典型文献
A fast convergence fourth-order Vlasov model for Hall thruster ionization oscillation analyses
文献摘要：
A 1D1V hybrid Vlasov-fluid model was developed for this study to elucidate discharge current oscillations of Hall thrusters(HTs).The Vlasov equation for ions velocity distribution function with ionization source term is solved using a constrained interpolation profile conservative semi-Lagrangian method.The fourth-order weighted essentially non-oscillatory(4th WENO)limiter is applied to the first derivative value to minimize numerical oscillation in the discharge oscillation analyses.The fourth-order accuracy is verified through a 1D scalar test case.Nonoscillatory and high-resolution features of the Vlasov model are confirmed by simulating the test cases of the Vlasov-Poisson system and by comparing the results with a particle-in-cell(PIC)method.A 1D1V HT simulation is performed through the hybrid Vlasov model.The ionization oscillation is analyzed.The oscillation amplitude and plasma density are compared with those obtained from a hybrid PIC method.The comparison indicates that the hybrid Vlasov-fluid model yields noiseless results and that the steady-state waveform is calculable in a short time period.
文献关键词：
中图分类号：
作者姓名：
Zhexu WANG;Rei KAWASHIMA;Kimiva KOMURASAKI
作者机构：
The University of Tokyo,7-3-1,Hongo,Bunkyo,Tokyo 113-8656,Japan
文献出处：
引用格式：
[1]Zhexu WANG;Rei KAWASHIMA;Kimiva KOMURASAKI-.A fast convergence fourth-order Vlasov model for Hall thruster ionization oscillation analyses)[J].等离子体科学和技术（英文版）,2022(02):117-126
A类：
thruster,1D1V,Nonoscillatory,calculable
B类：
fast,convergence,fourth,order,Vlasov,model,Hall,ionization,analyses,hybrid,fluid,was,developed,this,study,elucidate,discharge,current,oscillations,thrusters,HTs,equation,velocity,distribution,function,source,term,solved,using,constrained,interpolation,profile,conservative,semi,Lagrangian,method,weighted,essentially,4th,WENO,limiter,applied,first,derivative,value,minimize,numerical,accuracy,verified,through,scalar,test,high,resolution,features,confirmed,by,simulating,cases,Poisson,system,comparing,results,particle,cell,PIC,simulation,performed,analyzed,amplitude,plasma,density,compared,those,obtained,from,comparison,indicates,that,yields,noiseless,steady,state,waveform,short,period
AB值：
0.527099
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