Numerical estimation of the critical Reynolds number for flow past one square cylinder with symmetric geometry boundary condition

摘要：

based on the calculation of the lid driven cavity flow at Re=100, a second order Euler-Taylor-Galerkin finite element method was used to estimate the critical Reynolds number for flow past one square cylinder with zero attact degree through direct time integration of the NS equationes. The role of blockage (ratio of the width of cylinder to the lateral width of the domain) on such flow was analysed at Re=100. It was found that the averged St tend to be constant as blockage took the value larger than 50. Thr critical Reynolds number is then computed. As the result shown, it was estimated that ReCr=40.11.

关键词： critical Reynolds number direct time integration blockage Euler-Taylor-Galerkin finite element method

作者: X.H.Wang W.F.Zhu Z.Y.He

作者单位: Institute of Fluid Engineering, College of Mechanical and Energy Engineering, Zhejiang University,Ha Zhejiang University of Science and Technology, Hangzhou,310012 China School of Municipal & Environmental Engineering, Harbin Institute of Technology, Harbin, 150090, Chi

会议类型: 国际会议

会议名称: The Fifth International Conference on Fluid Mechanics(第五届国际流体力学会议)

会议地点: 上海

会议语种:英文

在线出版日期: 2007-08-15（万方平台首次上网日期，不代表论文的发表时间）