越南国家体育场屋盖平均风压及风环境影响数值模拟  

Numerical simulation of wind pressure distribution and wind environment on the roof of National Stadium of Vietnam

作　　者：汪丛军[1] 黄本才[1] 张昕[1] 徐晓明 林高 

机构地区：[1]同济大学固体力学教育部重点实验室,上海200092 [2]上海建筑设计研究院,上海200041

出　　处：《空间结构》2004年第2期35-39,54,共6页Spatial Structures

摘　　要：本文给出了越南国家体育场双挑屋盖平均风压分布的数值模拟结果,并将60°风向下数值模拟平均风压系数与风洞实验结果进行了比较,两者大体上是吻合的.随后给出90°风向下贴近屋盖面上数值模拟湍动能,以此分析悬挑屋盖面上脉动风压分布规律,且用风洞实验的脉动风压均方根值结果进行验证.最后由越南国家体育场单边屋盖和双边屋盖数值模型,进行了风环境影响的研究,以考察有无上风向屋盖对下风屋盖的影响.The numerical simulation study of mean wind pressure on the roof of National Stadium of Vietnam was carried out in this paper.The comparison of the coefficient of mean wind pressure on the roof with the results of wind tunnel test in the 60° direction shows that they are consistent with each other.Then the result of turbulence kinetic energy of numerical simulation near the roof in the 90°　direction was present,which was used to analyse the rule of distribution of fluctuating wind pressure on the cantilevered roof,and was compared with the root value of fluctuating wind pressure of wind tunnel test.Finally the model of the unilateral roof was built to compare with that with the bilateral roof.The research of wind environment was made to discuss the influence of windward building.

关 键 词：体育场 风环境 数值模拟 湍动能 脉动风压 双挑屋盖 风洞实验 

分 类 号：TU312.1[建筑科学—结构工程]