Large eddy simulation of Res influence on the quasi-periodic motions of the turbulent flow over a backward-facing step

摘要：

a second order Euler-Taylor-Galerkin finite element method is used as the space discretizingscheme for large eddy simulation of the ow over a backward facing step ow at Re=47 625. Timeprocess of pressure at a given point were used to analyze the in uence of Reynolds number on thequasi-periodic motions of large scale eddies in the ow. As the result show, the higher the Reynoldsnumber, the higher the quasi-frequency.

关键词： backward-facing step flow quasi-periodic motion large eddy simulation the second order ETG finite element method Reynolds number

作者: W.F.Zhu X.H.Wang

作者单位: Zhejiang University of Science and Technology, Hangzhou 310012, China Institute of Fluid Engineering, College of Mechanical and Energy Engineering, Zhejiang University,Ha

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）