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通过运用计算流体动力学软件FLUENT对有局部开洞的高层建筑风荷载特性进行了风洞实验和数值模拟研究,得到了不同风向角下洞口周边风压系数风布以及风环境变化.本次风洞试验主要在大气边界层风洞中进行,主要对模型进行了测压试验.数值模拟采用realizable k-ε湍流模型,使用SIMPLEC算法分析了4种工况下贯穿开洞周围风压系数和周围风环境特性.研究结果表明:风压系数在洞口一侧增大,另一侧减小,影响区域的大小接近洞口尺寸.当风向角与建筑呈45°时,洞口内风速达到最大值,可以看出在高层建筑上安置风力发电机能够有效利用风能.
The wind tunnel experiment and numerical simulation are carried out on the wind load characteristics of tall buildings with partial openings by using the computational fluid dynamics software FLUENT, and the wind pressure distributions and the wind environment changes around the openings at different wind angles are obtained. The hole test is mainly carried out in the atmospheric boundary layer wind tunnel, and the pressure measurement test is mainly carried out on the model.Numerical simulation uses the realizable k-ε turbulence model and the SIMPLEC algorithm to analyze the wind pressure coefficient around and around the opening under the four conditions Wind environment characteristics.The results show that the wind pressure coefficient increases on one side of the hole and decreases on the other side, and the size of the affected area approaches the size of the hole.When the wind direction angle is 45 ° with the building, the wind speed in the hole reaches the maximum value, It is seen that the placement of wind turbines in high-rise buildings enables the efficient use of wind energy.