Title: Region Coupling Algorithms in OpenFoam
Authors: Kiss, Matthias 
Bösenhofer, Markus  
Schatzl, Magdalena 
Harasek, Michael  
Keywords: multi-region simulation; region coupling; OpenFoam®; boundary conditions; computational fluid dynamics; two-fluid model
Issue Date: Dec-2020
Book Title: Proceedings of the 16th Minisymposium Verfahrenstechnik and 7th Partikelforum (TU Wien, Sept. 21/22, 2020) 
Region coupling is an interesting approach to combine different solvers in complex multiphysics problems. It is usually employed to couple the temperature between solids and fluids. In order to simulate a porous medium in a fluid flow it is necessary to couple temperature, pressure, species concentration and velocity of a fluid and a two-phase fluid. Such a coupling was implemented in OpenFoam® 7 based on the loose coupling approach. In order to achieve a high quality of the loose coupling the influence of grid size and number of solver iterations were investigated. The coupled approach is shown to perform better with increasing system sizes than a pure two‑fluid simulation. However, its accuracy depends on additional iterations for the coupling.
URI: http://hdl.handle.net/20.500.12708/16624
DOI: 10.34726/544
Organisation: E166-02-2 - Forschungsgruppe Fluiddynamische Simulation (CFD) 
License: CC BY 4.0 CC BY 4.0
Publication Type: Inproceedings
Appears in Collections:Conference Paper

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