Reynolds number effectson wind pressure distribution of large-span roof structure

被引：0
|
作者：
Zhang J. [1 ,2 ]
Li T. [1 ,2 ]
Yang Q. [1 ,2 ]
机构：
[1] School of Civil Engineering, Beijing Jiaotong University, Beijing
[2] Beijing's Key Laboratory of Structural Wind Engineering and Urban Wind Environment, Beijing
来源：
Zhang, Jian (zhangjian@bjtu.edu.cn) | 2016年 / Harbin Institute of Technology卷 / 48期
关键词：
Computation fluid dynamics; Fluctuation wind pressure coefficient; Large-span roof structure; Mean wind pressure coefficient; Reynolds number effect;
D O I：
10.11918/j.issn.0367-6234.2016.06.006
中图分类号：
学科分类号：
摘要：
Reynolds numbers have great effects on the pressure distribution of large-span roof structure. To explore these issues, Large Eddy Simulation (LES) numerical method was adopted to calculate mean and fluctuation wind pressure distributions. The pressure values, flow separation and reattachment patterns were examined by corresponding experiment data. Results indicate that the pressure distribution changed dramatically with different Reynolds numbers. Pressure distribution keep srelatively stable in low Reynolds number flow field, while for high Reynolds number flow, pressure varies rapidly at the leading edge area of the roof and gradually decreases to a constant value. The simulation results prove that Reynolds numbers have critical effects on the pressure distribution of the large-span roof structures. © 2016, Editorial Board of Journal of Harbin Institute of Technology. All right reserved.
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页码：38 / 42
页数：4
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