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research article
Calculation of global modes via ballooning formalisms
Ballooning theory is an asymptotic method for treating modes with short wavelength across the magnetic field lines but essentially no phase variation along the lines. The latter constraint leads to problems with maintaining the physically required poloidal and toroidal periodicity, which can be solved in various ways. In this paper we review the approach of Dewar and Glasser, which applies to general three-dimensional equilibria, and also review some recent applications of the formalism to a heliotron/torsatron test case.
Type
research article
Web of Science ID
WOS:A1997XU19800006
Authors
Dewar, R. L.
•
Cuthbert, P.
•
Lewandowski, J. L. V.
•
Gardner, H. J.
•
Singleton, D. B.
•
Persson, M.
•
Publication date
1997
Published in
Volume
31
Start page
S115
End page
S118
Note
Suppl. S
Peer reviewed
REVIEWED
Available on Infoscience
April 16, 2008
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