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Multi-scale approach to the solution of nonlinear MHD evolution of heliotron plasma

Published online by Cambridge University Press:  20 December 2006

KATSUJI ICHIGUCHI  and
BENJAMIN A. CARRERAS
KATSUJI ICHIGUCHI
Affiliation:
National Institute for Fusion Science, Toki, 509-5292, Japan
BENJAMIN A. CARRERAS
Affiliation:
Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
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Abstract

A multi-scale nonlinear magnetohydrodynamic (MHD) evolution scheme is developed for the numerical analysis of a heliotron plasma as beta increases. In this scheme, the fast time scale dynamics is given by the nonlinear MHD code based on the reduced MHD equations and the slow dynamics is carried out with three-dimensional static equilibrium code. The time evolution is calculated iteratively with a linear interpolation technique for the equilibrium quantities. This scheme is applied to the analysis of the Large Helical Device plasma. Self-organization of the pressure profile induced by the interchange mode is obtained.

Type
Papers
Information
Journal of Plasma Physics , Volume 72 , Issue 6 , December 2006 , pp. 1117 - 1121
Copyright
2006 Cambridge University Press

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