標題: Simulation of lid-driven cavity flows by parallel lattice Boltzmann method using multi-relaxation-time scheme
作者: Wu, JS
Shao, YL
機械工程學系
Department of Mechanical Engineering
關鍵字: lattice Boltzmann BGK method;multi-relaxation-time;single-relaxation-time
公開日期: 30-十一月-2004
摘要: Two-dimensional near-incompressible steady lid-driven cavity flows (Re= 100-7,500) are Simulated using multi-relaxation-time (MRT) model in the parallel lattice Boltzmann BGK Bhatnager-GrossKrook method (LBGK). Results are compared with those using single-relaxation-time (SRT) model in the LBGK method and previous simulation data using Navier-Stokes equations for the same flow conditions. Effects of variation of relaxation parameters in the MRT model, effects of number of the lattice points, improved computational convergence and reduced spatial oscillations of solution near Geometrically singular points in the flow field using LBGK method due to MRT model are highlighted in the study. In summary, lattice Boltzmann method using MRT model introduces much less spatial oscillations near geometrical singular points, which is important for the successful simulation of higher Reynolds number flows. Copyright (C) 2004 John Wiley Sons, Ltd.
URI: http://dx.doi.org/10.1002/fld.787
http://hdl.handle.net/11536/25623
ISSN: 0271-2091
DOI: 10.1002/fld.787
期刊: INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN FLUIDS
Volume: 46
Issue: 9
起始頁: 921
結束頁: 937
顯示於類別:期刊論文


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  1. 000224996400002.pdf