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| 基于LES方法圆柱绕流三维数值模拟 | |
| 引用本文： | 姚熊亮,方媛媛,戴绍仕,王领. 基于LES方法圆柱绕流三维数值模拟[J]. 水动力学研究与进展(A辑), 2007, 22(5): 564-572 |
| 作者姓名： | 姚熊亮 方媛媛 戴绍仕 王领 |
| 作者单位： | 哈尔滨工程大学船舶工程学院,黑龙江哈尔滨,150001;青岛科技大学,山东青岛,266061 |
| 摘 要： | 该文采用计算流体软件CFX5中Large-eddy simulation(LES)模型计算了均匀流场中三维圆柱绕流的水动力特性。使用有限体积法对三维N-S方程进行求解。数值模拟着重研究了高雷诺数时展向各截面的压力、阻力、升力及涡管特性。数值计算结果表明:展向各截面柱体受力关于中截面对称且小于二维情况,柱体周围流场呈现明显的三维特性。 |
| 关 键 词： | LES方法 三维圆柱绕流 水动力特性 |
| 文章编号： | 1000-4874（2007）05-0564-09 |
| 修稿时间： | 2007-01-19 |
Three-dimensional numerical simulation of the flow past a circular cylinder based on LES method |
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| YAO Xiong-liang,FANG Yuan-yuan,DAI Shao-Shi,WANG Ling. Three-dimensional numerical simulation of the flow past a circular cylinder based on LES method[J]. Chinese Journal of Hydrodynamics, 2007, 22(5): 564-572 | |
| Authors: | YAO Xiong-liang FANG Yuan-yuan DAI Shao-Shi WANG Ling |
| Abstract: | This paper presents the calculations of hydrodynamic characteristics of a rigid single circular cylinder in three dimensional incompressible uniform cross flow by using Large-eddy simulation method of CFX5.Solution of the three dimensional N-S equations were obtained by the finite volume method.The numerical simulation focused on investigating the characteristics of the pressure distribution(drag and lift force.) and the vortex tube at high Reynolds number.The results of calculation show that the forces of every section along the span of cylinder are symmetrical with respect to the middle section,and smaller than two dimensional cases.Moreover the flow around the cylinder obviously appears three dimensional characteristics. |
| Keywords: | LES method flow past tree dimensional circular cylinder hydrodynamic characteristics |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |