| 三方柱绕流的大涡模拟及频谱分析 |
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| 引用本文： | 赵心广. 三方柱绕流的大涡模拟及频谱分析[J]. 水科学与工程技术, 2011, 0(4): 28-30 |
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| 作者姓名： | 赵心广 |
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| 作者单位： | 保定市水利水电勘测设计院,河北保定,071000 |
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| 摘 要： | 高雷诺数条件下,无论来流是均匀还是非均匀,多方柱绕流情况下方柱受力及尾流的相互干扰都是相当复杂的.为了研究方柱受力及下游尾流的相互干扰,基于大涡模拟紊流模型对后品字等边布置的三方柱绕流进行了数值模拟,数值模拟结果表明,上游两个方柱的阻力系数要明显小于下游方柱,而上游两方柱升力系数远大于下游方柱,且下游方柱的升力系数基本...
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| 关 键 词： | 方柱绕流 大涡模拟 频谱分析 |
Large Eddy Simulation and Spectrum Analysis of Flow Around Three Square Cylinders |
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| ZHAO Xin-guang. Large Eddy Simulation and Spectrum Analysis of Flow Around Three Square Cylinders[J]. Water Sciences and Engineering Technology, 2011, 0(4): 28-30 |
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| Authors: | ZHAO Xin-guang |
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| Affiliation: | ZHAO Xin-guang(Research Institute of Investigation and Design of water Conservangcy and Hydropower,Baoding 071000,China) |
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| Abstract: | Under high reynolds number conditions,the flow exert force to square cylinder and wake flow interference is very complex whether the incoming flow is uniform or non-uniform.In order to study the force of square cylinder and the interference of wake flow,base on large eddy simulation turbulence model,the flow around three square cylinders of the layout of goods font is simulated.The numerical simulation results show that the drag coefficient of the upstream square cylinders is significantly less than the dow... |
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| Keywords: | flow around square cylinder large eddy simulation spectrum analysis |
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