IMECH-IR  > 流固耦合系统力学重点实验室
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
Source PublicationAEROSPACE SCIENCE AND TECHNOLOGY
2020-12-01
Volume107Pages:106260
ISSN1270-9638
AbstractAdding 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.
KeywordAerodynamic thermal Opposing jets Parametric sensitivity analysis Uncertainty quantification Analysis of Variance Non-Intrusive Polynomial Chaos
DOI10.1016/j.ast.2020.106260
Indexed BySCI ; EI
Language英语
WOS IDWOS:000596566000006
WOS KeywordHEAT-FLUX REDUCTION ; MULTIOBJECTIVE DESIGN OPTIMIZATION ; OPPOSING JET ; COUNTERFLOWING JET ; NUMERICAL SIMULATIONS ; SENSITIVITY-ANALYSIS ; COMBINATIONAL SPIKE ; TRANSITION MODELS ; SUPERSONIC FLOWS ; NOSE CONE
Funding OrganizationNational Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [11721202]
Classification一类
Ranking4
ContributorYan, C
Citation statistics
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/85783
Collection流固耦合系统力学重点实验室
Affiliation1.{Zhang, Wei、Wang, Sheng、Yan, Chao} Beihang Univ, Natl Key Lab Computat Fluid Dynam, Beijing 100191, Peoples R China
2.{Wang, Qiang} China Acad Aerosp Aerodynam, Beijing 100074, Peoples R China
3.{Ju, Shengjun} Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China
Recommended Citation
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.
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