| Numerical study of high temperature non-equilibrium effects of double-wedge in hypervelocity flow | |
Dai, Chunliang1; Sun, Bo1; Zhuo, Changfei1; Zhou, Shengbing2; Zhou, Changsheng1; Yue LJ(岳连捷)3
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| Corresponding Author | Sun, Bo(hypersun@126.com) |
| Source Publication | AEROSPACE SCIENCE AND TECHNOLOGY (IF:2.829[JCR-2018],3.001[5-Year]) |
| 2022-05-01 | |
| Volume | 124Pages:17 |
| ISSN | 1270-9638 |
| Abstract | The high temperature non-equilibrium effects of shock wave interaction and shock wave/boundary layer interaction are important issues for hypervelocity flows. The models of thermochemical non-equilibrium gas (TCNEG), thermal non-equilibrium chemical frozen gas (TNCFG), chemical non-equilibrium gas (CNEG), and thermally perfect gas are used to simulate the double-wedge flows with a total enthalpy of 8 MJ/kg in this study. The unsteady two-temperature Naiver-Stokes equations in the laminar and turbulence flows are solved using the finite volume method. For laminar flow, the shock structures and the heat flux peak for TCNEG model at 170 mu s are agreed better with the experiment result compared to reference studies. There are different size vortices in the separation zones, which causes the distributions of the wall heat flux oscillate irregularly. The thermal non-equilibrium effects are the most intense near the attached shock and detached shock, and the degree of oxygen dissociation is the strongest in the subsonic zone near the slip-line. For turbulence flow, the shock structures for the four models are close to Edney's IV interaction. The separation shock position for the TNCFG model is the most upstream, and that for the CNEG model is quite different from the TCNEG model. The intensity of the reflected shocks on the back wedge and its nearby shock interaction largely determine the peak values of the heat flux for the four models. |
| Keyword | Hypervelocity double-wedge flow High temperature non-equilibrium effects Laminar and turbulence flow Shock wave interaction Shock wave boundary layer interaction |
| DOI | 10.1016/j.ast.2022.107526 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000793272200007 |
| WOS Research Area | Engineering |
| WOS Subject | Engineering, Aerospace |
| Funding Project | Postgraduate Research & Practice Innovation Program of Jiangsu Province[KYCX21_0338] ; China Postdoctoral Science Foundation[BX20200070] ; Opening Foundation of National State Key Laboratory of High Temperature Gas Dynamics[2021KF07] |
| Funding Organization | Postgraduate Research & Practice Innovation Program of Jiangsu Province ; China Postdoctoral Science Foundation ; Opening Foundation of National State Key Laboratory of High Temperature Gas Dynamics |
| Classification | 一类 |
| Ranking | 3+ |
| Contributor | Sun, Bo |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/89409 |
| Collection | 高温气体动力学国家重点实验室 |
| Affiliation | 1.Nanjing Univ Sci & Technol, Sch Mech Engn, Nanjing 210094, Peoples R China; 2.Chongqing Univ, Coll Aerosp Engn, Chongqing 400044, Peoples R China; 3.Chinese Acad Sci, State Key Lab High Temp Gas Dynam, Inst Mech, Beijing 100190, Peoples R China |
| Recommended Citation GB/T 7714 | Dai, Chunliang,Sun, Bo,Zhuo, Changfei,et al. Numerical study of high temperature non-equilibrium effects of double-wedge in hypervelocity flow[J]. AEROSPACE SCIENCE AND TECHNOLOGY,2022,124:17.Rp_Au:Sun, Bo |
| APA | Dai, Chunliang,Sun, Bo,Zhuo, Changfei,Zhou, Shengbing,Zhou, Changsheng,&岳连捷.(2022).Numerical study of high temperature non-equilibrium effects of double-wedge in hypervelocity flow.AEROSPACE SCIENCE AND TECHNOLOGY,124,17. |
| MLA | Dai, Chunliang,et al."Numerical study of high temperature non-equilibrium effects of double-wedge in hypervelocity flow".AEROSPACE SCIENCE AND TECHNOLOGY 124(2022):17. |
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