Numerical study of the two-species Vlasov–Ampère system: Energy-conserving schemes and the current-driven ion-acoustic instability
作者: Yingda ChengAndrew J. ChristliebXinghui Zhong
作者单位: 1Department of Mathematics, Michigan State University, East Lansing, MI 48824, USA
2Department of Electrical and Computer Engineering, Michigan State University, East Lansing, MI 48824, USA
刊名: Journal of Computational Physics, 2015, Vol.288 , pp.66-85
来源数据库: Elsevier Journal
DOI: 10.1016/j.jcp.2015.02.020
关键词: Two-species Vlasov–Ampère systemEnergy conservationDiscontinuous Galerkin methodsCurrent-driven ion-acoustic wavesAnomalous resistivity
原始语种摘要: Abstract(#br)In this paper, we propose energy-conserving Eulerian solvers for the two-species Vlasov–Ampère (VA) system and apply the methods to simulate current-driven ion-acoustic instability. The two-species VA systems are of practical importance in applications, and they conserve many physical quantities including the particle number of each species and the total energy that is comprised of kinetic energy for both species and the electric energy.(#br)The main goal of this paper is to generalize our previous work for the single-species VA system [9] and Vlasov–Maxwell (VM) system [8] to the two-species case. The methodologies proposed involve careful design of temporal discretization and the use of the discontinuous Galerkin (DG) spatial discretizations. We show that the...
全文获取路径: Elsevier  (合作)
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影响因子:2.138 (2012)

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