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力学与实践 ›› 2010, Vol. 32 ›› Issue (2): 16-20.doi: 10.6052/1000-0879-2010-109

• 应用研究 • 上一篇    下一篇

上海世博会气象馆平均风压数值模拟研究

张悦 黄本才 汪丛军 周建龙   

  1. 上海同济大学航空航天与力学学院
  • 收稿日期:2010-03-18 修回日期:1900-01-01 出版日期:2010-04-08 发布日期:2010-04-08

Research on numerical simulation of mean wind pressure of Shanghai EXPO Meteo World Pavilion

Yue ZHANG   

  • Received:2010-03-18 Revised:1900-01-01 Online:2010-04-08 Published:2010-04-08

摘要: 采用数值模拟方法对上海世博会气象馆进行了平均风数值模拟,比较了四种较适合于结构风工程的RNG - 、SST- - 、SSG-RSM和BSL-RSM湍流物理模型,包括体型系数、表面合力、合力矩及湍动能结果,同时结合风流动特性分析了其规律性和差别的原因,并得到SST-k-ω、BSL-RSM与SSG-RSM模型各有优势,而RNG - 模型稍差的结论。最后研究了有无干扰情况下的场馆表面平均风压系数,分析了风干扰的原因。

关键词: 雷诺平均法;湍流物理模型;平均风压;风干扰

Abstract: Numerical simulation method is adopted to simulate the mean wind pressure of Shanghai EXPO Meteo World Pavilion. Four turbulence models (RNG k-ε, SST-k-ω, SSG-RSM and BSL-RSM), appropriate for structural wind engineering, are applied in this paper and compared shape coefficient, overall superficial forces and moments, and turbulence energy. In addition, with the analysis on regularity and difference of wind flow characteristics, conclusion is obtained that SST-k-ω ,BSL-RSM and SSG-RSM has different advantage but RNG - k-εis the worse. Finally, mean wind pressure coefficient of the pavilion is researched under the conditions of with and without interference. The reason of wind interference is also analyzed.

Key words: RANS, turbulence model, mean wind pressure, wind interference