Large scale lattice Boltzmann simulation for the coupling of free and porous media flow

Beitrag bei einer Tagung
(Originalarbeit)


Details zur Publikation

Autor(en): Fattahi E, Waluga C, Wohlmuth BI, Rüde U
Verlag: Springer
Jahr der Veröffentlichung: 2016
Tagungsband: High Performance Computing in Science and Engineering
ISBN: 978-3-319-40361-8
Sprache: Englisch


Abstract


In this work, we investigate the interaction of free and porous media flow by large scale lattice Boltzmann simulations. We study the transport phenomena at the porous interface on multiple scales, i.e., we consider both, computationally generated pore-scale geometries and homogenized models at a macroscopic scale. The pore-scale results are compared to those obtained by using different transmission models. Two-domain approaches with sharp interface conditions, e.g., of Beavers--Joseph--Saffman type, as well as a single-domain approach with a porosity depending viscosity are taken into account. For the pore-scale simulations, we use a highly scalable communication-reducing scheme with a robust second order boundary handling. We comment on computational aspects of the pore-scale simulation and on how to generate pore-scale geometries. The two-domain approaches depend sensitively on the choice of the exact position of the interface, whereas a well-designed single-domain approach can significantly better recover the averaged pore-scale results.


FAU-Autoren / FAU-Herausgeber

Fattahi, Ehsan
Lehrstuhl für Informatik 10 (Systemsimulation)
Rüde, Ulrich Prof. Dr.
Lehrstuhl für Informatik 10 (Systemsimulation)


Autor(en) der externen Einrichtung(en)
Technische Universität München (TUM)


Zitierweisen

APA:
Fattahi, E., Waluga, C., Wohlmuth, B.I., & Rüde, U. (2016). Large scale lattice Boltzmann simulation for the coupling of free and porous media flow. In High Performance Computing in Science and Engineering. Ostrava, CZ: Springer.

MLA:
Fattahi, Ehsan, et al. "Large scale lattice Boltzmann simulation for the coupling of free and porous media flow." Proceedings of the High Performance Computing in Science and Engineering, Ostrava Springer, 2016.

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Zuletzt aktualisiert 2018-19-09 um 14:38