Source: https://www.iws.uni-stuttgart.de/en/institute/team/Class-00008/
Timestamp: 2019-04-25 12:43:18+00:00

Document:
A. B. Cunningham, H. Class, A. Ebigbo, R. Gerlach, A. Phillips, and J. Hommel, “Field-scale modeling of microbially induced calcite precipitation,” Computational Geosciences, vol. tbd, Oct. 2018.
D. Gläser, B. Flemisch, R. Helmig, and H. Class, “A hybrid-dimensional discrete fracture model for non-isothermal two-phase flow in fractured porous media,” Mar. 2018.
J. Hommel, E. Coltman, and H. Class, “Porosity-Permeability Relations for Evolving Pore Space: A Review with a Focus on (Bio-)geochemically Altered Porous Media,” Transport in Porous Media, vol. 2, no. 124, May 2018.
T. Koch, K. Heck, N. Schröder, H. Class, and R. Helmig, “A new simulation framework for soil-root interaction, evaporation, root growth, and solute transport,” Vadose Zone Journal, Aug. 2018.
D. Gläser, R. Helmig, B. Flemisch, and H. Class, “A discrete fracture model for two-phase flow in fractured porous media,” Advances in Water Resources, vol. 110, Dec. 2017.
S. Kleinknecht, H. Class, and J. Braun, “Experimental study on retardation of a heavy NAPL vapor in partially saturated porous media,” Hydrol. Earth Syst. Sci. Discuss., vol. 21, Mar. 2017.
J. Hommel, A. Ebigbo, R. Gerlach, A. B. Cunningham, R. Helmig, and H. Class, “Finding a balance between accuracy and effort for modeling biomineralization,” Energy Procedia, vol. 97, Nov. 2016.
A. Kissinger, V. Noack, S. Knopf, W. Konrad, D. Scheer, and H. Class, “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), Dec. 2016.
D. Scheer, W. Konrad, H. Class, A. Kissinger, S. Knopf, and V. Noack, “Regional-scale brine migration along vertical pathways due to CO2 injection - Part 1: the participatory modeling approach,” Hydrology and Earth System Sciences (HESS), Dec. 2016.
M. Beck, G. Seitz, and H. Class, “Volume-Based Modelling of Fault Reactivation in Porous Media Using a Visco-Elastic Proxy Model,” Transport in Porous Media, Mar. 2016.
A. Kissinger, V. Noack, S. Knopf, W. Konrad, D. Scheer, and H. Class, “Brine migration along vertical pathways due to CO2 injection - a simulated case study in the North German Basin with stakeholder involvement,” Jun. 2016.
K. Weishaupt, A. Bordenave, O. Atteia, and H. Class, “Numerical Investigation on the Benefits of Preheating for an Increased Thermal Radius of Influence During Steam Injection in Saturated Soil,” Transport in Porous Media, Jan. 2016.
J. Hommel et al., “Investigating the influence of the initial biomass distribution and injection strategies on biofilm-mediated calcite precipitation in porous media,” Transport in Porous Media, vol. 114, no. 2, Dec. 2016.
S. Kleinknecht, H. Class, and J. Braun, “Density-driven migration of heavy NAPL vapor in the unsaturated zone,” Vadose Zone Journal, vol. 14(8), Aug. 2015.
H. Class, L. Mahl, W. Ahmed, B. Norden, M. Kühn, and T. Kempka, “Matching Pressure Measurements and Observed CO2 Arrival Times with Static and Dynamic Modelling at the Ketzin Storage site,” Energy Procedia, vol. 76, Aug. 2015.
D. Scheer, W. Konrad, H. Class, A. Kissinger, S. Knopf, and V. Noack, “Expert involvement in science development: (re-)evaluation of an early screening tool for carbon storage site characterization,” International Journal of Greenhouse Gas Control, vol. 37, Mar. 2015.
J. Hommel et al., “A revised model for microbially induced calcite precipitation: Improvements and new insights based on recent experiments,” Water Resources Research, vol. 51, no. 5, May 2015.
