12.09.2015, Freudenstadt. https://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/2015/NUPUS_Hommel_2015.pdf
  14. Beck, M., Seitz, G., Class, H., & Helmig, R. (2015). A new phenomenological approach to modelling of shear failure in porous media. In NUPUS annual meeting 2015 , 08.09.2015 - 12.09.2015, Freudenstadt. https://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/2015/NupusPoster_Beck_2015.pdf
  15. 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 insights. In 7th International Conference on Porous Media & Annual Meeting - InterPore 2015, 18.05.2015 - 21.05.2015, Padua, Italy. https://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/2015/InterPore_Hommel_2015.pdf
  16. Hommel, J., Lauchnor, E., Cunningham, A. B., Helmig, R., Ebigbo, A., & Class, H. (2014). Improvements in Modeling Microbially Induced Calcite Precipitation as a Leakage Mitigation Technology. In Gordon Research Seminar on Flow and Transport in Permeable Media 2014, 05.07.2014 - 06.07.2014, Lewiston, Maine, USA. https://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/2015/Gordon_Hommel_2014.pdf
  17. Beck, M., Darcis, M., Class, H., & Helmig, R. (2014). Spatial model coupling - an efficient scheme to combine hydraulic and geomechanic simulations. In Gordon Research Conference on Flow and Transport in Permeable Media 2014, 06.07.2014 - 11.07.2014, Lewiston, Maine, USA. https://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/2014/GordonPosterBeck.pdf
  18. Hommel, J., Lauchnor, E., Cunningham, A. B., Helmig, R., Ebigbo, A., & Class, H. (2014). Improvements in Modeling Microbially Induced Calcite Precipitation as a Leakage Mitigation Technology. In Gordon Research Conference on Flow and Transport in Permeable Media 2014, 06.07.2014 - 11.07.2014, Lewiston, Maine, USA. https://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/2014/Gordon_Hommel_2014.pdf
  19. Hommel, J., Lauchnor, E., Cunningham, A. B., Helmig, R., Ebigbo, A., & Class, H. (2014). Estimation of uncertain parameters to improve modeling of Microbially Induced Calcite Precipitation. In European Geoscience Union General Assembly 2014, 28.04.2014 - 02.05.2014, Vienna, Austria. https://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/2014/EGU_Hommel_2014.pdf
  20. Hommel, J., Cunningham, A. B., Helmig, R., Ebigbo, A., & Class, H. (2014). Estimation of uncertain parameters of the biomineralization model by inverse modeling. In NUPUS annual meeting 2014, 16.03.2014 - 19.03.2014, Freudenstadt. https://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/2014/Nupus-Meeting_Hommel_2014.pdf
  21. Class, H., Flemisch, B., Helmig, R., Baber, K., Faigle, B., Grüninger, C., Kissinger, A., Schmid, K. S., Schneider, M., Schröder, N., Schwenck, N., & Walter, L. (2014). Dumux: Dune for Multi-Phase, Component, Scale, Physics, ... Flow and Transport in Porous Media. In NumPor Annual Meeting 2014, 02.03.2014 - 03.03.2014, KAUST, Kingdom of Saudi Arabia.
  22. Kleinknecht, S., Braun, J., & Class, H. (2014). Migration and Retention of a Heavy NAPL Vapor in the Unsaturated Zone. In 8th NUPUS Meeting. http://www.iws.uni-stuttgart.de/publikationen/vegas/NUPUSConferenceKleinknecht.pdf
  23. Hommel, J., Cunningham, A. B., Ebigbo, A., Helmig, R., & Class, H. (2013). Numerical investigation of microbially induced calcite precipitation as leakage mitigation technology. In NUPUS-Conference, 30.09.2013 - 02.10.2013, Bergen, Norway. https://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/2013/NUPUS-Conference_Hommel_2013.pdf
  24. Oladyshkin, S., Schröder, P., Class, H., & Nowak, W. (2013). Chaos Expansion Based Bootstrap Filter To Calibrate CO2 Injection. In EGU General Assembly, 07.04.2013 - 11.04.2013, Vienna, Austria: Bd. Vol.15.
  25. Hommel, J., Cunningham, A. B., Helmig, R., Ebigbo, A., & Class, H. (2013). Numerical investigation of microbially induced calcite precipitation as leakage mitigation technology. In NUPUS annual Meeting 17-20 March 2013, 17.03.2013 - 20.03.2013, Freudenstadt. https://www.iws.uni-stuttgart.de/publikationen/hydrosys/paper/2013/Nupus-Meeting_Hommel_2013.pdf
  26. Oladyshkin, S., Class, H., Helmig, R., & Nowak, W. (2011). Efficient Bayesian updating with particle filters based on polynomial chaos expansion for CO2 storage. In AGU Fall Meeting 2011, 05.12.2011 - 09.12.2011, San Francisco, USA.
  27. Oladyshkin, S., Class, H., Helmig, R., & Nowak, W. (2011). Modeling of underground carbon dioxide storage: data-driven robust design and probabilistic risk assessment. In SimTech 2011 - International Conference on Simulation Technology 2011, 14.06.2011 - 17.06.2011, Stuttgart.
  28. Walter, L., Class, H., Oladyshkin, S., Flemisch, B., & Helmig, R. (2011). Influence of Dirichlet boundary conditions on risk assessment for CO2 storage in geological formations. In SimTech 2011 - International Conference on Simulation Technology 2011, 14.06.2011 - 17.06.2011, Stuttgart.
  29. Walter, L., Oladyshkin, S., Class, H., Darcis, M., & Helmig, R. (2010). A study on pressure evolution in a sand channel system during CO2 injection. In Greenhouse Gas Control Technologies (GHGT10), 19.09.2010 - 23.09.2010, Amsterdam, The Netherlands.
  30. Mosthaf, K., Class, H., Flemisch, B., Helmig, R., Leijnse, T., & Rybak, I. (2009). Multi-component modeling of porous-media flow coupled with free flow. In European Geosciences Union (EGU) - General Assembly, 20.04.2009 - 24.04.2009, Wien, Österreich.
  31. Darcis, M., Class, H., & Flemisch, B. (2008). Coupling Models of Different Complexity for the Simulation of CO2 Storage in Saline Aquifers. In 9th International Conference on Greenhouse Gas Control Technologies (GHGT9), 16.11.2008 - 20.11.2008, Washington DC, USA.
  32. Winkler, A., Class, H., & Helmig, R. (2002). An Efficient Solution Technique for the Numerical Simulation of Thermally Enhanced Soil Vapour Extraction. In International Groundwater Symposium: „Bridging the Gap between Measurement and Modeling in Heterogeneous Media“, 25.03.2002 - 28.03.2002, Berkeley, USA.

