A multitude of different applications is characterized by multi-component processes, where one or multiple fluid phases are composed of several components. Often, and for very different reasons, there are phase changes observed, e.g. due to evaporation and condensation, chemical and biological reaction processes, dissolution or precipitation. Phase change can occur from one fluid phase to another, but also between fluids and solids. Commonly, this is comes along with different kinds of interaction with the flow field: for example, when carbon dioxide dissolves into water it increases the water density and may trigger a convective flow, or when permeability and mechanical rock properties are altered due to a precipitation of calcite as a solid that re-shapes the pore space.
associated research projects
| Title | Description |
|---|---|
| AK-NERO: Working Group Nerochytic Speleogenesis | Department: LH2 Leader: Holger Class |
| SFB 1313, C04: Pore-scale and REV-scale approaches to biological and chemical pore-space alteration in porous media | Duration: 01/2018 - 12/2025 Department: LH2 Leader: Holger Class Funding: DFG |
| 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 |
| Experimental and numerical investigations on density-driven dissolution of CO2 and related carbonate dissolution in karst water | Duration: 11/2022 - 10/2025 Department: LH2 Leader: Holger Class Funding: DFG |
| 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 |
| DIETER: Digitization of mining structures using innovative sensor technology and artificial intelligence | Duration: 01/2024 - 12/2026 Department: LH2 Leader: Martin Schneider, Holger Class, Bernd Flemisch Funding: BMBF |
| Transportberechnungen für die spezifische Freigabe | Duration: 07/2023 - 05/2025 Department: LH2 Leader: Holger Class, Bernd Flemisch Funding: GRS |
| EXC 2075, PN 1-5: Numerical simulations and process analysis of CO2 enrichment in the vadose zone and at the gas-water interface of karstic systems | Duration: 09/2024 - 12/2025 Department: LH2 Leader: Holger Class Funding: DFG |
| GAS-REACT: GAS interchange and REACTive processes in coupled subsurface/atmosphere systems (HE 9610)) | Duration: 01/2024 - 12/2026 Department: LH2 Leader: Holger Class Funding: DFG |
Contact
Holger Class
apl. Prof. Dr.-Ing.Akademischer Oberrat, Deputy Head of the Department