Reverse jet parameters study on aerodynamic thermal uncertainty of a blunt body

doi:10.1016/j.ast.2020.106260

CORC > 力学研究所 > 中国科学院力学研究所 > 流固耦合系统力学重点实验室(2012-)

	Reverse jet parameters study on aerodynamic thermal uncertainty of a blunt body
	Zhang W ; Wang S ; Wang Q ; Ju SJ(鞠胜军); Yan C
刊名	AEROSPACE SCIENCE AND TECHNOLOGY
	2020-12-01
卷号	107 页码:106260
关键词	Aerodynamic thermal Opposing jets Parametric sensitivity analysis Uncertainty quantification Analysis of Variance Non-Intrusive Polynomial Chaos
ISSN号	1270-9638
DOI	10.1016/j.ast.2020.106260
英文摘要	Adding head opposing jets is a common flow control approach to reduce the aerodynamic heating of hypersonic vehicles with blunt-shape head. However, interests of present studies are mostly focused on surface heating reduction originate from opposing jets only on single-and-determinate free incoming conditions, rather than that under existence of freestream perturbations, to the best of knowledge. In this work, two-layers research structure is formed to investigate the jet design parameters on surface thermal uncertainty with occurrence of free incoming perturbations. In the inner layer, the Polynomial Chaos method is applied for quantifying the surface thermal uncertainty, including the mean value and the standard deviation, under free incoming perturbations. In the outer layer, the Variance Analysis method is employed to describe the jet geometry and flow parameters on surface thermal uncertainty. As a consequence, the parameters impact on the mean surface heating under perturbations are found similar to that in baseline freestream condition. Moreover, only jet entry diameter and total-pressure ratio of jetto-freestream are important when it comes to the standard deviation of surface heating. This research is anticipated to be available of robust thermal-reduction optimization on hypersonic vehicles with blunt shape head in a wide range of free incoming conditions for reference. (c) 2020 Elsevier Masson SAS. All rights reserved.
分类号	一类
WOS关键词	HEAT-FLUX REDUCTION ; MULTIOBJECTIVE DESIGN OPTIMIZATION ; OPPOSING JET ; COUNTERFLOWING JET ; NUMERICAL SIMULATIONS ; SENSITIVITY-ANALYSIS ; COMBINATIONAL SPIKE ; TRANSITION MODELS ; SUPERSONIC FLOWS ; NOSE CONE
语种	英语
WOS记录号	WOS:000596566000006
资助机构	National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [11721202]
其他责任者	Yan, C
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/85783]
专题	力学研究所_流固耦合系统力学重点实验室(2012-)
作者单位	1.{Ju, Shengjun} Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China 2.{Wang, Qiang} China Acad Aerosp Aerodynam, Beijing 100074, Peoples R China 3.{Zhang, Wei、Wang, Sheng、Yan, Chao} Beihang Univ, Natl Key Lab Computat Fluid Dynam, Beijing 100191, Peoples R China
推荐引用方式 GB/T 7714	Zhang W,Wang S,Wang Q,et al. Reverse jet parameters study on aerodynamic thermal uncertainty of a blunt body[J]. AEROSPACE SCIENCE AND TECHNOLOGY,2020,107:106260.
APA	Zhang W,Wang S,Wang Q,鞠胜军,&Yan C.(2020).Reverse jet parameters study on aerodynamic thermal uncertainty of a blunt body.AEROSPACE SCIENCE AND TECHNOLOGY,107,106260.
MLA	Zhang W,et al."Reverse jet parameters study on aerodynamic thermal uncertainty of a blunt body".AEROSPACE SCIENCE AND TECHNOLOGY 107(2020):106260.