Multi-region relaxed magnetohydrodynamics with flow
Plasma Physics
2014-04-04 v2
Abstract
We present an extension of the multi-region relaxed magnetohydrodynamics (MRxMHD) equilibrium model that includes plasma flow. This new model is a generalization of Woltjer's model of relaxed magnetohydrodynamics equilibria with flow. We prove that as the number of plasma regions becomes infinite our extension of MRxMHD reduces to ideal MHD with flow. We also prove that some solutions to MRxMHD with flow are not time-independent in the laboratory frame, and instead have 3D structure which rotates in the toroidal direction with fixed angular velocity. This capability gives MRxMHD potential application to describing rotating 3D MHD structures such as 'snakes' and long-lived modes.
Keywords
Cite
@article{arxiv.1401.3076,
title = {Multi-region relaxed magnetohydrodynamics with flow},
author = {G. R. Dennis and S. R. Hudson and R. L. Dewar and M. J. Hole},
journal= {arXiv preprint arXiv:1401.3076},
year = {2014}
}
Comments
11 pages, 2 figures