S. U. Gerbersdorf et al., “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. Vol.79.2015, Jun. 2015.
S. Kleinknecht, H. Class, and J. Braun, “Density-Driven Migration of Heavy NAPL Vapor in the Unsaturated Zone,” Vadose Zone Journal, vol. 14, Aug. 2015.
S. U. Gerbersdorf et al., “Anthropogenic Trace Compounds (ATCs) in aquatic habitats - research needs on sources, fate, detection and toxicity to ensure timely elimination strategies and risk management,” Environmental International, vol. 79, Mar. 2015.
P. Schaedle, N. Hubschwerlen, and H. Class, “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, vol. 187, Aug. 2014.
A. Kissinger, V. Noack, S. Knopf, D. Scheer, W. Konrad, and H. Class, “Characterization of reservoir conditions for CO2 storage using a dimensionless Gravitational Number applied to the North German Basin,” Sustainable Energy Technologies and Assessments, vol. 7, Jun. 2014.
J. Hommel, A. B. Cunningham, R. Helmig, A. Ebigbo, and H. Class, “Numerical Investigation of Microbially Induced Calcite Precipitation as a Leakage Mitigation Technology,” Energy Procedia, vol. 40,2013, Aug. 2013.
A. Kissinger et al., “Hydraulic fracturing in unconventional gas reservoirs: risks in the geological system, part 2,” Environmental Earth Sciences, Jun. 2013.
R. Helmig, B. Flemisch, M. Wolff, A. Ebigbo, and H. Class, “Model coupling for multiphase flow in porous media,” Advances in Water Resources, vol. 51, Jul. 2013.
L. Walter, P. J. Binning, and H. Class, “Predicting salt intrusion into freshwater aquifers resulting from CO2 injection - a study on the influence of conservative assumptions,” Advances in Water Resources, vol. 62, Aug. 2013.
T. Kempka et al., “A dynamic flow simulation code intercomparison based on the revised static model of the Ketzin pilot site,” Energy Procedia, vol. 40, Sep. 2013.
R. Juanes and H. Class, “Special issue on computational methods in geologic CO2 sequestration,” Advances in Water Resources, vol. 62, Dec. 2013.
S. Oladyshkin, P. Schröder, H. Class, and W. Nowak, “Chaos expansion based Bootstrap filter to calibrate CO2 injection models,” Energy Procedia, no. 40, Jun. 2013.
T. Lange et al., “Hydraulic fracturing in unconventional gas reservoirs: risks in the geological system, part 1,” Environmental Earth Sciences, Oct. 2013.
S. Oladyshkin, H. Class, and W. Nowak, “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, vol. 17, no. 4, Apr. 2013.
S. Bauer et al., “Modeling, parameterization and evaluation of monitoring methods for CO2 storage in deep saline formations: the CO2-MoPa project,” Environmental Earth Sciences, vol. 67, Sep. 2012.
L. Walter, P. J. Binning, S. Oladyshkin, B. Flemisch, and H. Class, “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, vol. 9, May 2012.
S. Oladyshkin, H. Class, R. Helmig, and W. Nowak, “A concept for data-driven uncertainty quantification and its application to carbon dioxide storage in geological formations,” Advances in Water Resources, vol. 34, 2011.
F. Schäfer, L. Walter, H. Class, and C. Müller, “The regional pressure impact of CO2 storage: a showcase study from the North German Basin,” Environmental Earth Sciences, Dec. 2011.
I. Neuweiler, A. Papafotiou, H. Class, and R. Helmig, “Estimation of effective parameters for a two-phase flow problem in non-Gaussian heterogeneous porous media,” Journal of Contaminant Hydrology, vol. 120–121, no. 1, Jul. 2011.
A. Tatomir, A. Szymkiewicz, H. Class, and R. Helmig, “Modeling two phase flow in large scale fractured porous media with an extended multiple interacting continua method,” Computer Modeling in Engineering & Sciences, Dec. 2011.
