| 分块法研究圆柱绕流升阻力 |
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| 引用本文： | 邓见,黄钰期,任安禄. 分块法研究圆柱绕流升阻力[J]. 力学与实践, 2004, 26(1): 24-26 |
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| 作者姓名： | 邓见 黄钰期 任安禄 |
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| 作者单位： | 浙江大学力学系,杭州,310027 |
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| 基金项目： | 国家自然科学基金项目(19972061和10272094)资助 |
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| 摘 要： | 使用新的分块耦合方法，分别对单圆柱和串列双圆柱绕流进行了数值模拟．对于单圆柱绕流，低Re下计算所得到的定常涡尺寸与实验非常接近．对于串列双圆柱绕流，研究分析了改变双圆柱中心间距对上下游圆柱的升阻力系数和脉动频率所产生的影响，计算结果与实验非常吻合，为进一步研究涡致振动提供了依据．
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| 关 键 词： | 分块法 圆柱绕流 流体力学 串列双圆柱 区域分解法 分块耦合 数值模拟 定常绕流 |
| 修稿时间： | 2002-09-29 |
Domain decomposition method for the calculation of circular cylinder drag and lift in flows |
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| DENG Jian HUANG Yuqi REN Anlu. Domain decomposition method for the calculation of circular cylinder drag and lift in flows[J]. Mechanics and Engineering, 2004, 26(1): 24-26 |
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| Authors: | DENG Jian HUANG Yuqi REN Anlu |
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| Abstract: | The purpose of this paper is to present an improved domain decomposition method, and to simulate the flow around a single cylinder and two cylinders in tandem arrangement. For the calculations of flow around a single cylinder, the size of steady vortex at low Re here was close to the results obtained from experiments. For the calculations of flow around two cylinders, research was applied to discuss the lift coefficient, drag coefficient and the frequency of lift curve in various spacing. The results we obtained in this paper are consistent with experiments, and provide us with some basic knowledge about vortex-induced vibration. |
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| Keywords: | flow around circular cylinders two cylinders with tandem arrangement domain decomposition method |
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