Two-dimensional numerical simulations of shock waves in micro convergent-divergent nozzles

doi:10.1016/j.ijheatmasstransfer.2006.11.036

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	Two-dimensional numerical simulations of shock waves in micro convergent-divergent nozzles
	Xu, Jinliang; Zhao, Chuangxin
	2007-06-01
发表期刊	INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
ISSN	0017-9310
卷号	50 期号:11-12 页码:2434-2438
通讯作者	xujl@ms.giec.ac.cn
摘要	The steady two-dimensional Navier-Stokes equations with the slip wall boundary conditions were used to simulate the supersonic flow in micro convergent-divergent nozzles. It is observed that shock waves can take place inside or outside of the micronozzles under the earth environment. For the over-expanded flows, there is a boundary layer separation point, downstream of which a wave interface separates the viscous boundary layer with back air flow and the inviscid core flow. The oblique shock wave is followed by the bow shock and shock diamond. The viscous boundary layer thickness relative to the whole nozzle width on the exit plane is increased but attains the maximum value around of 0.5 and oscillates against this value with the continuous increasing of the nozzle upstream pressures. The viscous effect either changes the normal shock waves outside of the nozzle for the inviscid flow to the oblique shock waves inside the nozzle, or transfers the expansion jet flow without shock waves for the inviscid flow to the oblique shock waves outside of the nozzle. (c) 2007 Elsevier Ltd. All rights reserved.
文章类型	Article
其他摘要	The steady two-dimensional Navier-Stokes equations with the slip wall boundary conditions were used to simulate the supersonic flow in micro convergent-divergent nozzles. It is observed that shock waves can take place inside or outside of the micronozzles under the earth environment. For the over-expanded flows, there is a boundary layer separation point, downstream of which a wave interface separates the viscous boundary layer with back air flow and the inviscid core flow. The oblique shock wave is followed by the bow shock and shock diamond. The viscous boundary layer thickness relative to the whole nozzle width on the exit plane is increased but attains the maximum value around of 0.5 and oscillates against this value with the continuous increasing of the nozzle upstream pressures. The viscous effect either changes the normal shock waves outside of the nozzle for the inviscid flow to the oblique shock waves inside the nozzle, or transfers the expansion jet flow without shock waves for the inviscid flow to the oblique shock waves outside of the nozzle.
关键词	Shock Wave Micronozzle Viscous Effect Microthruster
WOS标题词	Science & Technology ; Physical Sciences ; Technology
DOI	10.1016/j.ijheatmasstransfer.2006.11.036
研究领域[WOS]	Thermodynamics ; Engineering ; Mechanics
URL	查看原文
收录类别	SCI
语种	英语
WOS类目	Thermodynamics ; Engineering, Mechanical ; Mechanics
WOS记录号	WOS:000246345800041
引用统计	被引频次：33[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.giec.ac.cn/handle/344007/3470
专题	中国科学院广州能源研究所
作者单位	Chinese Acad Sci, Guangzhou Inst Energy Convers, Micro Energy Syst Lab, Guangzhou 510640, Peoples R China
推荐引用方式 GB/T 7714	Xu, Jinliang,Zhao, Chuangxin. Two-dimensional numerical simulations of shock waves in micro convergent-divergent nozzles[J]. INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER,2007,50(11-12):2434-2438.
APA	Xu, Jinliang,&Zhao, Chuangxin.(2007).Two-dimensional numerical simulations of shock waves in micro convergent-divergent nozzles.INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER,50(11-12),2434-2438.
MLA	Xu, Jinliang,et al."Two-dimensional numerical simulations of shock waves in micro convergent-divergent nozzles".INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER 50.11-12(2007):2434-2438.

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