| 后台阶流动的非均匀格子Boltzmann方法模拟 |
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| 引用本文： | 王广超,廖国勇.后台阶流动的非均匀格子Boltzmann方法模拟[J].计算机与现代化,2007(1):6-8,18. |
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| 作者姓名： | 王广超 廖国勇 |
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| 作者单位： | 华东交通大学基础科学学院,江西,南昌,330013;华东交通大学基础科学学院,江西,南昌,330013 |
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| 基金项目： | 华东交通大学校科研和教改项目 |
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| 摘 要： | 使用非均匀格子Boltzmann方法对后台阶流动进行了数值模拟.将流体流动区域划分为不同的子区域:对于每个子区域内部,分布函数使用均匀网格计算;对于区域边界,分布函数采用嵌套网格方法进行处理.数值计算结果与其它实验、数值结果相吻合.
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| 关 键 词： | 格子Boltzmann方法 非均匀网格 后台阶流 |
| 文章编号： | 1006-2475（2007）01-0006-03 |
| 收稿时间： | 2006-02-23 |
| 修稿时间： | 2006-02-23 |
Non-uniform Lattice Boltzmann Method Simulation of Backward-facing Step Flow |
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| WANG Guang-chao,LIAO Guo-yong.Non-uniform Lattice Boltzmann Method Simulation of Backward-facing Step Flow[J].Computer and Modernization,2007(1):6-8,18. |
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| Authors: | WANG Guang-chao LIAO Guo-yong |
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| Affiliation: | School of Basic Science, East China Jiaotong University, Nanchang 330013, China |
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| Abstract: | A numerical solution for two dimension incompressihle flow over a backward-facing step is investigated by using a non-uniform lattice Boltzmann method. The basic idea of the simulation is to divide the flow domain into some regular sub-domains, the distribution function can be computed by uniform lattice Boltzmann method within sub-domains and by nested boundary scheme on the boundaries. The present results agree well with the numerical and experimental data available in the literature. |
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| Keywords: | lattice Boltzmann methods mon-uniform lattice backward-facing step flow |
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