摘要
利用流体动力学软件对单体与成对出现的半球形干煤棚结构表面的风压分布进行模拟,与刚性模型测压风洞试验结果对比发现,数值风洞模拟结果能够较好地模拟结构表面的风压分布。根据数值风洞获得的表面风压值得到了无干扰与有干扰工况下的分区体型系数以及结构整体的阻力、升力系数,同时,讨论分区体型系数、整体阻力、升力系数随风场条件、风向角以及干扰条件的变化规律。
The characteristics of wind pressures distribution on the single and double hemispherical dry-coal-sheds with day-lighting ceiling were investigated by using CFD.Compared with the wind pressures gained by wind tunnel tests in reference,the CFD results were credible.Base on the CFD results,the influences of terrain types,wind directions and interference conditions on the block shape coefficients and drag force and lift force coefficients were discussed.Finally,the block shape coefficients and drag force and lift force coefficients of the total structure were given in the non-interference and interference conditions,which were suitable for engineering application.
出处
《工业建筑》
CSCD
北大核心
2013年第2期117-120,127,共5页
Industrial Construction
关键词
半球形干煤棚
数值风洞模拟
分区体型系数
整体力系数
dry-coal-sheds hemispherical dome
CFD wind tunnel test
block shape coefficient
force coefficients of the total structure
