A Monte-Carlo method for coulomb collisions in hybrid plasma models

被引：35

作者：

Sherlock, M. ^{[1
]}

机构：

[1] Rutherford Appleton Lab, Chilton OX11 7SU, England

来源：

JOURNAL OF COMPUTATIONAL PHYSICS | 2008年 / 227卷 / 04期

关键词：

coulomb collision; Fokker-Planck; hybrid model; Monte-Carlo simulation;

D O I：

10.1016/j.jcp.2007.11.037

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

A procedure for implementing Coulomb collisions into hybrid (particle-fluid) plasma models is outlined which is rapid in execution due to the use of approximate expressions for the collision integrals and conserves energy and momentum exactly. Particles undergo dynamic friction and diffusion in velocity-space at rates consistent with the velocity-dependent Fokker-Planck diffusion coefficients and there are no assumptions made about the shape or size of the particle distribution function. The method is tested against the analytical theory of test particle slowing in a background plasma and the thermal equilibration of a Maxwellian distribution. (c) 2007 Elsevier Inc. All rights reserved.

引用

收藏

页码：2286 / 2292

页数：7

相关论文

共 18 条

[1] HYBRID SIMULATIONS OF QUASI-NEUTRAL PHENOMENA IN MAGNETIZED PLASMA [J].

BYERS, JA ;

COHEN, BI ;

CONDIT, WC ;

HANSON, JD .

JOURNAL OF COMPUTATIONAL PHYSICS, 1978, 27 (03) :363-396

[2] Langevin approach to plasma kinetics with Coulomb collisions [J].

Cadjan, MG ;

Ivanov, MF .

JOURNAL OF PLASMA PHYSICS, 1999, 61 :89-106

[3] Short-pulse high-intensity laser-generated fast electron transport into thick solid targets [J].

Davies, JR ;

Bell, AR ;

Haines, MG ;

Guerin, SM .

PHYSICAL REVIEW E, 1997, 56 (06) :7193-7203

[4] dHybrid:: A massively parallel code for hybrid simulations of space plasmas [J].

Gargate, L. ;

Bingham, R. ;

Fonseca, R. A. ;

Silva, L. O. .

COMPUTER PHYSICS COMMUNICATIONS, 2007, 176 (06) :419-425

[5] Exact numerical simulation of the Ornstein-Uhlenbeck process and its integral [J].

Gillespie, DT .

PHYSICAL REVIEW E, 1996, 54 (02) :2084-2091

[6] A GLOBAL METHOD OF SOLVING THE ELECTRON-FIELD EQUATIONS IN A ZERO-INERTIA-ELECTRON-HYBRID PLASMA SIMULATION CODE [J].

HEWETT, DW .

JOURNAL OF COMPUTATIONAL PHYSICS, 1980, 38 (03) :378-395

[7] A grid-based Coulomb collision model for PIC codes [J].

Jones, ME ;

Lemons, DS ;

Mason, RJ ;

Thomas, VA ;

Winske, D .

JOURNAL OF COMPUTATIONAL PHYSICS, 1996, 123 (01) :169-181

[8] A Coulomb collision model for PIC plasma simulation [J].

Larson, DJ .

JOURNAL OF COMPUTATIONAL PHYSICS, 2003, 188 (01) :123-138

[9] Physics of wire array Z-pinch implosions: experiments at Imperial College [J].

Lebedev, SV ;

Ampleford, DJ ;

Bland, SN ;

Bott, SC ;

Chittenden, JP ;

Goyer, J ;

Jennings, C ;

Haines, MG ;

Hall, GN ;

Hammer, DA ;

Palmer, JBA ;

Pikuz, SA ;

Shelkovenko, TA ;

Christoudias, T .

PLASMA PHYSICS AND CONTROLLED FUSION, 2005, 47 :A91-A108

[10] Langevin representation of Coulomb collisions in PIC simulations [J].

Manheimer, WM ;

Lampe, M ;

Joyce, G .

JOURNAL OF COMPUTATIONAL PHYSICS, 1997, 138 (02) :563-584