The next SFB 1313 public milestone presentation will be held by Katharina Heck about "Nonequilibrium processes in coupled free-flow porous-medium systems".
Summary
Exchange processes across a porous-medium free-flow interface occur in a wide range of environmental, technical and bio-mechanical systems. The primary objectives of this project are to analyse and improve the theory, as well as offer solution methods for non-isothermal, multi-phase, multi-component flow and transport processes at a porous-medium free-flow interface and investigate the influence of these processes on both the porous medium and free-flow region.
One main focus of the doctoral thesis is to investigate the transfer of multi-component gas mixtures in such a coupled system, including analysing the validity of Ficks’s Law and a comparison with the Maxwell-Stefan description.
Additionally non-equilibrium processes like thermal non-equilibrium and chemical non-equilibrium will be investigated, especially for the description of evaporation processes. Thermodynamic equilibrium is a standard assumption when formulating coupling conditions for the porous- medium free-flow interface. Relaxing this assumption leads to the need for new coupling conditions.
Radiation is a main driving force of evaporation in natural systems and plays a key role in the transfer processes. Therefore another focus of this work is including radiation in the coupling conditions for the porous-medium free-flow interface.
Title: Nonequilibrium processes in coupled free-flow porous-medium systems.
Advisor: Rainer Helmig
Date: Thursday, 25th October 2018
Time: 1 pm
Place: Pfaffenwaldring 61, MML, U1.003