NDLI: Characteristic and mechanism of pressure fluctuation caused by self-induced oscillation of supersonic impinging jet

Content Provider	Springer Nature Link
Author	Yasubu, Tsuyoshi Otobe, Yumiko Kashimura, Hideo
Copyright Year	2013
Abstract	When the underexpanded supersonic jet impinges on the obstacle, it is well known that the self-induced flow oscillation occurs. This oscillation depends on the pressure ratio in the flowfield, the position of an obstacle and is related with the noise problems of aeronautical and other industrial engineering. The characteristic and the mechanism of self-induced flow oscillation, have to be clarified to control various noise problems. But, it seems that the characteristics of the oscillated flowfield and the mechanism of an oscillation have to be more cleared to control the oscillation. This paper aims to clarify the effect of the pressure ratio and the obstacle position and the mechanism of self-induced flow oscillation by numerical analysis and experiment, when the underexpanded supersonic jet impinges on the cylindrical body. From the result of this study, it is clear that occurrence of the self-induced flow oscillation depends on the pressure balance in the flowfield.
Starting Page	123
Ending Page	127
Page Count	5
File Format	PDF
ISSN	10032169
Journal	Journal of Thermal Science
Volume Number	22
Issue Number	2
e-ISSN	1993033X
Language	English
Publisher	SP Science Press
Publisher Date	2013-03-28
Publisher Place	Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Supersonic Jet Mach Disk Barrel Shock Flow Oscillation Flow Visualization Numerical Analysis Classical Continuum Physics Engineering Fluid Dynamics Engineering Thermodynamics, Heat and Mass Transfer
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics

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