毛青峰¹，张金团²，梁东波³，赵明贵¹
    (1 三峡大学，宜昌430080；2 武汉中和工程质量检测有限公司，武汉430080；3 武汉市政检测中心，武汉430000)

[摘要] 采用雷诺方程与 К-ε 模型对单圆柱绕流进行了紊流数值模拟，分析了圆柱的风动力系数及圆柱周围的流场。圆柱的风力系数呈现高频变化并具有较明显的周期变化，圆柱的存在影响了流场，且在圆柱后存在着回流。
[关键词] 圆柱绕流； К-ε 模型；风动力系数

    Numerical simulation of the flow around a single column in turbulent flow
    Mao Qingfeng¹,  Zhang Jintuan²,  Liang Dongbo³,  Zhao Minggui¹
    (1 Three Gorges University,Yichang 430080,China; 2 Wuhan Zhonghe Project Quality Inspection, Ltd.,Wuhan 430080,China; 3 Wuhan Municipal Engineering Test Center,Wuhan 430000,China)

Abstract: Reynolds equation and the  К-ε model is employed to numerical simulation the flow around a single column in turbulent flow, the wind power coefficient and the flow field around the column is analysis. Cylinder wind power coefficient showed a more high-frequency changes and the cycle change is obvious, the presence of column affected flow field around the column, and the reflux is existence after the column.
Keywords: flow around column;  К-ε model;  wind power coefficient