Resistive pressure‐gradient‐driven turbulence with self‐consistent flow profile evolution
作者:
B. A. Carreras,
V. E. Lynch,
L. Garcia,
P. H. Diamond,
期刊:
Physics of Fluids B: Plasma Physics
(AIP Available online 1993)
卷期:
Volume 5,
issue 5
页码: 1491-1505
ISSN:0899-8221
年代: 1993
DOI:10.1063/1.860889
出版商: AIP
数据来源: AIP
摘要:
Resistive pressure‐gradient‐driven turbulence causes a modification of the average poloidal flow profile through Reynolds stress. The poloidal flow profile modification can be induced through a diamagnetic term and/or ‘‘seed’’ flow. This leads to several possible results for the steady‐state poloidal flow profile. If this profile is such thatV‘&thgr;≠0 at the singular surface, there is a reduction in linear growth rate and suppression of the fluctuation. WhenV‘&thgr;= 0 andV’&thgr;≠0, there is linear stabilization but the fluctuation suppression is weak.
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