Actions for The role of plasma rotation on MHD instabilities in tokamaks [electronic resource].

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The role of plasma rotation on MHD instabilities in tokamaks [electronic resource].

Published
Washington, D.C. : United States. Dept. of Energy, 1993.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description
19 pages : digital, PDF file
Additional Creators
University of Illinois at Urbana-Champaign, United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information
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Summary
An improved analysis of the linear stage of the internal kink mode has been developed to include plasma rotation and finite aspect ratio effects. The linear instabiliy growth rates are increased by the plasma rotation. A pseudo-variational, bilinear formalism is used to discretize the linear instability equations; Fourier decomposition is used in the periodic coordinate, and a mixed-finite element procedure is adopted in the radial direction. The numerical studies with the resulting PEST-like code can be used to predict the complex plasma eigenfrequencies. The finite aspect ratio results are similar to the large aspect ratio results for flow instability. The complex instability frequencies found in the ``fishbone`` and TAE modes would be strong determined by the large plasma rotation velocities observed in present-day tokamak devices. These effects could be studied by using the computationally convenient bilinear form derived from the Frieman-Rotenberg equation.
Report Numbers
E 1.99:conf-930281--7
conf-930281--7
Subject(s)
Other Subject(s)
Note
Published through SciTech Connect.
06/01/1993.
"conf-930281--7"
"DE93013486"
6. transport task force workshop,Newport, RI (United States),21-25 Feb 1993.
Miley, G.H.; Varadarajan, V.
Funding Information
FG02-90ER54092
View MARC record | catkey: 14744765