| 结合亚格子模型的Lattice-Boltzmann算法 |
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| 引用本文： | 罗寅,张阿漫,朱永凯,徐珊珊.结合亚格子模型的Lattice-Boltzmann算法[J].中国舰船研究,2010,5(1):10-13. |
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| 作者姓名： | 罗寅 张阿漫 朱永凯 徐珊珊 |
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| 作者单位： | 哈尔滨工程大学船舶工程学院,黑龙江,哈尔滨,150001 |
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| 摘 要： | 介绍一种亚格子模型与LB(Lattic-Boltzmann)方法相结合的算法,并用其对亚临界雷诺数情况下的圆柱绕流问题进行数值模拟,得到流场的流线图以及圆柱表面的压力系数。通过与实验值相比较,发现数值结果与实验值是比较吻合的,证明该算法可以用于计算雷诺数较大的流体问题,同时具有LB方法计算效率高的优点。
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| 关 键 词： | 格子Boltzmann方法 亚临界雷诺数 圆柱绕流 |
Combination of the Lattice-Boltzmann Method and the Sub-grid Model |
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| Luo Yin Zhang A-man Zhu Yong-kai Xu Shan-shan College of Shipbuilding Engineering,Harbin Engineering University,Harbin ,China.Combination of the Lattice-Boltzmann Method and the Sub-grid Model[J].Chinese Journal of Ship Research,2010,5(1):10-13. |
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| Authors: | Luo Yin Zhang A-man Zhu Yong-kai Xu Shan-shan College of Shipbuilding Engineering Harbin Engineering University Harbin China |
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| Institution: | Luo Yin Zhang A-man Zhu Yong-kai Xu Shan-shan College of Shipbuilding Engineering,Harbin Engineering University,Harbin 150001,China |
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| Abstract: | An algorithm to combine the Lattice-Boltzmann (LB) method and the sub-grid model is introduced and is used to simulate the flow around a cylinder under subcritical Reynolds number. The obtained streamline of the flow field and the pressure coefficient around the cylinder are found to agree well with the data from tests. The agreement indicates that the discussed method suits those problems with relatively high Reynolds number and inherits the computation efficiency of the LB method. |
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| Keywords: | Lattice Boltzmann method subcritical Raynolds number flow around cylinder |
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