摘要
用二阶投影法求解二维不可压粘性流体的N -S方程 ,计算了高雷诺数Re=1× 10 5下串列圆柱的非定常绕流 ,得到的阻力系数及斯特劳哈尔数与试验结果吻合良好 ,结合工程实际 。
A second-order projection method is used for solving the N-S equations.Numerically we analyze the unsteady flow around two stationary circular cylinders in tandem arrangement with high Reynolds number.The computed mean drag coefficient and the Strouhal number agree well with the experiment.To apply this method to actual engineering problems,computations are also carried out to simulate the flow around two ribs of arch-bridge.
出处
《同济大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2002年第5期604-608,共5页
Journal of Tongji University:Natural Science
基金
国家自然科学基金重大资助项目 (5 9895 410 )
关键词
串列钝体绕流
数值计算
非定常流
二阶投影法
钢管混凝土拱
斯特劳哈尔数
unsteady flow
second-order projection method
circular cylinders in tandem arrangement
rib of arc-bridge
Strouhal number
