高雷诺数下双圆柱绕流的数值模拟

Numerical simulation of flow around two cylinders at high Reynolds number

本文使用表面涡法研究高雷诺数下不同排列方式双圆柱绕流的流动状态。计算了双圆柱在并列、串列及级列的情况下的各种流动结构 ,涡街的变化及作用在圆柱上的受力情况。本文结果清楚地描述了双圆柱绕流复杂的流动状况 ,计算结果与实验显示的流动状况十分相似 。

This paper presents the results on the numerical simulation of flow around two circular cylinders under various arrangements at high Reynolds number based on the surface vortex method. Two cylinders are respectively arranged in side-by-side,tandem and staggered ways. The numerical results are close to experimental ones. The resulting lift,drag coefficients agree with experimental data.