TURBULENCE PROPERTIES OF AN AXISYMMETRICAL SEPARATION-AND-REATTACHING FLOW

被引：17

作者：

KIYA, M

MOCHIZUKI, O

TAMURA, H

NOZAWA, T

ISHIKAWA, R

KUSHIOKA, K

机构：

[1] Hokkaido University, Department of Mechanical Engineering, Sapporo

来源：

AIAA JOURNAL | 1991年 / 29卷 / 06期

关键词：

D O I：

10.2514/3.10682

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

摘要：

The time-mean and root-mean-squared values, the integral time scale, the phase velocity, and the longitudinal and circumferential length scales of the velocity and the surface-pressure fluctuations are presented for a separation-and-reattaching flow formed by the boundary-layer separation at the leading edge of a blunt circular cylinder at Reynolds numbers of the order of 10(5). The cross correlations of the surface-pressure fluctuations suggested that the flow in the reattachment region of the separated shear layer has a cellular structure. A phase-averaging measurement of the reverse-flow intermittency revealed an aspect of the spatial extent of the flow unsteadiness in the reattachment region.

引用

页码：936 / 941

页数：6

共 20 条

[1] THE STRUCTURE OF A TURBULENT SHEAR-LAYER BOUNDING A SEPARATION REGION [J].