S. Oladyshkin, H. Class, R. Helmig, and W. Nowak, “An integrative approach to robust design and probabilistic risk assessment for CO2 storage in geological formations,” Computational Geosciences, vol. 15, no. 3, Dec. 2011.
M. Darcis, H. Class, B. Flemisch, and R. Helmig, “Sequential model coupling for feasibility studies of CO2 storage in deep saline aquifers,” Oil & Gas Science and Technology-Revue de l’IFP, vol. 66, no. 1, Dec. 2011.
L. Walter, S. Oladyshkin, H. Class, M. Darcis, and R. Helmig, “A study on pressure evolution in a sand channel system during CO2 injection,” Energy Procedia, vol. 4, Jun. 2011.
S. O. Ochs, H. Class, A. Färber, and R. Helmig, “Methods for predicting the spreading of steam below the water table during subsurface remediation,” Water Resources Research, vol. 46, Dec. 2010.
A. Kopp, P. J. Binning, K. Johannsen, R. Helmig, and H. Class, “A contribution to risk analysis for leakage through abandoned wells in geological CO2 storage,” Advances in Water Resources, vol. 33, no. 8, Dec. 2010.
T. Kempka et al., “Modelling of CO2 arrival time at Ketzin - Part I,” International Journal of Greenhouse Gas Control, vol. 4, Dec. 2010.
A. Ebigbo, R. Helmig, A. B. Cunningham, H. Class, and R. Gerlach, “Modelling biofilm growth in the presence of carbon dioxide and water flow in the subsurface,” Advances in Water Resources, vol. 33, no. 7, 2010.
M. Darcis, H. Class, and B. Flemisch, “Coupling Models of Different Complexity for the Simulation of CO2 Storage in Saline Aquifers,” Energy Procedia, vol. 1, Jan. 2009.
H. Class et al., “A benchmark study on problems related to CO2 storage in geologic formations: Summary and discussion of the results,” Computational Geosciences, vol. 13, no. 4, Dec. 2009.
A. Kopp, H. Class, and R. Helmig, “Investigations on CO2 storage capacity in saline aquifers - Part 1: Dimensional analysis of flow processes and reservoir characteristics,” International Journal of Greenhouse Gas Control, vol. 3, no. 3, Dec. 2009.
A. Kopp, H. Class, and R. Helmig, “Investigations on CO2 storage capacity in saline aquifers - Part 2: Estimation of storage capacity coefficients,” International Journal of Greenhouse Gas Control, vol. 3, no. 3, Dec. 2009.
A. Kopp, P. Probst, H. Class, S. Hurter, and R. Helmig, “Estimation of CO2 storage capacity coefficients in geologic formations,” Energy Procedia, vol. 1, no. 1, Dec. 2009.
H. Class, H. K. Dahle, and R. Helmig, “Preface (to the Special Issue),” Computational Geosciences, vol. 13, Dec. 2009.
S. Freiboth et al., “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,” vol. 13, no. 3, Dec. 2009.
M. O. Dogan, H. Class, and R. Helmig, “Different concepts for the coupling of porous-media flow with lower-dimensional pipe flow,” Computer Modeling in Engineering & Sciences, vol. 53, no. 3, 2009.
A. Kopp, A. Ebigbo, A. Bielinski, H. Class, and R. Helmig, “Numerical simulation of temperature changes caused by CO2 injection in geological reservoirs,” Carbon dioxide sequestration in geological media - State of the science, no. 59, Dec. 2009.
H. Class, R. Helmig, and I. Neuweiler, “Sequential coupling of models for contaminant spreading in the vadose zone,” Vadose Zone Journal, vol. 7, no. 2, Dec. 2008.
A. Bielinski, A. Kopp, H. Schütt, and H. Class, “Monitoring of CO2 plumes during storage in geological formations using temperature signals: numerical investigation,” no. 2, Apr. 2008.
A. Ebigbo, H. Class, and R. Helmig, “CO2 leakage through an abandoned well: Problem-oriented benchmarks,” vol. 11, no. 2, Dec. 2007.
