| Lattice Bhatnagar-Gross-Krook Simulations of Hydromagnetic Double-Diffusive Convection in a Rectangular Enclosure with Opposing Temperature and Concentration Gradients |
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| 引用本文： | 马昌凤 施保昌. Lattice Bhatnagar-Gross-Krook Simulations of Hydromagnetic Double-Diffusive Convection in a Rectangular Enclosure with Opposing Temperature and Concentration Gradients[J]. 中国物理快报, 2006, 23(7): 1842-1845 |
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| 作者姓名： | 马昌凤 施保昌 |
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| 作者单位： | [1]Department of Mathematics, Huazhong University of Science and Technology, Wuhan 430074 [2]College of Mathematics and Computer Science, Fujian Normal University, Fuzhou 350007 [3]Department of Computer Science Mathematics, Guilin University of Electronic Technology, Guilin 541004 |
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| 基金项目： | Supported by the National Natural Science Foundation of China under Grant No 10361003, the China Postdoctoral Science Foundation under Grant No 2004036133, and the Cuangxi Science Foundation under Grant No 0640165. |
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| 摘 要： | ![]()
The temperature-concentration lattice Bhatnagar-Gross-Krook （TCLBGK） model with a robust boundary scheme is developed for two-dimensional hydromagnetic double-diffusive convective flow of a binary gas mixture in a rectangular enclosure, in which the upper and lower walls are insulated, while the left and right walls are constant temperature and constant concentration, and a uniform magnetic field is applied in the x-direction. In the model the velocity, temperature and concentration fields are solved by three independent LBGK equations, which are combined into a coupled equation for the whole system. In our simulations, we take the Prandtl number Pr = 1.0, the Lewis number Le = 2.0, the thermal Rayleigh number RaT = 10^5, and the aspect ratio A = 2 for the enclosure. The numerical results are found to be in good agreement with those of previous studies.
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| 关 键 词： | 晶格 磁流体动力学 双散布性对流 反向温度 浓缩梯度 |
| 收稿时间： | 2006-02-14 |
| 修稿时间： | 2006-02-14 |
Lattice Bhatnagar-Gross-Krook Simulations of Hydromagnetic Double-Diffusive Convection in a Rectangular Enclosure with Opposing Temperature and Concentration Gradients |
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| MA Chang-Feng, SHI Bao-Chang. Lattice Bhatnagar-Gross-Krook Simulations of Hydromagnetic Double-Diffusive Convection in a Rectangular Enclosure with Opposing Temperature and Concentration Gradients[J]. Chinese Physics Letters, 2006, 23(7): 1842-1845 |
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| Authors: | MA Chang-Feng SHI Bao-Chang |
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| Abstract: | ![]()
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