EXTERNAL EXCITATION OF PLANAR JETS

被引:30
作者
ROCKWELL, DO [1 ]
机构
[1] LEHIGH UNIV, DEPT MECH ENGN & MECH, BETHLEHEM, PA 18015 USA
来源
JOURNAL OF APPLIED MECHANICS-TRANSACTIONS OF THE ASME | 1972年 / 39卷 / 04期
关键词
Reynolds number;
D O I
10.1115/1.3422886
中图分类号
O3 [力学];
学科分类号
08 ; 0801 ;
摘要
A planar jet was subjected to transverse periodic disturbances of appropriate dimension-less frequency suck that the vortex growth of the jet could be controlled for a wide range of jet Reynolds number (1860 to 10, 800). Changes in the apparent time mean characteristics of the jet in its initial formation region, due to the applied disturbances, are related to the behavior of vortices. The processes of vortex formation, growth, and coalescence in the initial formation region are portrayed. The alterations of these processes as a function of the dimensionless applied disturbance are classed into regimes identified with respect to the natural breakdown state of the jet. © 1972 by ASME.
引用
收藏
页码:883 / 890
页数:8
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