哈尔滨工程大学学报2016，Vol.37Issue(8)：1143-1150,8.DOI:10.11990/jheu.201505084
高雷诺数圆柱绕流分离的旋转控制
Rotational control of flow separation for flow past a rotating cylinder at high Reynolds number
摘要
Abstract
To examine high-Reynolds⁃number flow field characteristics, we used large eddy simulation ( LES) to numerically simulate the flow past a rotating cylinder at Re = 3 900, 1.4 × 105, and 1.0×106. First, we used a typical flow past a non⁃rotating cylinder as an example for calculation, and compared the results with those from rel⁃evant research to verify the accuracy of our calculation method and results. Then, we simulated the flow past a cyl⁃inder with different spin ratiosαvarying from 0 to 4, respectively. The numerical results show that the rotation effect can effectively suppress vortex shedding and inhibit the generation of turbulent flows with different Reynolds num⁃bers, and that the separation vortex become smaller with increases in the rotational speed and Reynolds number. In addition, the smaller the Reynolds number, the greater the lift⁃drag ratio. Lastly, the drag and lift force values are small and the variation trend is not obvious in the supercritical region, and the effect of the viscous force becomes smaller when the Reynolds number is increased.关键词
高雷诺数/大涡模拟/旋转圆柱/圆柱绕流/旋转控制Key words
high Reynolds number/large eddy simulation/rotating cylinder/flow past a cylinder/rotational control分类
通用工业技术引用本文复制引用
何颖,杨新民,陈志华,易文俊..高雷诺数圆柱绕流分离的旋转控制[J].哈尔滨工程大学学报,2016,37(8):1143-1150,8.基金项目
总装预研基金项目（9140C3007081005）． （）
