# Ideal magnetohydrodynamic simulation of magnetic bubble expansion as a model for extragalactic radio lobes

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Recently the nonlinear magnetohydrodynamic (MHD) model corrected by pressure anisotropy and Hall current arising from the ion inertia is applied to construct slow or mirror mode structures and compare with the observation in the Earthâ€™s magnetosphere [K. Stasiewicz, Phys. Rev. Lett. 93,...

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Solutions of the AlfvÃ©n wave continuum equation for a pressureless, magnetohydrodynamic plasma in nonaxisymmetric, toroidal geometry are presented. The analysis is based on the Hamiltonian form of the continuum equation along lines of force of the equilibrium magnetic field. Canonical...

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A three-dimensional self-organization process of a compressible dissipative plasma with a velocity-magnetic field correlation is investigated in detail by means of a variational method and a magnetohydrodynamic simulation. There are two types of relaxation, i.e., fast relaxation in which the...

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Two qualitative electron magnetohydrodynamic models are developed of an enhanced-rate (in comparison with ordinary diffusion) propagation of a magnetic field in a plasma due to the Hall effect. The first model is based on a simple hydrodynamic approach, which in particular makes it possible to...

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Kinetic equations with the BGK collision integral are used to derive MHD equations for a weakly ionized plasma that are applicable over a broad range of magnetic field strengths. In strong magnetic fields, a substantial contribution to the transverse diffusion of the magnetic field comes from...

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Results are presented from MHD simulations of three-dimensional flows of a high-conductivity plasma in the vicinity of a null point of a magnetic field. The excitation of an electric current at the boundary of the computation region results in self-consistent plasma flows and change in the...

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Focuses on the interaction between two- and three-dimensional plasma modes and a mean sheared magnetic field using a three-dimensional magnetohydrodynamic spectral Galerkin computation. Possible evolution of a plasma vortex street configuration when two velocity and one magnetic shear layer...

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Describes a computer simulation of a magnetohydrodynamic dynamo in a rapidly rotating spherical shell. Influence of resistivity on total magnetic energy and total kinetic energy of convection motion; Comparison of the two ways in which the magnetic field is organized.

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Presents a computational investigation of magnetic helicity of the fluctuating magnetic field in ideal and freely decaying three-dimensional magnetohydrodynamics in the presence of a uniform mean magnetic field. Effects of the absence of a mean magnetic field; Presence of a new 'generalized'...