10 papers
Simulation Study of Coupling Effects Between a Hall Thruster and a Power Processing Unit
Zirui Fan, Yinjian Zhao, Jingjing Li +4
The complex and nonlinear load characteristics of Hall thrusters remain a key challenge in the design of propulsion power-supply output stages. In existing power-supply simu-lation…
Semi-local Floquet theory for active azimuthal magnetic modulation of Hall-thruster high-frequency instabilities
Yinjian Zhao, Changzheng Hu
A semi-local Floquet extension of a uniform-field kinetic electron drift instability (EDI) dispersion relation is developed to assess prescribed azimuthal magnetic-field modulation…
Test Particle Study of EDI Driven Electron Transport in a Hall Thruster Using PIC Derived Electric Fields
Zhongping Zhao, Kunpeng Zhong, Yinjian Zhao
Electron transport in a Hall thruster is investigated at the test particle level using prescribed electric fields derived from the electron drift instability (EDI) resolving three…
Free-Molecular Face-Flux Preprocessing for Reduced Neutral-Continuity Modeling in Hall Thrusters: Particle-Based Reference and Deterministic SN-DFEM Realization
Yingjie Chen, Xi Chen, Yinjian Zhao
Neutral gas transport directly affects the ionization source, propellant utilization, and low-frequency discharge oscillations in Hall thrusters. High-fidelity particle-based neutr…
Conservative Charge and Current Deposition on Nonuniform 3D Cylindrical PIC Meshes with Residual Self-Field Diagnostics
Zhe Liu, Zhijun Zhou, Yinjian Zhao
Particle-in-cell simulations on nonuniform cylindrical meshes require deposition schemes that respect cylindrical metrics while controlling numerical self-fields. This work develop…
Full-gap kinetic limitation of thermionic-electron transport for electron transpiration cooling
Wushun Zhang, Weixing Zhou, Yinjian Zhao
Electron transpiration cooling (ETC) can reduce aerothermal loads on sharp hypersonic leading edges, but its performance is governed by whether thermionically emitted electrons esc…