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

被引：1
|
作者：
Zhu, W. F. [1 ]
Wang, X. H. [2 ]
机构：
[1] Zhejiang Univ Sci & Technol, Hangzhou 310012, Zhejiang, Peoples R China
[2] Zhejiang Univ, Inst Fluid Engn, Coll Mech & Energy Engn, Hangzhou 310027, Peoples R China
来源：
NEW TRENDS IN FLUID MECHANICS RESEARCH: PROCEEDINGS OF THE FIFTH INTERNATIONAL CONFERENCE ON FLUID MECHANICS | 2007年
关键词：
backward-facing step flow; quasi-periodic motion; large eddy simulation; the second order ETC finite element method; Reynolds number;
D O I：
10.1007/978-3-540-75995-9_33
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
A second order Euler-Taylor-Galerkin finite element method is used as the space discretizing scheme for large eddy simulation of the flow over a backward facing step flow at Re=47 625. Time process of pressure at a given point were used to analyze the influence of Reynolds number oil the quasi-periodic motions of large scale eddies in the flow. As the result show, the higher the Reynolds number, the higher the quasi-frequency.
引用
收藏
页码：131 / +
页数：2
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