Main research subject

Modelling interface-driven multiphase processes

Interface-driven processes occur in different applications, like in salinization at the interface soil/air, transport in fuel cells at the interface between porous layer and gas channels, in root systems in the soil with interfaces between vessel-like structures and porous media. It is similar in transport systems for therapeutic agents in the human body and many other fields. Very often, the problem is characterized by an interaction of free and porous-medium flow. The quantification of transfer fluxes of mass, momentum and energy is crucial for the above-mentioned applications. In the course of these processes, the flow dynamics in the porous domain and in the free flow exhibit a strong interdependency, which is often controlled by mechanisms at the common interface. This is key to an improved understanding and the development of appropriate models for applications like those mentioned above.

associated research projects

Title Description
3D-Bild: Combined quantitative three-dimensional imaging and predictive modeling of soil water movement and root water uptake Duration: 07/2018 - 06/2021
Department: LH2
Leader: Rainer Helmig
Funding: DFG
EVASAL: Environmental applications of evaporative salt precipitation in porous media: numerical modeling and experimental investigations Duration: 03/2019 - 12/2020
Department: LH2
Leaders: Emna Mejri, Rainer Helmig
Funding: DAAD
EXC 2075, PN 1-5: Dispersion concept for interface closures in the context of coupling free-flow and porous-media multiphase flow on the REV scale Duration: 01/2020 - 06/2023
Department: LH2
Leaders: Rainer Helmig, Martin Schneider
Funding: DFG
BOYSEN: Modeling thermochemical heat storage Duration: 01/2019 - 12/2021
Department: LH2
Leaders: Rainer Helmig, Holger Class
Funding: Boysen Foundation
SPP 2089: Modelling self-organisation in the rhizosphere Duration: 09/2018 - 08/2021
Department: LH2
Leader: Rainer Helmig
Funding: DFG
SFB 1313, A02: Advanced modelling concepts for coupling free flow with porous-media flow Duration: 01/2018 - 12/2021
Department: LH2 and ITLR
Leaders: Rainer Helmig, Bernhard Weigand
Funding: DFG
SFB 1313, I04: Evaporation and isotopologue transport under the influence of surface roughness Duration: 01/2021 - 12/2021
Department: LH2
Leader: Rainer Helmig
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

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Rainer Helmig

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