Projected profile similarity in gyrokinetic simulations of Bohm and gyro-Bohm scaled DIII-D L and H modes

被引：24

作者：

Waltz, R. E. ^{[1
]}

Candy, J. ^{[1
]}

Petty, C. C. ^{[1
]}

机构：

[1] Gen Atom Co, San Diego, CA 92186 USA

来源：

PHYSICS OF PLASMAS | 2006年 / 13卷 / 07期

关键词：

D O I：

10.1063/1.2218811

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：

Global gyrokinetic simulations of DIII-D [M. A. Mahdavi and J. L. Luxon, in "DIII-D Tokamak Special Issue," Fusion Sci. Technol. 48, 2 (2005)] L- and H-mode dimensionally similar discharge pairs are treated in detail. The simulations confirm the Bohm scaling of the well-matched L-mode pair. The paradoxical but experimentally apparent gyro-Bohm scaling of the H-mode pair at larger relative gyroradius (rho-star) and lower transport levels is due to poor profile similarity. Simulations of projected experimental plasma profiles with perfect similarity show both the L- and H-mode pairs to have Bohm scaling. A rho(*) stabilization rule for predicting the breakdown of gyro-Bohm scaling from simulations of a single discharge is presented. (c) 2006 American Institute of Physics.

引用

页数：10

共 22 条

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