Effect of nonlinear electron Landau damping in collisionless drift-wave turbulence

被引：11

作者：

Jenko, F ^{[1
]}

Scott, BD ^{[1
]}

机构：

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

来源：

PHYSICAL REVIEW LETTERS | 1998年 / 80卷 / 22期

关键词：

D O I：

10.1103/PhysRevLett.80.4883

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Collisionless drift-wave turbulence is studied with numerical simulations in a three-dimensional sheared slab geometry. Nonlinear electron Landau damping associated with parallel trapping is found to substantially reduce the anomalous particle transport for low magnetic shear ((S) over cap < 1), whereas it plays a very weak role for higher shear ((s) over cap > 1). This result has implications for the construction of transcollisional Landau-fluid models for passing electrons in the edge (r/a > 0.8) of a tokamak.

引用

页码：4883 / 4886

页数：4

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