Lattice-BGK Methods for Simulating Incompressible Fluid Flows

Yu Chen () and Hirotada Ohashi ()
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Yu Chen: Department of Quantum Engineering and Systems Science, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113, Japan
Hirotada Ohashi: Department of Quantum Engineering and Systems Science, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113, Japan

International Journal of Modern Physics C (IJMPC), 1997, vol. 08, issue 04, 793-803

Abstract: The lattice-Bhatnagar-Gross-Krook (BGK) method has been used to simulate fluid flow in the nearly incompressible limit. But for the completely incompressible flows, two special approaches should be applied to the general model, for the steady and unsteady cases, respectively. Introduced by Zouet al.,1the method for steady incompressible flows will be described briefly in this paper. For the unsteady case, we will show, using a simple numerical example, the need to solve a Poisson equation for pressure.

Keywords: Lattice-BGK Method; Unsteady Incompressible Flow; One-Dimensional Flow; Poisson Equation (search for similar items in EconPapers)
Date: 1997
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DOI: 10.1142/S0129183197000680

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