Title: Incompressible lattice Boltzmann model for porous flows with large pressure gradient
Authors: Zhaoli Guo, C.G. Zheng, B.C. Shi
Addresses: National Laboratory of Coal Combustion, Huazhong University of Science and Technology, Wuhan 430074, PR China. ' National Laboratory of Coal Combustion, Huazhong University of Science and Technology, Wuhan 430074, PR China. ' National Laboratory of Coal Combustion, Huazhong University of Science and Technology, Wuhan 430074, PR China
Abstract: To drive a fluid in a porous media, a large pressure drop is usually required. Under such cases, the standard lattice Boltzmann equation, which uses the equation of state of ideal gases, may fail to work due to compressibility effect. In this paper, we propose an incompressible lattice Boltzmann model for porous flows, which can overcome this difficulty. Numerical results demonstrate that the model can use a large pressure without the compressibility effect.
Keywords: porous flows; lattice Boltzmann method; LBM; incompressible fluids; large pressure gradient; modelling.
Progress in Computational Fluid Dynamics, An International Journal, 2009 Vol.9 No.3/4/5, pp.225 - 230
Published online: 01 May 2009 *
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