| 大跨屋盖风压场的本征正交分解与重构适应性研究 |
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| 引用本文： | 李寿科,李寿英,陈政清,黄韬.大跨屋盖风压场的本征正交分解与重构适应性研究[J].湖南大学学报(自然科学版),2011,38(6):20-26. |
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| 作者姓名： | 李寿科 李寿英 陈政清 黄韬 |
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| 作者单位： | 湖南大学风工程试验研究中心,湖南长沙,410082 |
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| 基金项目： | 国家自然科学基金资助项目(50708035) |
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| 摘 要： | 对3类典型屋盖(封闭式方形平屋盖、封闭式曲面屋盖和开合式曲面屋盖)进行了刚性模型风洞测压试验,分析了典型风向角下的平均及脉动风压系数分布.利用POD方法对3类屋盖的风压场进行了分解,并对平屋盖风压场进行了POD重建.结果表明:斜风向封闭式平屋盖的POD分解性能最优,开合式曲面屋盖次之,封闭式曲面屋盖最差.3类屋盖的第1...
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| 关 键 词： | 风洞 封闭式平屋盖 封闭式曲面屋盖 开合式曲面屋盖 本征正交分解 |
Proper Orthogonal Decomposition and Reconstruction of Wind Field for Large-span Roofs |
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| LI Shou-ke,LI Shou-ying,CHEN Zheng-qing,HUANG Tao.Proper Orthogonal Decomposition and Reconstruction of Wind Field for Large-span Roofs[J].Journal of Hunan University(Naturnal Science),2011,38(6):20-26. |
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| Authors: | LI Shou-ke LI Shou-ying CHEN Zheng-qing HUANG Tao |
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| Institution: | LI Shou-ke,LI Shou-ying,CHEN Zheng-qing,HUANG Tao(Wind Engineering Research Center,Hunan Univ,Changsha,Hunan 410082,China) |
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| Abstract: | Wind tunnel tests were carried out to measure the wind pressure on the closed flat roof,closed curved roof and retractable roof.The characteristics of mean and fluctuating wind pressure coefficients were particularly studied.The wind pressure fields of the roofs were decomposed in the proper orthogonal decomposition method,and the wind pressure field of flat roof was reconstructed.It has been shown that the performance of POD of oblique wind flat roof behaves best among all the three roofs,retractable roof ... |
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| Keywords: | wind tunnels closed flat roof closed curved roof retractable roof Proper Orthogonal Decomposition(POD) |
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