基于雷诺平均的结构表面风压模拟

Pressure Coefficient Simulation Based on Reynold Average Method

数值模拟是确定建筑物表面风压的主要手段之一,文章根据计算流体动力学理论,给出了一个基于雷诺平均的45度双坡屋面表面平均风压的数值模拟结果。数值模拟以商业软件CFD为平台,并添加了自编C语言程序以模拟来流风场。数值模拟结果与同济大学TJ-2风洞试验结果吻合较好。

This paper presents the results of numerical simulation of wind perssure on a 45 degree gable roof. The pressure eoefiqeient from simulation is compared and verified against data from the scale wind tunnel test done in TJ - 2 wind tunnel. The numerical simulation employed the eommercial CFD code, FLOW -3D, with additional user C coding added to model the wind profile.