Large eddy simulation of turbulent flow in porous media |
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| Affiliation: | 1. Lehrstuhl für Chemische Reaktionstechnik, Universität Erlangen-Nürnberg, Egerlandstr. 3, 91058 Erlangen, Germany;2. Anwenderzentrum VerTec, Zentralinstitut für Neue Materialien und Prozesstechnik, Universität Erlangen-Nürnberg, Dr.-Mack-Str. 81, 90762 Fürth, Germany;1. Department of Flow, Heat and Combustion Mechanics, Faculty of Engineering and Architecture, Ghent University, Sint-Pietersnieuwstraat 41-B4, 9000 Ghent, Belgium;2. Flanders Make, Belgium |
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| Abstract: | An LES (large eddy simulation) study was conducted using one of standard numerical models for a porous medium, namely, a flow through a periodic array of square cylinders. The LES results were processed to extract macroscopic results such as the macroscopic turbulent kinetic energy and the macroscopic pressure gradient. These macroscopic results are compared against those obtained using conventional models of turbulent kinetic energy and its dissipation rate, so as to examine the validity of extending the conventional two equation models of turbulence to the flow in porous media. The spectrum of turbulence was also examined to appreciate the onset of turbulence. |
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