Limitations on the stabilization of resistive tearing modes

Autor:	T. A. Gianakon
Rok vydání:	2001
Předmět:	Physics Resistive touchscreen Condensed matter physics Context (language use) Mechanics Plasma Current source Condensed Matter Physics Magnetic field Physics::Plasma Physics Physics::Space Physics Tearing Magnetohydrodynamic drive Magnetohydrodynamics
Zdroj:	Physics of Plasmas. 8:4105-4110
ISSN:	1089-7674 1070-664X
DOI:	10.1063/1.1391447
Popis:	A study of the passive stabilization of resistive magnetohydrodynamic (MHD) tearing modes is presented in the context of zero β full-MHD equations with the NIMROD [A. H. Glasser et al., Plasma Phys. Controlled Fusion 41, A747 (1999)] code. The stabilization effect of the current is modeled by a source term in the Ohm’s law. This source term is evaluated based on a diffusive model with anisotropic diffusivities parallel and perpendicular to the perturbed magnetic field lines and driven by a spatially localized source. The effects of spatial localization of the current source are explored that illustrate stabilization down to a combination of source current channel width and parallel and perpendicular diffusion scale lengths.
Databáze:	OpenAIRE
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