| 基于Lattice Boltzmann方法的圆柱绕流大涡模拟 |
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| 引用本文： | 郭照立,郑楚光,柳朝晖. 基于Lattice Boltzmann方法的圆柱绕流大涡模拟[J]. 工程热物理学报, 2002, 23(4): 479-481 |
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| 作者姓名： | 郭照立 郑楚光 柳朝晖 |
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| 作者单位： | 华中科技大学煤燃烧国家重点实验室,湖北,武汉,430074;华中科技大学煤燃烧国家重点实验室,湖北,武汉,430074;华中科技大学煤燃烧国家重点实验室,湖北,武汉,430074 |
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| 基金项目： | 国家重点基础研究专项经费资助项目（No.G1999022207）,国家自然科学基金资助项目（No.50006003） |
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| 摘 要： | Lattice Boltzmann(LB)方法是近年来出现的一种流体计算的新方法,在流体力学及相关领域取得了很大的成功。但LB方法在模拟湍流流动时常常引起计算的不稳定。本文基于一种结合大涡模型的LB方法对圆柱绕流问题进行的模拟,并与其他文献的实验结果和计算结果进行对比。计算表明:这种混合LB方法能获得比较满意的结果。
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| 关 键 词： | Lattice Boltzmann方法 大涡模拟 亚格子模型 |
| 文章编号： | 0253-231X(2002)04-0479-03 |
| 修稿时间： | 2002-01-18 |
LARGE EDDY SIMULATION OF FLOW PAST A CIRCULAR CYLINDER BASED ON LATTICE BOLTZMANN METHOD |
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| GUO Zhao-Li ZHENG Chu-Guang LIU Zhao-Hui. LARGE EDDY SIMULATION OF FLOW PAST A CIRCULAR CYLINDER BASED ON LATTICE BOLTZMANN METHOD[J]. Journal of Engineering Thermophysics, 2002, 23(4): 479-481 |
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| Authors: | GUO Zhao-Li ZHENG Chu-Guang LIU Zhao-Hui |
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| Abstract: | The lattice Boltzmann(LB) method is a new method for computational fluid dynamics, and has achieved great success in fluid dynamics and related fields. However, as applied to turbulent flows, the LB method often encounters numerical instability. In this paper, the flow over a circular cylinder is simulated based on the LB method coupled with a large eddy model. Comparison with other experimental and numerical results are also performed. It is shown that the agreement is satisfactory. |
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| Keywords: | Lattice Boltzmann method large eddy simulation subgrid model |
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