物理
羽流
离子
原子物理学
离子推进器
等离子体
电流(流体)
加速度
航天器
机械
推进
分布函数
计算物理学
法拉第笼
经典力学
磁场
气象学
热力学
量子力学
天文
作者
Peng Hu,Hui Liu,Yuanyuan Gao,Daren Yu
摘要
The multi-cusped field thruster is a kind of electrostatic thruster used for spacecraft propulsion. The thruster typically operates in both high and low current modes with a visual change in the thruster plume. A Faraday probe and a retarding potential analyzer were employed to discover the structures of the hollow plume in these two modes. The results show that in the small angle region (from 0° to 15°), the ion energy distribution function in the high current mode contains two peaks. While in the low current mode, only the low-energy peak is remained. Besides, during the mode transition between these two modes, a reverse variation trend of ion energy distribution occurs in the middle angle region (from 15° to 40°), which indicates that there are two kinds of acceleration routes for the ions generated in the discharge channel. It is suggested that the change of ion current in these two routes could lead to the transition of the hollow plume between different operating modes.
科研通智能强力驱动
Strongly Powered by AbleSci AI