M. Acosta et al., “Modeling non-isothermal two-phase multicomponent flow in the cathode of PEM fuel cells,” no. 2, Sep. 2006.
H. Class, A. Bielinski, R. Helmig, A. Kopp, and A. Ebigbo, “Numerische Simulation der Speicherung von CO2 in geologischen Formationen,” vol. 78, no. 4, Mar. 2006.
R. Helmig, J. Niessner, and H. Class, “Recent advances in finite element methods for multi-phase flow processes in porous media,” vol. 20, no. 03_04, Dec. 2006.
S. B. Hazra, H. Class, R. Helmig, and V. Schulz, “Forward and inverse problems in modeling of multiphase flow and transport through porous media,” vol. 8, no. 1, Dec. 2004.
H. Class and R. Helmig, “Numerical simulation of nonisothermal multiphase multicomponent processes in porous media - 2. Applications for the injection of steam and air,” vol. 25, no. 5, Dec. 2002.
H. Class, R. Helmig, and P. Bastian, “Numerical simulation of nonisothermal multiphase multicomponent processes in porous media - 1. An efficient solution technique,” vol. 25, no. 5, Dec. 2002.
R. Helmig, H. Class, A. Färber, and M. Emmert, “Heat transport in the unsaturated zone - comparison of experimental results and numerical simulations,” vol. 36, no. 6, Dec. 1998.
R. Helmig et al., “Architecture of the Modular Program System MUFTE-UG for Simulating Multiphase Flow and Transport Processes in Heterogeneous Porous Media,” vol. 2, Dec. 1998.
H. Class, L. Mahl, W. Ahmed, B. Norden, M. Kühn, and T. Kempka, “Matching pressure measurements and observed CO2 arrival times with static and dynamic modelling at the Ketzinstorage site,” 1963.
R. Helmig and H. Class, Grundlagen der Hydromechanik. Shaker Verlag, 2005.
H. Class, A. Kissinger, S. Knopf, W. Konrad, V. Noack, and D. Scheer, “Combined Natural and Social Science Approach for Regional-Scale Characterisation of CO2 Storage Formations and Brine Migration Risks (CO2BRIM),” no. 22, Springer-Verlag, 2015.
R. Helmig et al., “Modellierung des Ausbreitungsverhaltens umwelt- und klimagefährdender Gase im Untergrund,” in Simulation und Visualisierung an der Universität Stuttgart, Universität Stuttgart, Referat für Presse- und Öffentlichkeitsarbeit, 2003.
R. Hinkelmann, H. Sheta, H. Class, E. J. Sauter, R. Helmig, and M. Schlüter, “Numerical Simulation of freshwater, salt water and methane interaction processes in a coastal aquifer,” in IMA Volumes in Mathematics and its Applications, Volume 131: Resource Recovery, Confinement and Remediation of Environmental Hazards, J. Chadam, A. Cunningham, R. E. Ewing, and P. & M. W. Ortoleva, Eds. Springer-Verlag, 2002.
R. Helmig, H. Class, and R. Hinkelmann, “Isothermal and Nonisothermal Multiphase Multicomponent Processes in the Subsurface,” in Zur Beschreibung komplexen Materialverhaltens: Beiträge zur Festschrift anläßlich des 50. Geburtstag von Herrn Prof. Dr.-Ing. W. Ehlers, no. II–7, S. Diebels, Ed. 2001.
R. Hinkelmann, H. Sheta, H. Class, and R. Helmig, “A Comparison of Different Model Concepts for Salt Water Intrusion Processes,” in ModelCARE 99: International Conference on Calibration and Reliability in Groundwater Modeling - Coping with uncertainty, 20.09.1999 - 23.09.1999, ETH Zurich, Switzerland, no. 265, F. Stauffer, W. Kinzelbach, and K. & E. H. Kovar, Eds. IAHS Redbook, 2000.
J. Hommel, A. Phillips, R. Gerlach, A. B. Cunningham, R. Helmig, and H. Class, “Modeling porous medium modification through induced calcite precipitation,” in 7th GACM Colloquium on Computational Mechanics , 11.10.2017 - 13.10.2017, Stuttgart, 2017.
