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Lattice Bhatnagar-Gross-Krook Simulations of Turbulent Natural Convection in a Cavity |
| SHI Bao-Chang1;GUO Zhao-Li2;WANG Neng-Chao1 |
| 1Parallel Computing Institute, Huazhong University of
Science and Technology, Wuhan 430074
2National Laboratory of Coal Combustion, Huazhong University of Science and Technology, Wuhan 430074
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| Cite this article: |
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SHI Bao-Chang, GUO Zhao-Li, WANG Neng-Chao 2002 Chin. Phys. Lett. 19 515-517 |
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Abstract A thermal lattice Bhatnagar-Gross-Krook (LBGK) model with a robust boundary scheme is developed for the Boussinesq incompressible fluids. In the model the velocity and temperature fields are solved by two independent LBGK equations which are combined into a coupled one for the whole system. The two-dimensional natural convection flow of air in a differentially heated cavity of aspect ratio 4 is simulated for the Rayleigh number up to 1010. The numerical results are found to be in good agreement with those of previous studies.
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| Keywords:
47.11.+j
44.25.+f
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Published: 01 April 2002
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