A boundary value "reservoir problem" and boundary conditions for multi-moment multifluid simulations of sheaths

被引：2

作者：

Cagas, Petr ^{[1
]}

Hakim, Ammar H. ^{[2
]}

Srinivasan, Bhuvana ^{[1
]}

机构：

[1] Virginia Tech, Kevin T Crofton Dept Aerosp & Ocean Engn, Blacksburg, VA 24061 USA

[2] Princeton Plasma Phys Lab, Princeton, NJ 08543 USA

来源：

PHYSICS OF PLASMAS | 2021年 / 28卷 / 01期

关键词：

PLASMA;

D O I：

10.1063/5.0024510

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

Multifluid simulations of plasma sheaths are increasingly used to model a wide variety of problems in plasma physics ranging from global magnetospheric flows around celestial bodies to plasma-wall interactions in thrusters and fusion devices. For multifluid problems, accurate boundary conditions to model an absorbing wall that resolves a classical sheath remain an open research area. This work justifies the use of vacuum boundary conditions for absorbing walls to show comparable accuracy between a multifluid sheath and lower moments of a continuum-kinetic sheath.

引用

页数：6

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