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

页码：131 / +

页数：2

共 5 条

[1] A unified finite element algorithm for two-equation models of turbulence [J].

Ilinca, F ;

Hetu, JF ;

Pelletier, D .

COMPUTERS & FLUIDS, 1998, 27 (03) :291-310

[2]

KIM JJ, 1978, THESIS STANFORD U

[3]

RODI W, 1981, AFOSR HTTM STANDF C, V3, P1495

[4] A HIGHLY-RESOLVED NUMERICAL STUDY OF TURBULENT SEPARATED FLOW PAST A BACKWARD-FACING STEP [J].

THANGAM, S ;

HUR, N .

INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE, 1991, 29 (05) :607-615

[5]

XIAOHUA WZH, 2005, CHINESE J COMPUTATIO, V24, P344

← 1 →