| 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 Author | Yan, Chao([email protected]) |
| Source Publication | ACTA ASTRONAUTICA
 |
| 2019-04-01 | |
| Volume | 157Pages:189-198 |
| ISSN | 0094-5765 |
| Abstract | Aeroheating 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. |
| Keyword | Aeroheating Heatshield configuration Sphere-cone angle Mars Turbulent |
| DOI | 10.1016/j.actaastro.2018.12.025 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000464482400018 |
| WOS Keyword | AERODYNAMICS ; PREDICTIONS ; SIMULATIONS ; TRANSITION ; LAMINAR ; MODELS |
| WOS Research Area | Engineering |
| WOS Subject | Engineering, Aerospace |
| Funding Project | National Natural Science Foundation of China[11721202] |
| Funding Organization | National Natural Science Foundation of China |
| Classification | 一类 |
| Ranking | 4 |
| Contributor | Yan, Chao |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/78687 |
| Collection | 高温气体动力学国家重点实验室 |
| Affiliation | 1.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.Rp_Au:Yan, Chao |
| 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. |
| Files in This Item: | Download All | |||||
| File Name/Size | DocType | Version | Access | License | ||
| Jp2019134.pdf（8635KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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