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Numerical simulation of the plasma current quench following a disruptive energy loss [electronic resource].

Published:
Oak Ridge, Tenn. : Oak Ridge National Laboratory, 1983.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description:
Pages: 39 : digital, PDF file
Additional Creators:
Oak Ridge National Laboratory and United States. Department of Energy. Office of Scientific and Technical Information
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Summary:
The plasma electromagnetic interaction with poloidal field coils and nearby passive conductor loops during the current quench following a disruptive loss of plasma energy is simulated. By solving a differential/algebraic system consisting of a set of circuit equations (including the plasma circuit) coupled to a plasma energy balance equation and an equilibrium condition, the electromagnetic consequences of an abrupt thermal quench are observed. Limiters on the small and large major radium sides of the plasma are assumed to define the plasma cross section. The presence of good conductors near the plasma and a small initial distance (i.e., 5 to 10% of the plasma minor radius) between the plasma edge and an inboard limiter are shown to lead to long current decay times. For a plasma with an initial major radius R/sub o/ = 4.3 m, aspect ratio A = 3.6, and current I/sub P/ = 4.0 MA, introducing nearby passive conductors lengthens the current decay from milliseconds to hundreds of milliseconds.
Report Numbers:
E 1.99:ornl/fedc-83/2
ornl/fedc-83/2
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Note:
Published through SciTech Connect.
11/01/1983.
"ornl/fedc-83/2"
"DE84003151"
Miller, J.B.; Holmes, J.A.; Rothe, K.E.; Strickler, D.J.; Peng, Y.K.M.
Funding Information:
W-7405-ENG-26
View MARC record | catkey: 14748855