结构工程师2024，Vol.40Issue(2)：110-117,8.
七里河体育场罩棚风压分布数值模拟研究
Numerical Simulation of Wind Pressure Distribution in Canopy of Qilihe Stadium
黄兆升 1黄锐 2王栋2
作者信息
- 1. 甘肃省建筑设计研究院有限公司,兰州 730030||兰州理工大学土木工程学院,兰州 730050
- 2. 甘肃省建筑设计研究院有限公司,兰州 730030
- 折叠
摘要
Abstract
Based on ANSYS-CFX 19.0 software platform and Lanzhou Qilihe Stadium as the engineering background,this paper uses SST k-ω turbulence model to numerically simulate the surface wind pressure distribution characteristics under 12 wind angles of the stadium canopy,and analyzes the influence of wind angles and surrounding buildings on wind pressure distribution.The distribution law of the wind pressure on the surface of the canopy is obtained,and the characteristics of the flow field around the canopy are discussed.Finally,according to the structure of the canopy and the characteristics of wind pressure distribution,the zonal wind pressure coefficient of the canopy surface under the most unfavorable wind direction and the calculation method of the design wind load of the canopy are given.The results show that the wind field and surface wind pressure around the center of the stadium are obviously affected by the surrounding disturbance buildings,and the numerical simulation results are consistent with the law of the flow around the blunt body.Wind direction has a great influence on wind load.The separation of incoming flow and vortex shedding are different under different wind direction.The maximum negative wind pressure zone appears at the leading-edge corner of the roof along the wind direction,and the positive pressure zone appears at the front end of the roof facing the wind direction.The simulation results can be used in practical projects.关键词
体育场/ANSYS-CFX/SST k-ω湍流模型/数值模拟/风压分布/体型系数Key words
stadium/ANSYS-CFX/turbulence model/numerical simulation/wind pressure distribution/shape coefficient引用本文复制引用
黄兆升,黄锐,王栋..七里河体育场罩棚风压分布数值模拟研究[J].结构工程师,2024,40(2):110-117,8.
