Numerical simulation of the turbulent wake behind a normal flat plate

被引：90

作者：

Narasimhamurthy, Vagesh D. ^{[1
]}

Andersson, Helge I. ^{[1
]}

机构：

[1] Norwegian Univ Sci & Technol NTNU, Fluids Engn Div, Dept Energy & Proc Engn, N-7491 Trondheim, Norway

来源：

INTERNATIONAL JOURNAL OF HEAT AND FLUID FLOW | 2009年 / 30卷 / 06期

关键词：

Uniform plate; Parallel-sided plate; DNS; Turbulence; Wake flow; Normal flat plate; BLUNT TRAILING EDGE; CIRCULAR-CYLINDER; 2-DIMENSIONAL CYLINDERS; REYNOLDS-NUMBERS; FLOW; 3-DIMENSIONALITY; VORTEX; INSTABILITY; TRANSITION; MODEL;

D O I：

10.1016/j.ijheatfluidflow.2009.09.002

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The three-dimensional wake flow behind a flat plate placed normal to the free stream has been investigated by means of direct numerical simulations. The Reynolds number Re based on the homogeneous inflow velocity and the uniform width d of the plate was 750. Coherent vortices were alternately shed from the sides of the plate with a frequency corresponding to a Strouhal number 0.168. The wake was distinctly turbulent downstream of the plate whereas the mean recirculation bubble extended 1.96d downstream. A steady 2D mean flow and the accompanying Reynolds stresses were obtained by averaging in time and along the span of the plate. These Reynolds-averaged statistics exhibited the same qualitative features as corresponding data from cylinder wakes. (C) 2009 Elsevier Inc. All rights reserved.

引用

页码：1037 / 1043

页数：7

共 28 条

[1] INVESTIGATION OF FLOW BEHIND A 2-DIMENTIONAL MODEL WITH A BLUNT TRAILING EDGE AND FITTED WITH SPLITTER PLATES [J].