Aerodynamic optimization and evaluation for the three-dimensional afterbody/nozzle integrated configuration of hypersonic vehicles

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	Aerodynamic optimization and evaluation for the three-dimensional afterbody/nozzle integrated configuration of hypersonic vehicles
	Gao TY(高太元); Cui K(崔凯); Wang XP(王秀平); Hu SC(胡守超); Yang GW(杨国伟); Ren L; kcui@imech.ac.cn
发表期刊	Chinese Science Bulletin
	2012
卷号	57 期号:8 页码:849-857
摘要	The optimization of 2D expansion lines and key parameters of three-dimensional configurations was carried out under simulated conditions of Mach 6.5 and a flight altitude of 25 km for an integrated configuration of the afterbody/nozzle of a hypersonic vehicle. First, the cubic B-spline method was applied to parameterize the expansion lines of the upper expansion ramp. The optimization procedure was established based on computational fluid dynamics and the sequential quadratic programming method. The local mesh reconstruction technique was applied to improve computational efficiency. A three-dimensional integrated configuration afterbody/nozzle was designed based on the two-dimensional optimized expansion lines. The influence rules incorporated certain key design parameters affecting the lift and thrust performance of the configuration, such as the ratio of the lengths of the lower expansion ramp to the afterbody (l/L), the dip angle of the lower expansion ramp ω, and the ratio of exit height to the length of afterbody (H/L). Under these conditions, we found that the integrated configuration has optimal performance when l/L=1/6, H/L=0.35 and ω=10°. We also showed that the presence of a side-board promotes lift and thrust performance, and effectively prevents the leakage of high pressure gas.;
关键词	Hypersonic Afterbody/Nozzle Integrated Configuration Single Expanding Ramp Nozzle Optimization Computational Fluid Dynamics
学科领域	计算流体力学
URL	查看原文
收录类别	SCI
语种	英语
WOS记录号	WOS:000300771400004
课题组名称	LHD气动布局优化与计算方法
论文分区	二类
引用统计	被引频次：4[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/45666
专题	流固耦合系统力学重点实验室
通讯作者	kcui@imech.ac.cn
推荐引用方式 GB/T 7714	Gao TY,Cui K,Wang XP,et al. Aerodynamic optimization and evaluation for the three-dimensional afterbody/nozzle integrated configuration of hypersonic vehicles[J]. Chinese Science Bulletin,2012,57,8,:849-857.
APA	Gao TY.,Cui K.,Wang XP.,Hu SC.,Yang GW.,...&kcui@imech.ac.cn.(2012).Aerodynamic optimization and evaluation for the three-dimensional afterbody/nozzle integrated configuration of hypersonic vehicles.Chinese Science Bulletin,57(8),849-857.
MLA	Gao TY,et al."Aerodynamic optimization and evaluation for the three-dimensional afterbody/nozzle integrated configuration of hypersonic vehicles".Chinese Science Bulletin 57.8(2012):849-857.

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