LATTICE BOLTZMANN SIMULATION OF DOUBLE DIFFUSIVE NATURAL CONVECTION

CHINESE JOURNAL OF COMPUTATIONAL PHYSICS ›› 2002, Vol. 19 ›› Issue (6): 483-487.

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LATTICE BOLTZMANN SIMULATION OF DOUBLE DIFFUSIVE NATURAL CONVECTION

GUO Zhao-li, LI Qing, ZHENG Chu-guang

National Laboratory of Coal Combustion, Huazhong University of Science and Technology, Wuhan 430074, China

Received:2001-04-04 Revised:2001-10-24 Online:2002-11-25 Published:2002-11-25

Abstract

Abstract: A lattice Boltzmann model is proposed for the double diffusive natural convection system.The flow in a square cavity driven by a temperature gradient and a concentration gradient is then simulated using the present model.The influence of the concentration field on the flow patterns is investigated,and some quantitative comparisons with other studies are made.It is shown that the present LB model can predict the flow characteristics correctly.

Key words: lattice Boltzmann method, double diffusive natural convection, heat and mass transfer

CLC Number:

GUO Zhao-li, LI Qing, ZHENG Chu-guang. LATTICE BOLTZMANN SIMULATION OF DOUBLE DIFFUSIVE NATURAL CONVECTION[J]. CHINESE JOURNAL OF COMPUTATIONAL PHYSICS, 2002, 19(6): 483-487.

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LATTICE BOLTZMANN SIMULATION OF DOUBLE DIFFUSIVE NATURAL CONVECTION

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