Plasma relaxation and topological aspects in Hall magnetohydrodynamics
Abbreviated Journal Title
Physics, Fluids & Plasmas
Parker's formulation of isotopological plasma relaxation process in magnetohydrodynamics (MHD) is extended to Hall MHD. The torsion coefficient a in the Hall MHD Beltrami condition turns out now to be proportional to the potential vorticity. The Hall MHD Beltrami condition becomes equivalent to the potential vorticity conservation equation in two-dimensional (2D) hydrodynamics if the Hall MHD Lagrange multiplier beta is taken to be proportional to the potential vorticity as well. The winding pattern of the magnetic field lines in Hall MHD then appears to evolve in the same way as potential vorticity lines in 2D hydrodynamics. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4737093]
Physics of Plasmas
"Plasma relaxation and topological aspects in Hall magnetohydrodynamics" (2012). Faculty Bibliography 2010s. 3297.