NOTE ON SECONDARY FLOWS IN OSCILLATING-GRID, MIXING-BOX EXPERIMENTS

被引：55

作者：

FERNANDO, HJS

DESILVA, IPD

机构：

[1] Department of Mechanical and Aerospace Engineering, Arizona State University, Tempe

来源：

PHYSICS OF FLUIDS A-FLUID DYNAMICS | 1993年 / 5卷 / 07期

关键词：

D O I：

10.1063/1.858808

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

Oscillating-grid induced turbulence in confined geometries (tanks) is commonly used in the study of turbulence with zero-mean shear. It is demonstrated that the mean secondary circulation generated during such experiments can be reduced by selecting conditions that lessen the Reynolds-stress gradients within the fluid. A simple power law for the spatial decay of turbulent velocity fluctuations is realized only in the absence of such mean circulation.

引用

页码：1849 / 1851

页数：3

共 12 条

[1] A COMPARISON OF VELOCITY-MEASUREMENTS USING A LASER ANEMOMETER AND A HOT-FILM PROBE, WITH APPLICATION TO GRID-STIRRING ENTRAINMENT EXPERIMENTS [J].