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    毛青峰¹，張金團(tuán)²，梁東波³，趙明貴¹
    (1 三峽大學(xué)，宜昌430080；2 武漢中和工程質(zhì)量檢測(cè)有限公司，武漢430080；3 武漢市政檢測(cè)中心，武漢430000)

[摘要] 采用雷諾方程與 К-ε 模型對(duì)單圓柱繞流進(jìn)行了紊流數(shù)值模擬，分析了圓柱的風(fēng)動(dòng)力系數(shù)及圓柱周圍的流場(chǎng)。圓柱的風(fēng)力系數(shù)呈現(xiàn)高頻變化并具有較明顯的周期變化，圓柱的存在影響了流場(chǎng)，且在圓柱后存在著回流。
[關(guān)鍵詞] 圓柱繞流； К-ε 模型；風(fēng)動(dòng)力系數(shù)

    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