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Numerical simulation of heat transfer by forced convection on mars rover

  • Beihang University

科研成果: 书/报告/会议事项章节会议稿件同行评审

摘要

Numerical simulation have been undertaken to investigate the forced convention heat transfer of carbon dioxide flow over the Mars rover under the Martian conditions. The study is carried out based on a simplified Mars rover model which is a cuboid with longer and wider top surface and it is performed under the conditions of temperature 160 K and 290 K, Reynolds numbers of 6.64×103 to 7.01×104 and the pressure of 1000 Pa. Different directions of inflow are investigated in order to better reveal the complicated flow fields around the Mars rover. Results show that the heat transfer rate mainly depends on the inflow direction and there is a special angle that the heat transfer rate can reach its maximum. Another point of the conclusion is that the heat transfer coefficient is influenced by the separation and reattachment of turbulent flow. Additionally, the evolution of vortices cause the heat transfer coefficient increasing slightly. Based on the numerical simulation data, a correlation of the force convection heat transfer of carbon dioxide flowing over the Mars rover is developed. Compared with the empirical correlation from literature, the present correlation is more applicable under the Martian conditions.

源语言英语
主期刊名2017 8th International Conference on Mechanical and Aerospace Engineering, ICMAE 2017
出版商Institute of Electrical and Electronics Engineers Inc.
281-285
页数5
ISBN(电子版)9781538633052
DOI
出版状态已出版 - 14 9月 2017
活动8th International Conference on Mechanical and Aerospace Engineering, ICMAE 2017 - Prague, 捷克共和国
期限: 22 7月 201725 7月 2017

出版系列

姓名2017 8th International Conference on Mechanical and Aerospace Engineering, ICMAE 2017

会议

会议8th International Conference on Mechanical and Aerospace Engineering, ICMAE 2017
国家/地区捷克共和国
Prague
时期22/07/1725/07/17

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