摘要
在 Honji和 Sarpkaya等人的实验研究中发现 ,绕圆柱的振荡流并不是简单的二维流动 ,而是存在复杂的三维流态。本文用有限元方法求解原始变量的 Navier- Stokes方程 ,模拟了Re数为 392、Kc数为 2时正弦振荡流绕平面附近圆柱的流动。分析了三维流场结构的特点 。
It were observed by Honji (1981) and Sarpkaya (1986) that the wake induced by an oscillating flow past a circular cylinder is three-dimensional even at low Reynolds numbers. In this paper the Navier-Stokes equations with primitive variables was discretized by the finite element method to simulate the oscillating flow past a circular cylinder near a plane at Re=392 and Kc=2. The flow patterns of the 3D wake were discussed as well as the influence of the presence of the plane boundary.
出处
《水动力学研究与进展（A辑）》
CSCD
北大核心
2002年第1期9-16,共8页
Chinese Journal of Hydrodynamics
基金
国家自然科学基金资助项目 (5 97790 0 5 )
