论文部分内容阅读
采用Realizable k-ε湍流模型对某火电厂150m高烟囱的平均风压进行了CFD数值模拟,研究了不同风向角情况下烟囱表面平均风压的分布规律,得到了烟囱表面分块体型系数沿高度变化规律,通过流场显示对周边建筑对烟囱表面风压分布的影响机理进行了分析,还将烟囱整体体型系数与荷载规范值进行了对比。本文结果可为该类高耸结构的抗风设计提供参考。
The Realizable k-ε turbulence model was used to simulate the average wind pressure of 150m high chimney in a thermal power plant. The distribution of average wind pressure on the chimney surface under different wind direction angles was studied. The influence mechanism of the surrounding buildings on the wind pressure distribution on the chimney surface is analyzed by the flow field. The overall body coefficient of the chimney is also compared with the load specification. The results of this paper can provide references for the wind-resistant design of such towering structures.