IMECH-IR  > 高温气体动力学国家重点实验室
Numerical study on the aerothermodynamics of different heatshield configurations for Mars entry capsules
Zhong K1; Yan C1; Chen SS1; Wang XY(王小永)2; Ju SJ1
Corresponding AuthorYan, Chao(yanchao@buaa.edu.cn)
Source PublicationACTA ASTRONAUTICA
2019-04-01
Volume157Pages:189-198
ISSN0094-5765
AbstractAeroheating predictions play an important role in the heatshield design of Mars entry capsule. This paper numerically investigates the effects of sphere-cone angle on the aerothermodynamic performances of heatshield configurations. Three-dimensional Navier-Stokes equations with chemical non-equilibrium models are employed to simulate the flowfield around the capsule. The laminar and turbulent heating rates of different heatshield configurations are compared and analyzed in detail. A novel correlation for turbulent heating augmentation in terms of laminar momentum thickness Reynolds number is developed to provide a guidance for engineering design and application. The proposed correlation can be more accurate and applicable due to its consideration of the sphere-cone angle effects. Finally, the laminar and turbulent maximum heat flux and total heat load along the flight trajectory are investigated for all the configurations. The numerical study is expected to illustrate the aeroheating characteristics of different heatshield configurations and provide an insight into the rational configuration design for future Mars entry capsules.
KeywordAeroheating Heatshield configuration Sphere-cone angle Mars Turbulent
DOI10.1016/j.actaastro.2018.12.025
Indexed BySCI ; EI
Language英语
WOS IDWOS:000464482400018
WOS KeywordAERODYNAMICS ; PREDICTIONS ; SIMULATIONS ; TRANSITION ; LAMINAR ; MODELS
WOS Research AreaEngineering
WOS SubjectEngineering, Aerospace
Funding ProjectNational Natural Science Foundation of China[11721202]
Funding OrganizationNational Natural Science Foundation of China
Classification一类
Ranking4
Citation statistics
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/78688
Collection高温气体动力学国家重点实验室
Affiliation1.Beihang Univ, Natl Key Lab Computat Fluid Dynam, Beijing 100191, Peoples R China;
2.Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Zhong K,Yan C,Chen SS,et al. Numerical study on the aerothermodynamics of different heatshield configurations for Mars entry capsules[J]. ACTA ASTRONAUTICA,2019,157:189-198.
APA Zhong K,Yan C,Chen SS,王小永,&Ju SJ.(2019).Numerical study on the aerothermodynamics of different heatshield configurations for Mars entry capsules.ACTA ASTRONAUTICA,157,189-198.
MLA Zhong K,et al."Numerical study on the aerothermodynamics of different heatshield configurations for Mars entry capsules".ACTA ASTRONAUTICA 157(2019):189-198.
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