Moment approach to the bootstrap current in nonaxisymmetric toroidal plasmas using δf Monte Carlo methods

被引:6
|
作者
Matsuyama, A. [1 ]
Isaev, M. Yu. [2 ]
Watanabe, K. Y. [3 ]
Hanatani, K. [4 ]
Suzuki, Y. [3 ]
Nakajima, N. [3 ]
Cooper, W. A. [5 ]
Tran, T. M. [5 ]
机构
[1] Kyoto Univ, Grad Sch Energy Sci, Kyoto 6110011, Japan
[2] RRC Kurchatov Inst, Nucl Fus Inst, Moscow 123182, Russia
[3] Natl Inst Nat Sci, Natl Inst Fus Sci, Toki, Gifu 5095292, Japan
[4] Kyoto Univ, Inst Adv Energy, Kyoto 6110011, Japan
[5] Ecole Polytech Fed Lausanne, Ctr Rech Phys Plasmas, Assoc Euratom Suisse, CH-1015 Lausanne, Switzerland
基金
瑞士国家科学基金会;
关键词
method of moments; Monte Carlo methods; plasma collision processes; plasma kinetic theory; plasma simulation; plasma toroidal confinement; plasma transport processes; stellarators; LARGE HELICAL DEVICE; NEOCLASSICAL TRANSPORT; COEFFICIENTS; SYSTEMS; COLLISIONALITY; CONFIGURATIONS; STELLARATORS; CONFINEMENT; IMPURITIES; SIMULATION;
D O I
10.1063/1.3121223
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
To evaluate the bootstrap current in nonaxisymmetric toroidal plasmas quantitatively, a delta f Monte Carlo method is incorporated into the moment approach. From the drift-kinetic equation with the pitch-angle scattering collision operator, the bootstrap current and neoclassical conductivity coefficients are calculated. The neoclassical viscosity is evaluated from these two monoenergetic transport coefficients. Numerical results obtained by the delta f Monte Carlo method for a model heliotron are in reasonable agreement with asymptotic formulae and with the results obtained by the variational principle.
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页数:9
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