VELOCITY-MEASUREMENTS IN 3D TURBULENT FLOWS BY MEANS OF A ROTATING X-WIRE PROBE

被引：4

作者：

NHO, ELH

BEGUIER, C

机构：

[1] Lnstitut de Mecanique Statistique de la Turbulence, 13003 Marseille

来源：

MEASUREMENT SCIENCE AND TECHNOLOGY | 1995年 / 6卷 / 06期

关键词：

Velocity measurement;

D O I：

10.1088/0957-0233/6/6/021

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

One of the problems encountered in 3D turbulent flow measurement when using a four-wire probe is that the equation system is overdetermined, bringing many sources of errors. In the present paper we discuss a method of resolution of such a problem by means of a rotating X-wire probe, and we define a well determined 6 x 6 matrix system in order to obtain the solution with a good accuracy. Comparisons with the normal single-wire and the rotating X-wire probe measurements show the validity of our method in the detached flow behind a 45 degrees swept backward-facing step. The advantage of the rotating X-wire probe is its good space resolution, giving a better accuracy in the 3D velocity and in the double-correlation determination.

引用

页码：843 / 850

页数：8

共 12 条

[1]

BEGUIER C, 1971, C R ACAD SCI PARIS A, V271, P392

[2] MEASUREMENTS IN THE TURBULENT BOUNDARY-LAYER ON AN INFINITE SWEPT WING [J].