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(THP2/09) Nonlinear Tearing Mode in Turbulent Plasmas

M. Yagi¹⁾, S.-I. Itoh¹⁾, K. Itoh²⁾, A. Fukuyama^3)
 
1) Research Institute for Applied Mechanics, Kyushu University, Kasuga, Japan
²⁾ National Institute for Fusion Science, Toki, Japan
³⁾ Department of Nuclear Engineering, Kyoto University, Kyoto, Japan

Abstract.  A kind of large eddy simulation model is proposed to incorporate the effect of microturbulence into MHD. This model is applied to the analysis of magnetic island dynamics in the presence of strong pressure gradient. It is found that the growth of magnetic island is accelerated by the anomalous resistivity and the propagation frequency of magnetic island is dictated by turbulent viscosity.

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