COHERENT STRUCTURES IN A 3-DIMENSIONAL WALL JET

被引：25

作者：

MATSUDA, H ^{[1
]}

LIDA, S ^{[1
]}

HAYAKAWA, M ^{[1
]}

机构：

[1] HOKKAIDO UNIV,DEPT MECH ENGN 2,SAPPORO,HOKKAIDO 060,JAPAN

来源：

JOURNAL OF FLUIDS ENGINEERING-TRANSACTIONS OF THE ASME | 1990年 / 112卷 / 04期

关键词：

D O I：

10.1115/1.2909428

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The formation mechanism of streamwise vortices in the near field of the three-dimensional wall jet discharging from a circular nozzle along a flat plate is studied experimentally using a conditional sampling technique. Ensemble-averages of the lateral velocity component indicate the presence of large-scale horseshoe-like structures, whose legs are inclined and stretched to form the streamwise vortices in the mixing region of the jet. Based on the present result, a coherent structure model for the near field of the wall is proposed.

引用

页码：462 / 467

页数：6

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