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Simulation of resistive drift wave turbulence in a linear device

Published online by Cambridge University Press:  20 December 2006

NAOHIRO KASUYA ,
MASATOSHI YAGI  and
KIMITAKA ITOH
NAOHIRO KASUYA
Affiliation:
National Institute for Fusion Science, Oroshi-cho 322-6, Toki 509-5292, Japan
MASATOSHI YAGI
Affiliation:
Research Institute for Applied Mechanics, Kyushu University, Kasuga-kouen 6-1, Kasuga 816-8580, Japan
KIMITAKA ITOH
Affiliation:
National Institute for Fusion Science, Oroshi-cho 322-6, Toki 509-5292, Japan
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Abstract

The three-field reduced magnetohydrodynamic (MHD) model is extended to describe the resistive drift wave turbulence in a linear device. Using this model, the linear eigenmode analysis has been performed to identify the unstable modes, which give an estimation of a necessary condition for the turbulence excitation in the Larger Mirror Device designed by Kyushu University. The parameter scan predicts the experimental condition for the excitation of the resistive drift wave turbulence. It is found that ion–neutral collision strongly stabilizes the resistive drift wave. A nonlinear simulation has also been performed to examine the saturation amplitude of the resistive drift wave turbulence.

Type
Papers
Information
Journal of Plasma Physics , Volume 72 , Issue 6 , December 2006 , pp. 957 - 960
Copyright
2006 Cambridge University Press

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