S. Oladyshkin, H. Class, R. Helmig, and W. Nowak, “Data-driven framework for history matching: application to carbon dioxide storage in geological formations,” in European Geosciences Union (EGU) - General Assembly, 03.04.2011 - 08.04.2011, Vienna, Austria, 2011, vol. Vol.13, no. EGU2011-11.
S. Oladyshkin, H. Class, R. Hofmann, and W. Nowak, “Highly efficient tool for probabilistic risk assessment of CCS joint with injection design,” in Computational Methods in Water Resources (CMWR), XVIII International Conference on Water Resources, 21.06.2010 - 24.06.2010, Barcelona, Spain, 2010.
S. Oladyshkin, H. Class, R. Helmig, and W. Nowak, “Data-driven robust design and probabilistic risk assessment: application to underground carbon dioxide storage, Abstract H41L-03,” in AGU Fall Meeting 2010, 13.12.2010 - 17.12.2010, San Francisco, USA, 2010.
S. Oladyshkin, H. Class, R. Helmig, and W. Nowak, “Probabilistic risk assessment for CO2 storage in geological formations: robust design and support for decision making under uncertainty,” in Geophysical Research Abstracts, 2010, vol. Vol.12, no. EGU2010-3559.
R. Helmig et al., “Transfer of modeling concepts for flow and transport processes in porous media systems to biological tissues,” in DFG Expertengespräch Medizintechnik, 06.11.2008 - 07.11.2008, Potsdam, 2008.
R. Helmig, M. Darcis, and H. Class, “Transfer of modeling concepts for flow and transport processes in porous media from subsurface systems to biological tissues,” in ASME International Mechanical Engineering Congress and Exposition, 31.10.2008 - 06.11.2008, Boston, 2008, vol. 12, no. WOS:000265081000004.
A. Kopp, P. Probst, H. Class, S. Hurter, and R. Helmig, “Estimation of CO2 Storage Capacity Coefficients in Geologic Formations,” in 9th International Conference on Greenhouse Gas Control Technologies (GHGT9), 16.11.2008 - 20.11.2008, Washington DC, USA, 2008.
H. Class, A. Ebigbo, and A. Kopp, “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, 2007, no. ScienceReportNo.9.
S. O. Ochs, H. Class, R. Helmig, and M. Acosta, “Simulation of multiphase multicomponent processes in the diffusion layer of PEM fuel cells,” in Eurotherm 81, ALbi, France, 04.06.2007 - 06.06.2007, Albi, France, 2007.
S. Freiboth, H. Class, and R. Helmig, “Numerical Simulation of Multiphase Multicomponent Processes Considering Structural Alterations of Porous Media - a Phenomenological Model,” in Theoretical and Numerical Unsaturated Soil Mechanics, 2007.
S. O. Ochs, H. Class, and R. Helmig, “Fortschritte bei der Entwicklung eines prognosefähigen numerischen Modells zur Simulation der Dampfinjektion in die gesättigte Bodenzone,” in VEGAS - Statuskolloquium 2006, 28.09.2006 - 28.09.2006, Stuttgart, 2006, no. 09_2006.
R. Helmig et al., “Multiphase Flow and Transport Modeling in Heterogeneous Porous Media,” in Progress in Industrial Mathematics at ECMI 2004, 21.06.2004 - 25.06.2004, Eindhoven University of Technology, 2006.
A. Ebigbo, A. Bielinski, A. Kopp, H. Class, and R. Helmig, “Numerical Modeling of CO2 Sequestration with MUFTE-UG,” 2006.
H. Class and S. O. Ochs, “Ein Konzept zur Kopplung numerischer Module für die Simulation von Schadstoffversickerung, -susbreitung und thermischer Sanierung,” in Ressource Untergrund, 10 Jahre VEGAS: Forschung und Technologieentwicklung zum Schutz von Grundwasser und Boden, 28.09.2005 - 29.09.2005, Universität Stuttgart, 2005, no. 145.
