Interaction of a Supersonic Underexpanded Jet with a Flat Plate

被引：4

作者：

Amili, O. ^{[1
]}

Edgington-Mitchell, D. ^{[1
]}

Honnery, D. ^{[1
]}

Soria, J. ^{[1
,2
]}

机构：

[1] Monash Univ, Lab Turbulence Res Aerosp & Combust, Dept Mech & Aerosp Engn, Melbourne, Vic, Australia

[2] King Abdulaziz Univ, Dept Aeronaut Engn, Jeddah, Saudi Arabia

来源：

FLUID-STRUCTURE-SOUND INTERACTIONS AND CONTROL | 2016年

关键词：

D O I：

10.1007/978-3-662-48868-3_40

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

High-spatial resolution measurements of the velocity field of a supersonic jet impinging on a flat surface were conducted. To study the effect of the boundary condition, two nozzle outer geometries were investigated. The experimental results presented here are for a nozzle pressure ratio of NPR = 3.0 and a nozzle to plate spacing of Z/D = 3.5. The flow fields of the corresponding cases show that although the general features of the flow are similar, the ambient air entrainment into the shear layer is different. This change in entrainment influences the rest of the jet structure.

引用

页码：247 / 251

页数：5

共 8 条

[1]

KUMAR R., 2013, Physics of Fluids, V25

[2] Shock structures and instabilities formed in an underexpanded jet impinging on to cylindrical sections [J].