离子推力器空心阴极放电模型研究进展

摘要

Aimed at understanding the modeling methods about the discharge physical process of ion thruster hollow cathode,various modeling methods were reviewed,including fluid models,Particle-in-Cell(PIC)models,hybrid models and reduced-order models. The physical models’ characteristics,application areas and implementation outlines were ana-lyzed,which would serve the modeling methods selection of hollow cathode modeling and simulation with theoretical ba-sis. It would promote modeling solutions to the engineering problems that encountered in the development and experiment process.%为了解空心阴极放电物理过程的各种建模方法，调研了流体模型、PIC模型、混合模型和降级模型等多种建模方法的研究现状，分析了各种模型的特点、应用范围和实施要点，为促进建模仿真作为解决空心阴极研制、试验过程中遇到的具体工程问题的技术途径，选择有效、合理的建模方法提供依据和参考。