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以某电厂660 MW吸收塔结构为研究对象,利用ADINA及FLUENT有限元软件对吸收塔结构开展了数值风洞分析。研究结果表明:对于该吸收塔结构,NE风向与180°风向属于最不利风向,0°风向时结构相对较安全;随着风速增大,加速度响应随塔高呈增大趋势,应力呈减小趋势,塔体下部开口位置有应力集中现象,且风速对结构应力和位移的影响较小;多塔结构之间有较强的相互干扰现象,风场上游结构的周围风场受下游结构影响较小,而下游结构周围风场受上游结构的影响较大。
Taking the structure of 660 MW absorber in a power plant as the research object, numerical wind tunnel analysis of absorber structure was carried out by using ADINA and FLUENT finite element software. The results show that the wind direction of NE and the wind direction of 180 ° belong to the most unfavorable wind direction and the structure is relatively safe at 0 ° wind direction. With the increase of wind speed, the acceleration response decreases with the increase of tower height, There is a stress concentration phenomenon in the lower part of the tower body, and the wind speed has little influence on the structural stress and displacement. There is strong mutual interference between the multi-tower structures. The wind field around the upstream structure of the wind farm is less affected by the downstream structure, The wind field around the downstream structure is greatly affected by the upstream structure.