Numerical study on the aerothermodynamics of different heatshield configurations for Mars entry capsules
文献类型：期刊论文
| 作者 | Zhong K2; Yan C2; Chen SS2; Wang XY(王小永)1; Ju SJ2 |
| 刊名 | ACTA ASTRONAUTICA
 |
| 出版日期 | 2019-04-01 |
| 卷号 | 157页码:189-198 |
| 关键词 | Aeroheating Heatshield configuration Sphere-cone angle Mars Turbulent |
| ISSN号 | 0094-5765 |
| DOI | 10.1016/j.actaastro.2018.12.025 |
| 通讯作者 | Yan, Chao(yanchao@buaa.edu.cn) |
| 英文摘要 | 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. |
| 分类号 | 一类 |
| WOS关键词 | AERODYNAMICS ; PREDICTIONS ; SIMULATIONS ; TRANSITION ; LAMINAR ; MODELS |
| 资助项目 | National Natural Science Foundation of China[11721202] |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000464482400018 |
| 资助机构 | National Natural Science Foundation of China |
| 其他责任者 | Yan, Chao |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/78687]  |
| 专题 | 力学研究所_高温气体动力学国家重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China 2.Beihang Univ, Natl Key Lab Computat Fluid Dynam, Beijing 100191, Peoples R China; |
| 推荐引用方式 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. |
入库方式： OAI收割
来源：力学研究所
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