Gyrokinetic simulations of magnetic reconnection

被引：44

作者：

Pueschel, M. J. ^{[1
,2
]}

Jenko, F. ^{[1
]}

Told, D. ^{[1
]}

Buechner, J. ^{[2
]}

机构：

[1] EURATOM, Max Planck Inst Plasmaphys, D-85748 Garching, Germany

[2] Max Planck Inst Sonnensyst Forsch, D-37191 Katlenburg Lindau, Germany

来源：

PHYSICS OF PLASMAS | 2011年 / 18卷 / 11期

关键词：

magnetic reconnection; plasma kinetic theory; plasma magnetohydrodynamics; plasma simulation; plasma transport processes; plasma turbulence; Vlasov equation; PLASMA; EQUATIONS; WAVES;

D O I：

10.1063/1.3656965

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：

Fast magnetic reconnection, believed to be a mechanism for rearranging the magnetic topology and creating energetic particles in many astrophysical and laboratory plasmas, is investigated with the nonlinear gyrokinetic code Gene. After some code-code benchmarking, extensive linear studies are presented, covering all relevant parameter dependencies of two-dimensional slab reconnection. The results are used to ascertain the validity of a fluid model and understand for which parameters it fails to describe the physics correctly. The nonlinear phase is studied for two scenarios: decaying and driven turbulence. In the former case, the initially injected energy is cascading towards the largest scales of the system, whereas a fully turbulent, quasi-stationary state develops if the system is driven through a Krook-type term in the gyrokinetic Vlasov equation. (C) 2011 American Institute of Physics. [doi:10.1063/1.3656965]

引用

页数：13

共 29 条

[11] Kinetic simulations of magnetized turbulence in astrophysical plasmas [J].

Howes, G. G. ;

Dorland, W. ;

Cowley, S. C. ;

Hammett, G. W. ;

Quataert, E. ;

Schekochihin, A. A. ;

Tatsuno, T. .

PHYSICAL REVIEW LETTERS, 2008, 100 (06)

[12] Nonlinear quasisteady state benchmark of global gyrokinetic codes [J].

Lapillonne, X. ;

McMillan, B. F. ;

Gorler, T. ;

Brunner, S. ;

Dannert, T. ;

Jenko, F. ;

Merz, F. ;

Villard, L. .

PHYSICS OF PLASMAS, 2010, 17 (11)

[13]

Matsumoto T., 1999, J PLASMA FUSION RES, V75, P1188

[14]

Merz F, 2009, THESIS U MUNSTER

[15] Free energy balance in gyrokinetic turbulence [J].

Navarro, A. Banon ;

Morel, P. ;

Albrecht-Marc, M. ;

Carati, D. ;

Merz, F. ;

Goerler, T. ;

Jenko, F. .

PHYSICS OF PLASMAS, 2011, 18 (09)

[16] AstroGK: Astrophysical gyrokinetics code [J].

Numata, Ryusuke ;

Howes, Gregory G. ;

Tatsuno, Tomoya ;

Barnes, Michael ;

Dorland, William .

JOURNAL OF COMPUTATIONAL PHYSICS, 2010, 229 (24) :9347-9372

[17] SWEETS MECHANISM FOR MERGING MAGNETIC FIELDS IN CONDUCTING FLUIDS [J].

PARKER, EN .

JOURNAL OF GEOPHYSICAL RESEARCH, 1957, 62 (04) :509-520

[18] Electron response to collisionless magnetic reconnection [J].

Perona, A. ;

Eriksson, L. -G. ;

Grasso, D. .

PHYSICS OF PLASMAS, 2010, 17 (04)

[19] Two-dimensional gyrokinetic turbulence [J].

Plunk, G. G. ;

Cowley, S. C. ;

Schekochihin, A. A. ;

Tatsuno, T. .

JOURNAL OF FLUID MECHANICS, 2010, 664 :407-435

[20] COLLISIONLESS M = 1 TEARING MODE [J].

PORCELLI, F .

PHYSICAL REVIEW LETTERS, 1991, 66 (04) :425-428

← 1 2 3 →