均匀来流中旋转圆柱黏性绕流的数值研究  

NUMERICAL STUDY OF VISCOUS FLOW PAST A ROTATING CIRCULAR CYLINDER IN A UNIFORM STREAM

作　　者：陆夕云[1] 庄礼贤[1] 

机构地区：[1]中国科学技术大学近代力学系

出　　处：《力学学报》1994年第2期233-238,共6页Chinese Journal of Theoretical and Applied Mechanics

基　　金：国家自然科学基金

摘　　要：从不可压非定常Ｎ－Ｓ方程出发，首次数值求解了均匀来流中圆柱作周向旋转振荡的黏性绕流问题。探讨了旋转角速度振幅、振荡频率及Ｒｅ数等因素对流场结构及其非定常演化过程的影响，并根据计算结果，给出了在旋转振动频率。速度振幅平面内流场涡结构的分区图。A viscous flow past a rotating oscillating circular cylinder in a uniformstream is numerically investigated using the Navier-Stokes equations.The emphasis of thisstudy is on the influence of frequency,amplitude and Reynolds number upon the flowfieldstructures and their evolution.A parameter map is designed in the frequency-amplitudeplane,indicating the classification of vortex structures in the near wake.

关 键 词：非定常流动 粘性绕流 流体力学 

分 类 号：O357[理学—流体力学]