P. Greiner, J. Braun, H. Class, H.-P. Koschitzky, J. Schnieders, and L. Stadler, “Numerische Modellierung der Mehrphasen-/Mehrkomponenten-Hydraulik bei der Alkoholspülung,” in Ressource Untergrund, 10 Jahre VEGAS: Forschung und Technologieentwicklung zum Schutz von Grundwasser und Boden, 28.09.2005 - 29.09.2005, Universität Stuttgart, 2005, no. 145.
S. O. Ochs, H. Class, and A. Färber, “Numerische und experimentelle Untersuchung zur Dampfinjektion in die gesättigte Bodenzone,” in Ressource Untergrund, 10 Jahre VEGAS: Forschung und Technologieentwicklung zum Schutz von Grundwasser und Boden, 28.09.2005 - 29.09.2005, Universität Stuttgart, 2005, no. 145.
A. Färber et al., “Dampf-Luft-Injektion zur In-situ-Sanierung der gesättigten Bodenzone: Anwendungsmöglichkeiten und Erfahrungen aus einer PCE-Sanierung in Albstadt,” in VEGAS - Statuskolloquium 2004, 05.10.2004, Universität Stuttgart, 2004, no. 131.
S. Hölzemann, H. Class, and R. Helmig, “A New Concept for the Numerical Simulation and Parameter Identification of Multiphase Flow and Transport Processes in Cohesive Soils,” in Unsaturated Soils: Numerical and Theoretical Approaches - Proceedings of the International Conference “From Experimental Evidence towards Numerical Modelling of Unsaturated Soils”, 18.09.2003 - 19.09.2003, Bauhaus-Universität Weimar, 2004.
S. Hölzemann, H. Class, and R. Helmig, “Numerical Modeling of Multiphase Flow and Transport Processes in Cohesive Soils and Parameter Identification Strategies,” in 15. International Conference on Computational Methods in Water Resources, 13.06.2004 - 17.06.2004, Chapel Hill, North Carolina, USA, 2004.
A. Bielinski, H. Class, and R. Helmig, “Numerische Simulation von CO2-Speicherung im Untergrund,” in 4. Workshop “Porous Media”, 05.12.2002 - 06.12.2002, Blaubeuren, 2003.
H. Jakobs, A. Bielinski, H. Class, and R. Helmig, “Modeling of heterogeneities for twophase flow in the subsurface,” in International Conference on Multifield Problems, 08.04.2002 - 10.04.2002, Stuttgart, 2002, vol. 12, no. WOS:000189408100035.
H. Class, A. Bielinski, and R. Helmig, “CO2-Injektion in geologische Formationen - numerische Berechnungen und erste Überlegungen für großskalige Experimente in VEGAS,” in VEGAS Statuskolloquium, 12.10.2001, Universität Stuttgart, 2002.
R. Helmig, H. Jakobs, and H. Class, “Multiphase flow and transport modeling in heterogeneous porous media,” in 14. International Conference on Computational Methods in Water Resources, 23.06.2002 - 28.06.2002, Delft, The Netherlands, 2002.
H. Class, A. Bielinski, and R. Helmig, “Numerische Simulation von Mehrphasen-Mehrkomponenten-Systemen: Effiziente Algorithmen, Möglichkeiten und Probleme,” in VEGAS Statuskolloquium, 12.10.2001, Universität Stuttgart, 2001.
A. Bielinski, H. Class, H. Jakobs, and R. Helmig, “Numerical Simulation of Desiccation Processes in a Mineral Liner of a Waste-Disposal Site,” in 3. Workshop “Teilgesättigte Böden”, 12.10.2001, Bauhaus-Universität Weimar, 2001.
H. Class and R. Helmig, “Numerische Modellierung von thermisch unterstützter Bodenluftabsaugung,” in VEGAS Statuskolloquium, 12.10.2001, Universität Stuttgart, 1999.
