{"title":"The influence of scattering gas states on aerothermodynamic properties of space fragments formed during Tianzhou-5 freighter reentry","authors":"Yong-Dong Liang, Xin-Yu Jiang, Zhi-Hui Li","doi":"10.1016/j.compfluid.2024.106305","DOIUrl":null,"url":null,"abstract":"<div><p>The work is devoted to researching the effects of reflected gas molecules’ states on aerodynamic properties and surface characteristic quantities distributions. Within the framework of GUKA, the Maxwellian type gas surface interaction model is implemented. After the validation of the GKUA in representative cases, the simple geometry model is initially introduced to study the variations of aerodynamic properties with different gas molecules states. Then the simulations around simplified Tianzhou-5 cargo spacecraft and its symbolic components are conducted at typical reentry trajectory points. The results are useful to predict the disintegration trajectories and evaluate the distributions of survival spacecraft objects falling down the ground.</p></div>","PeriodicalId":287,"journal":{"name":"Computers & Fluids","volume":null,"pages":null},"PeriodicalIF":2.5000,"publicationDate":"2024-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Computers & Fluids","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0045793024001373","RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS","Score":null,"Total":0}
引用次数: 0
Abstract
The work is devoted to researching the effects of reflected gas molecules’ states on aerodynamic properties and surface characteristic quantities distributions. Within the framework of GUKA, the Maxwellian type gas surface interaction model is implemented. After the validation of the GKUA in representative cases, the simple geometry model is initially introduced to study the variations of aerodynamic properties with different gas molecules states. Then the simulations around simplified Tianzhou-5 cargo spacecraft and its symbolic components are conducted at typical reentry trajectory points. The results are useful to predict the disintegration trajectories and evaluate the distributions of survival spacecraft objects falling down the ground.
期刊介绍：
Computers & Fluids is multidisciplinary. The term ''fluid'' is interpreted in the broadest sense. Hydro- and aerodynamics, high-speed and physical gas dynamics, turbulence and flow stability, multiphase flow, rheology, tribology and fluid-structure interaction are all of interest, provided that computer technique plays a significant role in the associated studies or design methodology.
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