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Author(s):
S.Koide
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Title:
3-Dimensional Simulation of Dynamo Effect of Reversed Field Pinch
Date of publication:
Sep. 1990
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Key words:
reversed field pinch( RFP), non-linear MHD simulation, dynamo effect, MHD fluctuation, finite beta.
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Abstract:
A non-linear numerical simulation of the dynamo effect of a reversed field pinch (RFP) with finite beta is presented. It is shown that the m=-1, n=(9, 10, 11,...., 19) modes cause the dynamo effect and sustain the field reversed configuration. The role of the m=0 modes on the dynamo effect is carefully examined. Our simulation shows that the magnetic field fluctuation level scales as S^{-0.2} or S^{-0.3}in the range of 10^3 <S< I0^5 , while Nebel, Caramana and Schnack obtained the fluctuation level is independent of S for a pressureless RFP plasma.
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