IMPINGEMENT OF A SUPERSONIC UNDEREXPANDED JET ONTO OBSTACLES WITH DIFFERENT PERMEABILITIES

被引：6
|
作者：
Zapryagaev, V. I. [1 ]
Solotchin, A. V. [1 ]
Kavun, I. N. [1 ]
Yarovsky, D. A. [1 ]
机构：
[1] Russian Acad Sci, Siberian Branch, Khristianovich Inst Theoret & Appl Mech, Novosibirsk 630090, Russia
来源：
JOURNAL OF APPLIED MECHANICS AND TECHNICAL PHYSICS | 2011年 / 52卷 / 05期
关键词：
supersonic underexpanded jet; porous obstacle; permeability; level of acoustic disturbances;
D O I：
10.1134/S0021894411050063
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
Results of an experimental study of the flow structure and characteristics of flow oscillations induced by impinging of a supersonic underexpanded jet onto obstacles made of permeable and impermeable materials are presented. Spectral characteristics of the acoustic field in the regime of unsteady interaction between the jet and the obstacle are determined. The influence of permeability of porous obstacles on these characteristics is identified.
引用
收藏
页码：727 / 733
页数：7
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