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Title: Dynamo effect and current drive due to magnetic fluctuations in sheared magnetic field

Abstract

It is shown that when the mean electromotive force in a plasma is evaluated in terms of the two-point correlation of driven magnetic field fluctuations (as would be appropriate for problems related to current drive by waves), there is no {beta} effect; i.e., the terms associated with gradients of the mean field vanish. The relevance of this result to the problem of current drive is discussed.

Authors:
 [1]
  1. Institute for Fusion Studies, The University of Texas at Austin, Austin, Texas 78712 (USA)
Publication Date:
OSTI Identifier:
5459867
DOE Contract Number:  
FG05-80ET53088
Resource Type:
Journal Article
Journal Name:
Physics of Fluids B; (United States)
Additional Journal Information:
Journal Volume: 3:8; Journal ID: ISSN 0899-8221
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; HOT PLASMA; NON-INDUCTIVE CURRENT DRIVE; ELECTROMOTIVE FORCE; FLUCTUATIONS; FLUID FLOW; MAGNETIC FIELDS; SHEAR; VISCOSITY; WAVE PROPAGATION; PLASMA; VARIATIONS; 700108* - Fusion Energy- Plasma Research- Wave Phenomena

Citation Formats

Avinash, K. Dynamo effect and current drive due to magnetic fluctuations in sheared magnetic field. United States: N. p., 1991. Web. doi:10.1063/1.859628.
Avinash, K. Dynamo effect and current drive due to magnetic fluctuations in sheared magnetic field. United States. https://doi.org/10.1063/1.859628
Avinash, K. 1991. "Dynamo effect and current drive due to magnetic fluctuations in sheared magnetic field". United States. https://doi.org/10.1063/1.859628.
@article{osti_5459867,
title = {Dynamo effect and current drive due to magnetic fluctuations in sheared magnetic field},
author = {Avinash, K},
abstractNote = {It is shown that when the mean electromotive force in a plasma is evaluated in terms of the two-point correlation of driven magnetic field fluctuations (as would be appropriate for problems related to current drive by waves), there is no {beta} effect; i.e., the terms associated with gradients of the mean field vanish. The relevance of this result to the problem of current drive is discussed.},
doi = {10.1063/1.859628},
url = {https://www.osti.gov/biblio/5459867}, journal = {Physics of Fluids B; (United States)},
issn = {0899-8221},
number = ,
volume = 3:8,
place = {United States},
year = {Thu Aug 01 00:00:00 EDT 1991},
month = {Thu Aug 01 00:00:00 EDT 1991}
}