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On computer simulation of fluid-porous structure interaction problems for a class of filtration problems

: Iliev, Oleg; Iliev, Dimitar; Kirsch, Ralf


Lirkov, I.:
Large-Scale Scientific Computing. 10th International Conference, LSSC 2015 : Sozopol, Bulgaria, June 8-12, 2015. Revised Selected Papers
Cham: Springer International Publishing, 2015 (Lecture Notes in Computer Science 9374)
ISBN: 978-3-319-26519-3 (Print)
ISBN: 978-3-319-26520-9
International Conference on Large-Scale Scientific Computing (LSSC) <10, 2015, Sozopol>
Bundesministerium für Bildung und Forschung BMBF
Programme Inter Carnot-Fraunhofer (PICF); 01SF0804; FPSI Filt
Conference Paper
Fraunhofer ITWM ()
fluid structure interaction; flow in deformable porous media; filtration simulation; poroelasticity; industrial filtration problem

Fluid-Porous Structure Interaction, FPSI, problem is first formulated and discussed in 3D in connection with modeling of flow processes in pleated filters. Solving the 3D problem is computationally expensive, therefore for a subclass of problems reduced model is considered, namely, the 3D poroelasticity problem is approximated by a poroelastic shell. Because resolving the geometry of a pleat is very important for obtaining accurate solution, interface fitted general quadrilateral grid is introduced. It is difficult to generate good quality grid in such complicated domains, therefore a discretization approach, which is robust on rough grids is selected, namely, multipoint flux approximation method. The coupled FPSI problem is solved with sequential approach, what allows to reuse an existing flow solver. Results from numerical simulations are presented and discussed.