Spatial resolution correction for wall-bounded turbulence measurements

被引:94
|
作者
Smits, A. J. [1 ]
Monty, J. [2 ]
Hultmark, M. [1 ]
Bailey, S. C. C. [3 ]
Hutchins, N. [2 ]
Marusic, I. [2 ]
机构
[1] Princeton Univ, Dept Mech & Aerosp Engn, Princeton, NJ 08544 USA
[2] Univ Melbourne, Dept Mech Engn, Victoria 3010, Australia
[3] Univ Kentucky, Dept Mech Engn, Lexington, KY 40506 USA
基金
澳大利亚研究理事会; 美国国家科学基金会;
关键词
shear layer turbulence; turbulent boundary layers; turbulent flows; HIGH REYNOLDS-NUMBER; PIPE-FLOW; LAYERS; CHANNEL;
D O I
10.1017/jfm.2011.19
中图分类号
O3 [力学];
学科分类号
08 ; 0801 ;
摘要
A correction for streamwise Reynolds stress data acquired with insufficient spatial resolution is proposed for wall-bounded flows. The method is based on the attached eddy hypothesis to account for spatial filtering effects at all wall-normal positions. This analysis reveals that outside the near-wall region the spatial filtering effect scales inversely with the distance from the wall, in contrast to the commonly assumed scaling with the viscous length scale. The new formulation is shown to work very well for data taken over a wide range of Reynolds numbers and wire lengths.
引用
收藏
页码:41 / 53
页数:13
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