| Lattice Boltzmann Simulation for the Optimized Surface Pattern in a Micro-Channel |
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| 作者姓名： | 王金凤 刘扬 许友生 吴锋民 |
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| 作者单位： | [1]Department of Physics, Zhejiang Normal University, Jinhua 321004 [2]Department of Mechanical Engineering, The Hong Kong Polytechnic University, Hong Kong |
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| 基金项目： | Supported by the National Natural Science Foundation of China under Grant No 10572130, the Research Grants Council of the Government of the HKSAR under Grant No PolyU5231/06E, the National Basic Research Programs of China under grant 2006CB708612. |
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| 摘 要： | Based on the Bhatangar-Gross-Krook （BGK） models, numerical simulation using the lattice Boltzmann model is performed to investigate the optimized surface pattern in a micro-channel. In order to simulate the practical situation correctly, a slip/no-slip boundary condition is applied with making several assumptions. To assess the validity and efficiency of the model, one benchmark problem with considering the surface patterns is studied. Numerical results show the value of rms velocity Vrms increases with the increasing ratio β and larger Reynolds number Re, higher fluctuation of the rms oscillating velocity. Furthermore, the results show that a good mixing effect can be obtained when Re is large enough and the ratio β is about 1.618,which is the appropriate choice, i.e. the well known golden section phenomenon.
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| 关 键 词： | 晶体 玻尔兹曼算法 最优化 表面模式 |
| 收稿时间： | 2007-3-15 |
| 修稿时间： | 2007-03-15 |
Lattice Boltzmann Simulation for the Optimized Surface Pattern in a Micro-Channel |
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| WANG Jin-Feng,LIU Yang,XU You-Sheng,WU Feng-Min.Lattice Boltzmann Simulation for the Optimized Surface Pattern in a Micro-Channel[J].Chinese Physics Letters,2007,24(10):2898-2901. |
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| Authors: | WANG Jin-Feng LIU Yang XU You-Sheng WU Feng-Min |
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| Affiliation: | 1.Department of Physics, Zhejiang Normal University, Jinhua 321004 ; 2.Department of Mechanical Engineering, The Hong Kong Polytechnic University, Hong Kong |
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| Abstract: | |
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| Keywords: | 47 55 Mh 03 40 Kf 02 70 -c |
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