大连理工大学  登录  English 
鹿畅
点赞:

助理研究员

性别: 男

学位: 博士

所在单位: 力学与航空航天学院

学科: 航空宇航推进理论与工程

办公地点: 大连理工大学综合实验一号楼412A

电子邮箱: ChangLu@dlut.edu.cn

手机版

访问量:

开通时间: ..

最后更新时间: ..

当前位置: 中文主页 >> 科学研究 >> 论文成果
碳纳米管阵列推力器放电特性的数值模拟研究

点击次数:

发表时间: 2022-10-06

发表刊物: Yuhang Xuebao/Journal of Astronautics

所属单位: 运载工程与力学学部

卷号: 42

期号: 5

页面范围: 634-641

ISSN号: 1000-1328

摘要: Based on the Direct Simulation Monte Carlo (DSMC) method, Immersed Finite Element (IFE) method, Particle-in-cell Monte Carlo Collision (PIC-MCC) method and Ammosov-Delone-Krainov(ADK) tunneling ionization model, a three-dimensional simulation model for the carbon nanotube (CNT) array thruster is established. The validity of the simulation model is verified by comparison with experimental data in literature. The results show that the simulation model is in agreement with the experimental results. Then the discharge characteristics of the carbon nanotube array thruster are studied, and the influence of collisions is also analyzed. The results show that CNT can greatly enhance the local electric field, and the field enhancement factor in steady state is about 1308; the collision with atoms makes ions more concentrated near the CNT tip, thus reducing the local electric field and its field enhancement ability. © 2021, Editorial Dept. of JA. All right reserved.

备注: 新增回溯数据

辽ICP备05001357号 地址:中国·辽宁省大连市甘井子区凌工路2号 邮编:116024
版权所有:大连理工大学