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CFD and Experimental Study of Wind Pressure Distribution on the High-Rise Building in the Shape of an Equilateral Acute Triangle

机译：等平坦急性三角形形状的高层建筑风压分布的CFD及实验研究

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摘要

There is a lack of detailed information about wind flow and distribution of wind pressure around atypically shaped high-rise buildings. The national standard EN 1991-1-4 Eurocode 1 used to determine the effects of wind on the territory of Slovakia (and indeed other countries of the European Union) does not have a procedure for determining the effects of wind on objects of triangular shape. This presents a problem for designers and engineers, as there exist no generally binding/valid rules to follow when performing the wind effect analysis. This paper shows the procedure of identification and results of the external wind pressure coefficient for the triangularly shaped high-rise building. Two methods of calculation have been chosen for this purpose. First, experimental measurements were performed on a scaled model of the building cross-section in the wind tunnel. Subsequently, software simulations were performed on the same scaled model in the CFD (computational fluid dynamics) program ANSYS CFX. Results of wind pressure were obtained for two directions of wind flow measured in 16 sampling points distributed irregularly around the circumference of the model. Results were mutually compared and verified. At the end, the wind flow effects on a real-size triangular high-rise building in the built-up area performed by software simulation are shown.
机译：缺乏有关风力流量和风力压力分布的详细信息，周围形状的高层建筑物。国家标准EN 1991-1-4欧元建1用于确定风对斯洛伐克境内的影响（以及欧盟其他国家）没有确定风对三角形物体的影响的程序。这给设计师和工程师带来了一个问题，因为在执行风效分析时没有任何绑定/有效规则就没有绑定/有效规则。本文显示了三角形高层建筑的外部风压系数的识别和结果的过程。为此目的选择了两种计算方法。首先，对风隧道中的建筑横截面的缩放模型进行实验测量。随后，在CFD（计算流体动态）程序ANSYS CFX中的相同缩放模型上执行软件仿真。获得风压的结果，用于在围绕模型的圆周的16个采样点中测量的16个采样点中测量的风流量。结果相互比较和验证。最后，示出了通过软件模拟执行的内置区域中的实尺寸三角高层建筑的风力流动效应。

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