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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 hydrodynamic software was used to simulate the air pressure distributions on the surface of single-body and paired hemispherical dry coal roof structures. Compared with the results obtained by the wind tunnel test of rigid model, it was found that the numerical wind tunnel simulation results could well simulate the structure Surface pressure distribution. According to the surface wind pressure value obtained from the numerical wind tunnel, the zonal body coefficient and the drag coefficient and lift coefficient of the whole structure are obtained under disturbance and interference conditions. At the same time, the zoning body coefficient, overall resistance and lift coefficient are discussed. Angle and the variation of interference conditions.