中文摘要：

空冷支架结构下部为大直径群柱，上部为钢桁架平台，结构抗风设计时许多参数还不清楚。为掌握该类结构风压分布规律，对1：150的刚性模型，进行风洞试验研究。同时利用FLUENT6．1流体软件对结构管柱所处风场进行数值模拟，获取不同工况下管柱的整体体形系数。详细介绍风洞试验结果与管柱表面风压试验数据处理方法，将试验结果与数值模拟结果进行对比，验证了CFD数值模拟技术的可行性。

英文摘要：

Under the support structure system of air cooled condenser there are large-diameter group columns, the proposed wind parameters in present load code can＇ t be used directly in the wind resistance design of this kind of structure. A rigid model with 1：150 scaling factor was made, and wind tunnel test was carried out to study the wind pressure distribution on the large-diameter columns. In order to obtain the body coefficient of the large-diameter column, FLUENT 6.1 software was used to simulate the wind field of the structure. Wind tunnel test for wind pressure distribution on pipe column surface and test data processing were presented in detail. The feasibility of CFD numerical simulation in wind resistance design of structure was verified by comparing the results of wind tunnel test with those of the simulation.