| 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
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| Source Publication | AEROSPACE SCIENCE AND TECHNOLOGY
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| 2020-12-01 | |
| Volume | 107Pages:106260 |
| ISSN | 1270-9638 |
| Abstract | 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. |
| Keyword | Aerodynamic thermal Opposing jets Parametric sensitivity analysis Uncertainty quantification Analysis of Variance Non-Intrusive Polynomial Chaos |
| DOI | 10.1016/j.ast.2020.106260 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000596566000006 |
| WOS Keyword | HEAT-FLUX REDUCTION ; MULTIOBJECTIVE DESIGN OPTIMIZATION ; OPPOSING JET ; COUNTERFLOWING JET ; NUMERICAL SIMULATIONS ; SENSITIVITY-ANALYSIS ; COMBINATIONAL SPIKE ; TRANSITION MODELS ; SUPERSONIC FLOWS ; NOSE CONE |
| Funding Organization | National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [11721202] |
| Classification | 一类 |
| Ranking | 4 |
| Contributor | Yan, C |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/85783 |
| Collection | 流固耦合系统力学重点实验室 |
| Affiliation | 1.{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.Rp_Au:Yan, C |
| 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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| Jp2020512.pdf（2859KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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