Nonlinear evolution of drift‐tearing modes
作者:
Bruce D. Scott,
A. B. Hassam,
J. F. Drake,
期刊:
Physics of Fluids(00319171)
(AIP Available online 1985)
卷期:
Volume 28,
issue 1
页码: 275-277
ISSN:0031-9171
年代: 1985
DOI:10.1063/1.865197
出版商: AIP
数据来源: AIP
摘要:
It is shown that diamagnetic propagation of drift‐tearing modes ceases at small island widths as the local density profile is flattened by sound waves. The critical width for density flattening is small compared to island widths typically inferred from observed magnetic fluctuations ofm=2 in tokamak discharges. The rotation of these fluctuations must therefore result from radial electric fields.
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