Ion kinetic transport in TJ-II

被引：0

作者：

Velasco, J. L. ^{[1
]}

Castejon, F. ^{[1
]}

Fernandez, L. A. ^{[1
]}

Martin-Mayor, V. ^{[1
]}

Tarancon, A. ^{[1
]}

机构：

[1] BIFI Inst Biocomputac & Fis Sistemas Complejos, Zaragoza 50009, Spain

来源：

LARGE SCALE SIMULATIONS OF COMPLEX SYSTEMS, CONDENSED MATTER AND FUSION PLASMA | 2008年 / 1071卷

关键词：

plasma kinetic equations; non-linearity; Langevin; Stellarator;

D O I：

暂无

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：

The ion Drift Kinetic Equation (DKE) which describes the ion collisional transport is solved for the TJ-II device plasmas. This non-linear equation is computed by performing a mean field iterative calculation. In each step of the calculation, a Fokker-Planck equation is solved by means of the Langevin approach: one million particles are followed in a realistic TJ-II magnetic configuration, taking into account collisions and electric field. This allows to avoid the assumptions made in the usual neoclassical approach, namely considering radially narrow particle trajectories, diffusive transport, energy conservation and infinite parallel transport. As a consequence, global features of transport, not present in the customary neoclassical models, appear: non-diffusive transport and asymmetries on the magnetic surfaces.

引用

页码：109 / 123

页数：15

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