H. Class, “Numerical Simulation of Non-isothermal Steam Injection Processes in NAPL-Contaminated Porous Media,” in 28. IAHR Congress: Hydraulic Engineering for Sustainable Water Resources Management at the Turn of the Millennium, 22.08.1999 - 27.08.1999, Graz, Austria, 1999.
H. Class, “Numerische Untersuchungen zum Gas-Wasser-Verhalten in einem Stollen mit Verschlußbauwerk,” Master thesis, Universität Stuttgart, Institut für Wasserbau, 1997.
H. Class, “Models for non-isothermal compositional gas-liquid flow and transport in porous media,” PhD dissertation, Universität Stuttgart, Institut für Wasserbau, 2008.
H. Class, “Theorie und numerische Modellierung nichtisothermer Mehrphasenprozesse in NAPL-kontaminierten porösen Medien,” PhD dissertation, Universität Stuttgart, Institut für Wasserbau, 2001.
H. Class, A. Kissinger, S. Knopf, W. Konrad, V. Noack, and D. Scheer, “Schlussbericht: Mehrstufige und regionale Charakterisierung potentieller CO2-Speicherformationen unter besonderer Berücksichtigung von Soleaufstiegsrisiken - ein integrierter natur- und sozialwissenschaftlicher Ansatz,” 04/15, Jun. 2015.
N. Zigelli, A. Kissinger, and H. Class, “Modeling the migration of fracturing fluids into shallow groundwater systems - literature review and numerical simulations,” TB09/2014, Jul. 2014.
M. Darcis, B. Flemisch, and H. Class, “CO2-MoPa -- Kopplung von DuMux und OGS zur Verifikation der OGS-Eclipse Kopplung -- Untersuchung von zeitlichen und räumlichen Modellkopplungsstrategien zur Effizienzsteigerung,” 10/12, Jul. 2012.
A. Ebigbo et al., “Darcy-scale modeling of microbially induced carbonate mineral precipitation in sand columns,” W07519, Jul. 2012.
H. Class, K. Brauer, A. Kissinger, L. Walter, M. Darcis, and A. Ebigbo, “Beeinträchtigung von Grundwasser durch Speicherung von Gasen im Untergrund,” 15/2011, Nov. 2011.
A. Ebigbo, H. Class, and R. Helmig, “Numerische Untersuchung zur CO2 Sequestrierung in geologischen Formationen - problemorientierte Benchmarks,” 10_2008, May 2008.
M. O. Dogan, H. Class, and R. Helmig, “Numerische Modellierung von Mehrphasenströmungs- und Transportprozessen bei der Sequestrierung von CO2 in geologischen Formationen,” 09_2007, Jul. 2007.
A. Kopp, H. Class, and R. Helmig, “Treibhausgase in der Bodenfalle,” UNI-Kurier, 99, Jun. 2007.
R. Helmig, H. Class, U. Ölmann, and J. Niessner, “Multiphase Processes in Porous Media,” Springer-Verlag, 28, Sep. 2006.
A. Assteerawatt et al., “MUFTE-UG: Structure, Applications andNumerical Methods,” Oct. 2005.
S. B. Hazra, H. Class, R. Helmig, and V. Schulz, “Forward and Inverse Problems in Modeling of Multiphase Flow and Transport Through Porous Media,” 02_2002, Dec. 2002.
H. Sheta, H. Class, and R. Helmig, “Numerische Simulation von isothermen/ nichtisothermen Mehrphasenströmungen unter Berücksichtigung der Veränderung der Fluideigenschaften,” Mar. 1998.
R. Helmig, A. Färber, H. Class, and M. Emmert, “Heat Transport in the Unsaturated Zone - Comparison of Experimental Results and Numerical Simulations,” 3, Jan. 1998.
M. Emmert, H. Class, and R. Helmig, “Numerische Simulation von isothermen/nichtisothermen Mehrphasenprozessen unter Berücksichtigung der Veränderung der Fluideigenschaften (modular aufgebautes Modellsystem),” 1997/16, Oct. 1997.

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