Thrust and drag of a scramjet model with different combustor geometries

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	Thrust and drag of a scramjet model with different combustor geometries
	Chang XY(张新宇); Gu HB(顾洪斌); Chen LH(陈立红)
会议录名称	A Collection of Technical Papers - 13th AIAA/CIRA International Space Planes and Hypersonic Systems and Technologies Conference
	2005
会议名称	13th AIAA/CIRA International Space Planes and Hypersonic Systems and Technologies Conference
会议日期	May 16, 2005 - May 20, 2005
会议地点	Capua, Italy
摘要	Many efforts have been made to improve performance of scramjets (1-4). For this purpose cavities and struts were frequently used as the functions of mixing enhancement and flame stabilization. The present work focused on the effects of different strut and cavities on the thrust and drag of a side-wall compression scramjet model. This model consisting of a side-wall compression inlet, a combustor and a thrust nozzle and fueled by kerosene was tested in a propulsion tunnel that typically provides the testing flow with Mach number of 5.8, total temperature of 1800K, total pressure of 4.5MPa and mass flow rate of 4kg/s(5). A strut was used to increase the contraction ratio and to inject fuels, as well as a mixing enhancement device. Several wall cavities were also employed for flame-holder. The experimental results show that the cavities do not produce significant drag, but improve thrust performance well. It is found that the strut functions as an isolator and also helps the mixing enhancement, resulting in the improvement of the thrust performance. However the strut causes big drag to the scramjet model. Copyright © 2005 by the American Institute of Aeronautics and Astronautics Inc. All rights reserved.
关键词	Combustor Geometries Flame Stabilization Mixing Enhancement Scramjets
ISBN号	1563477297
收录类别	EI
语种	英语
文献类型	会议论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/60280
专题	力学所知识产出(1956-2008)
推荐引用方式 GB/T 7714	Chang XY,Gu HB,Chen LH. Thrust and drag of a scramjet model with different combustor geometries[C]A Collection of Technical Papers - 13th AIAA/CIRA International Space Planes and Hypersonic Systems and Technologies Conference,2005.

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