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Lattice Boltzmann 3D flow simulations on a metallic foam
Authors:Djomice Beugre  Sbastien Calvo  Michel Crine  Pierre Marchot
Affiliation:a Department of Applied Chemistry, University of Lige, B-4000 Lige, Belgium
b Department of Electrical Engineering and Computer Science, University of Lige, B-4000 Lige, Belgium
Abstract:
In this paper a lattice Boltzmann method (LBM) is used to simulate isothermal incompressible flow in a RCM-NCX-1116 metallic foam. The computational technique is a multiple relaxation time (MRT) lattice Boltzmann equation model. Computer aided X-ray micro-tomography is used to obtain 3D images of the metallic foam, providing the geometry and information required for LB simulations of a single phase flow.Pressure drops are computed and successfully compared to experimental measures and correlated with Ergun’s equation. Invariance of Ergun’s parameters A and B with the sampling rate of the images is observed.
Keywords:Lattice Boltzmann method   X-ray micro-tomography   Metallic foam   Ergun&rsquo  s equation
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