Nozzle plume erosion property on lunar dust in Chang’E-5 mission

被引：0
|
作者：
Zhang H. [1 ,2 ]
Li S. [1 ]
Wang Y. [2 ]
Li C. [2 ]
Zhang X. [3 ]
Wang W. [1 ]
机构：
[1] School of Mechano-Electronic Engineering, Xidian University, Xi’an
[2] Science and Technology on Vacuum Technology and Physics Laboratory, Lanzhou Institute of Physics, CAST, Lanzhou
[3] State Key Laboratory of Lunar and Planetary Sciences, Macau University of Science and Technology, Macau
来源：
Beijing Hangkong Hangtian Daxue Xuebao/Journal of Beijing University of Aeronautics and Astronautics | 2024年 / 50卷 / 04期
基金：
中国国家自然科学基金;
关键词：
Chang'E-5 mission; computational fluid dynamics simulation; Euler-Lagrange method; lunar dust; Plume ejection property;
D O I：
10.13700/j.bh.1001-5965.2022.0447
中图分类号：
学科分类号：
摘要：
During a lander landing, the plume-lunar surface interaction induces lunar dust ejection, which is the main reason for lunar dust hazards. The study adopts computational fluid dynamics(CFD) method to build a one-toone nozzle model and vacuum plume flow and diffusion model, through which the lunar dust erosion mass is investigated, and the lunar dust trajectory, ejection angle and velocity are obtained when nozzle altitude is from 0.5 to 2.0 m. The results show that the maximum mass erosion rate is 8.83 kg/m2·s and this value decreases with nozzle altitude increase, which also is consistent with landing photo results in the Chang’E-5 mission. For lunar dust kinetic properties, the maximum velocity for 1 μm and 70 μm particles are 2 520 m/s and 1 010 m/s respectively, the maximum height for 1 μm and 70 μm particles are 0.72 m and 0.36 m respectively. The dust ejected angle ranges from 1.44° to 2.27°. The ejected angle calculated in Chang’E-5 mission is similar to that in Apollo mission. © 2024 Beijing University of Aeronautics and Astronautics (BUAA). All rights reserved.
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页码：1251 / 1261
页数：10
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