大跨度体育馆风效应的大涡模拟及风洞试验的对比研究

文章利用大涡模拟（large eddy simulation，LES）湍流模型对合肥某大跨度体育馆的风效应进行研究，得到体育馆表面平均风压和脉动风压的分布规律，并与刚性模型测压风洞试验数据进行对比，验证数值模拟的可靠性。分析结果表明，副馆及周边建筑群对主馆平均风压和脉动风压分布有较大影响，数值模拟得到的风压系数与风洞试验结果吻合较好。研究结果可为大跨度体育场馆的抗风设计提供技术参考。

Wind effect on a large-span gymnasium in Hefei City was investigated using the large eddy simulation (LES) turbulence model. The distribution laws of the average wind pressure and fluctuating wind pressure on the surface of the gymnasium were obtained. Comparisons between the wind tunnel test results of the rigid model and the numerical simulation ones were made to verify the effectiveness of the LES turbulence model. The results indicate that the average wind pressure and fluctuating wind pressure of the main gymnasium are greatly affected by the auxiliary gymnasium and surrounding buildings. The numerical simulation is basically consistent with the wind tunnel test. The presented results are valuable for the wind-resistant design of large-span structures.