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OALib Journal期刊
ISSN: 2333-9721
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圆柱绕流水动力学特性的数值模拟
DOI: 10.3969/j.issn.1671-7627.2012.03.028, PP. 134-138
Keywords: 低re,圆柱绕流,水动力学特性
Abstract:
应用计算流体动力学软件fluent对低雷诺数(re)(re≤300)下圆柱绕流问题进行数值模拟。采用分区结构化网格及层流模型求解不可压缩navier-stokes方程,在未施加任何扰动的条件下获得了圆柱绕流2种特殊的绕流场,系统分析了壁面压力系数、平均阻力系数、脉动阻力、升力系数及旋涡脱落频率等水动力学特性参数随re数变化的规律,结果与实验研究吻合较好。
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