摘要
分别采用风洞测试及CFD数值模拟手段对某大型储煤仓群体风效应进行了研究,基于刚性模型测压试验,分别测试了储煤仓表面的外部风压,进而对群体圆壳结构表面的平均体型系数分布、风压均方根分布等进行分析,给出了可直接用于主体结构设计的抗风设计参数。基于CFD数值模拟,计算得到关键风向角下煤仓周围流场分布情况,并通过比较煤仓表面的平均体型系数分布对模拟结果进行验证。
Wind tunnel test and CFD numerical simulation of wind-induced loads have been performed on large coal storehouse groups. Mean pressure on the dome surfaces were obtained in the rigid model test. Based on the wind tunnel test,distribution of the mean shape co- efficients and wind pressure RMS were analyzed,and also the parameters,witch can be used directly in the structural design,were calculated by using the wind load district method. Based on the CFD numerical simulation,airflow around the coal storehouse under several crucial wind directions was obtained. Comparing the results with those from wind tunnel test,the CFD numerical simulation method was validated.
出处
《广东土木与建筑》
2010年第3期16-18,共3页
Guangdong Architecture Civil Engineering
关键词
风洞试验
数值模拟
干扰效应
圆壳结构
wind tunnel test
numerical simulation
interference effects
dome structures
