Forward-Running Detonation Drivers for High-Enthalpy Shock Tunnels

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	Forward-Running Detonation Drivers for High-Enthalpy Shock Tunnels
	Jiang ZL(姜宗林); Zhao W(赵伟); Wang C; Takayama K; Jiang ZL(姜宗林); Wang C(王超); Jiang ZL(姜宗林); Zhao W(赵伟)
刊名	AIAA Journal
	2002
卷号	40 期号:10 页码:2009-2016
ISSN号	0001-1452
通讯作者	Jiang, ZL (reprint author), Chinese Acad Sci, Inst Mech, Key Lab High Temp Gasdynam, Beijing 100080, Peoples R China.
英文摘要	To improve the quality of driving flows generated with detonation-driven shock tunnels operated in the forward-running mode, various detonation drivers with specially designed sections were examined. Four configurations of the specially designed section, three with different converging angles and one with a cavity ring, were simulated by solving the Euler equations implemented with a pseudo kinetic reaction model. From the first three cases, it is observed that the reflection of detonation fronts at the converging wall results in an upstream-traveling shock wave that can increase the flow pressure that has decreased due to expansion waves, which leads to improvement of the driving flow. The configuration with a cavity ring is found to be more promising because the upstream-traveling shock wave appears stronger and the detonation front is less overdriven. Although pressure fluctuations due to shock wave focusing and shock wave reflection are observable in these detonation-drivers, they attenuate very rapidly to an acceptable level as the detonation wave propagates downstream. Based on the numerical observations, a new detonation-driven shock tunnel with a cavity ring is designed and installed for experimental investigation. Experimental results confirm the conclusion drawn from numerical simulations. The generated driving flow in this shock tunnel could maintain uniformity for as long as 4 ms. Feasibility of the proposed detonation driver for high-enthalpy shock tunnels is well demonstrated.
学科主题	力学
类目[WOS]	Engineering, Aerospace
研究领域[WOS]	Engineering
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000178420200012
公开日期	2007-06-15 ; 2007-12-05 ; 2009-06-23
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/16367]
专题	力学研究所_力学所知识产出(1956-2008)
推荐引用方式 GB/T 7714	Jiang ZL,Zhao W,Wang C,et al. Forward-Running Detonation Drivers for High-Enthalpy Shock Tunnels[J]. AIAA Journal,2002,40(10):2009-2016.
APA	姜宗林.,赵伟.,Wang C.,Takayama K.,Jiang ZL.,...&Zhao W.(2002).Forward-Running Detonation Drivers for High-Enthalpy Shock Tunnels.AIAA Journal,40(10),2009-2016.
MLA	姜宗林,et al."Forward-Running Detonation Drivers for High-Enthalpy Shock Tunnels".AIAA Journal 40.10(2002):2009-2016.