EFFECT OF WIRE SEPARATION ON X-PROBE MEASUREMENTS IN A TURBULENT-FLOW

被引：43

作者：

ZHU, Y

ANTONIA, RA

机构：

[1] Department of Mechanical Engineering, University of Newcastle, N.S.W.

来源：

JOURNAL OF FLUID MECHANICS | 1995年 / 287卷

关键词：

D O I：

10.1017/S0022112095000929

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

The effect of the separation between hot wires in a crossed wire or X-probe on Reynolds stress measurements has been studied analytically and experimentally. Wyngaard's (1968) spectral analysis, which assumes isotropic turbulence, has been modified to include the effect of the tangential velocity component and possible asymmetries of the probe. The relaxation of the assumption of isotropy to one of homogeneity allows corrections to be made to Reynolds stress measurements obtained when the separation between the wires is in the spanwise direction. Measurements with two inclined hot wires in the central region of a fully developed turbulent channel flow provide reasonable support for the modified analysis. In the anisotropic wall region, the measurements provide reasonable support for the correction ratios which have been derived by assuming that turbulence is homogeneous in a plane parallel to the wall.

引用

页码：199 / 223

页数：25

共 41 条

[1] IMPROVEMENTS OF THE PERFORMANCE OF TRIPLE HOT-WIRE PROBES [J].