betreute studentische Arbeiten

  1. Modeling calcite dissolution due to density-induced fingering of CO2-enriched water. (2021). (Master’s Thesis).
  2. Kalibrierung eines realistischen Grundwassermodells mit FEPEST. (2020). (Masterarbeit). Universität Stuttgart, Institut für Wasser-und Umweltsystemmodellierung, Lehrstuhl für Hydromechanik und Hydrosystemmodellierung.
  3. Grundlagenuntersuchung zum saugseitigen Filter im DNOX-Fördermodul. (2020). (Masterarbeit). Universität Stuttgart, Institut für Wasser-und Umweltsystemmodellierung, Lehrstuhl für Hydromechanik und Hydrosystemmodellierung.
  4. Experimentelle Visualisierung von Konvektion durch in Wasser gelöstes CO2. (2018). Universität Stuttgart.
  5. Steam Assisted Gravity Drainage - Comparison of continuous and cyclic injection on field and laboratory scale. (2015). (Diplomarbeit). Universität Stuttgart, Institut für Wasser- und Umweltsystemmodellierung.
  6. Effects of pH Control Techniques on Transport of Zero-Valent Iron Nanoparticles in an Aquifer. (2012). (Master’s Thesis).
  7. Vereinfachte Methoden zur Flutwellenabschätzung. (2011). (Bachelorarbeit). Universität Stuttgart, Institut für Wasserbau.
  8. Steam Injection Technique for In Situ Remediation of Chlorinated Hydrocarbons from Low Permeable Saturated Zones - Experiment and Numerical Approach. (2011). (Diplomarbeit). Universität Stuttgart, Institut für Wasserbau.
  9. Numerical Investigations of Flow through Fractured Porous Media. (2007). (Masterthesis).
  10. Erarbeitung und Implementierung eines Modellkonzepts zur Simulation von Strömungs- und Transportprozessen im menschlichen Gehirn. (2007). (Diplomarbeit). Universität Stuttgart, Institut für Wasserbau.
  11. Entwicklung und Implementierung eines numerischen Modellkonzepts zur Simulation von Alkoholspülungsprozessen in DNAPL-kontaminierten Grundwasserleitern. (2005). (Diplomarbeit). Stuttgart, Institut für Wasserbau.
  12. Numerical Modeling of Methane Adsorption and Transport Processes in Mined Areas. (2005). (Masterthesis).
  13. Numerische Modellierung von Strömungs- und Transportvorgängen für Mehrphasen-Mehrkomponenten-Systeme in geklüftet porösen Medien. (2001). (Diplomarbeit). Technische Universität Braunschweig, Institut für ComputerAnwendungen im Bauingenieurwesen.
  14. Skalenbetrachtungen zur Modellierung von Salzwasserintrusionsprozessen. (2000). (Studienarbeit). Technische Universität Braunschweig, Institut für ComputerAnwendungen im Bauingenieurwesen.
  15. Unterschiedliche Raumdiskretisierungsansätze zur numerischen Modellierung nichtisothermer Dreiphasen-Dreikomponentenströmungen in porösen Medien. (1999). (Diplomarbeit). Technische Universität Braunschweig, Institut für ComputerAnwendungen im Bauingenieurwesen.

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