Critical transition for the edge shear layer formation: Comparison of model and experiment

被引：15

作者：

Carreras, B. A.

Garcia, L.

Pedrosa, M. A.

Hidalgo, C.

机构：

[1] Oak Ridge Natl Lab, Oak Ridge, TN 37830 USA

[2] Univ Carlos III Madrid, Madrid 28911, Spain

[3] EURATOM, CIEMAT, Lab Nacl Fus, Madrid 28040, Spain

来源：

PHYSICS OF PLASMAS | 2006年 / 13卷 / 12期

关键词：

FLOW; TURBULENCE; CONFINEMENT; TRANSPORT;

D O I：

10.1063/1.2405344

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 experimental results for the emergence of the plasma edge shear flow layer in TJ-II [C. Alehaldre Fusion Technol. 17, 131 (1990)] can be explained using a simple model for a second-order transition based on the sheared flow amplification by Reynolds stress and turbulence suppression by shearing. In the dynamics of the model, the resistive interchange instability is used. This model gives power dependence on density gradients before and after the transition, consistent with experiment. (c) 2006 American Institute of Physics.

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页数：6

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