| 雷暴冲击风荷载的大涡模拟 |
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| 引用本文： | 汤卓,吕令毅.雷暴冲击风荷载的大涡模拟[J].空气动力学学报,2011,29(1). |
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| 作者姓名： | 汤卓 吕令毅 |
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| 作者单位： | 东南大学土木工程学院RC&PC教育部重点实验室,江苏南京,210096 |
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| 摘 要： | 雷暴冲击风具有同常规的大气边界层风完全不同的风场特征.为研究雷暴冲击风场中建筑物的风荷载,采用大涡模拟(LES)方法对方形截面高层建筑进行了雷暴冲击风场数值模拟,获得了高层建筑在雷暴冲击风作用下的风荷载参数.同时,对雷暴冲击风场进行了数值模拟,所得结果与理论结果吻合良好,验证了方法的可靠性.
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| 关 键 词： | 雷暴冲击风 大涡模拟 高层建筑 风荷载参数 |
Large eddy simulation of downburst wind load |
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| TANG Zhuo,LU Ling-yi.Large eddy simulation of downburst wind load[J].Acta Aerodynamica Sinica,2011,29(1). |
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| Authors: | TANG Zhuo LU Ling-yi |
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| Institution: | TANG Zhuo,LU Ling-yi (Key Laboratory for RC & PC Structures of Ministry of Education,Southeast University,Nanjing 210096,China) |
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| Abstract: | Velocity profiles and characteristics in a thunderstorm downburst are significantly different from that of an atmospheric boundary layer wind.Large Eddy Simulation(LES) method is employed to investigate wind loads on high-rise building in a downburst.Drag and pressure coefficients are obtained by numerical simulation.In addition,the wind field of a downburst is studied,and the results are compared with the data obtained from empirical models. |
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| Keywords: | thunderstorm downburst LES high-rise building wind load |
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