Maxwell模型中keV能量的Xe粒子对铜表面的适应系数

商圣飞; 姜利祥; 向树红

doi:10.13224/j.cnki.jasp.2020.10.022

Maxwell模型中keV能量的Xe粒子对铜表面的适应系数

doi: 10.13224/j.cnki.jasp.2020.10.022

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出版历程
- 收稿日期: 2020-03-19
- 刊出日期: 2020-10-28

Adaptation coefficient of keV energy Xe particles to copper surface in Maxwell model

1.
Beijing Institute of Spacecraft Environment Engineering,China Academy of Space Technology,Beijing 100094,China
2.
National Key Laboratory of Science and Technology on Reliability and Environmental Engineering,Beijing Institute of Spacecraft Environment Engineering，Beijing 100094,China

摘要

摘要: 使用热流传感器对氙离子推力器轴向距离为500、700 mm和900 mm,径向角度为0°~15°(推力器出口平面中心为圆心,推力器出口轴线为0°)范围内羽流热流密度的分布进行了实验研究,获得了热流随角度和半径变化的实验数据。采用PIC-DSMC (particle in cell direct simulation of Monte Carlo)算法在不同适应系数下对实验条件进行仿真分析,对比仿真结果和实验结果得到适应系数。结果表明:keV能量的Xe粒子对热流传感器表面(铜)的适应系数接近1。
- 电推进羽流 /
- 热流分布 /
- 适应系数 /
- 粒子与壁面相互作用 /
- Maxwell模型
Abstract: Experimental study was carried out on the ion thruster plume thermal effect within the scope of thruster exit radius of 500, 700 mm and 900 mm, the angle of 0°-15° (assuming the thruster exit plane as the center of the circle, thruster exit axis as 0°) with the help of the heat flux sensor. PIC-DSMC (particle in cell direct simulation of Monte Carlo) algorithm was used to simulate the experimental conditions under different adaptation coefficients. The results showed that the adaptation coefficient of keV energy Xe particles to the surface (copper) of the heat flow sensor was close to 1.
- electric propulsion plume /
- heat flux distribution /
- adaptation coefficient /
- particle wall interaction /
- Maxwell model

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参考文献(24)

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