The paper presents the semi-numerical solution for the magnetohydrodynamic (MHD) viscous flow due to a stretching sheet caused by boundary layer of an incompressible viscous flow. The governing partial differential equations of momentum equations are reduced into a nonlinear ordinary differential equation (NODE) by using a classical similarity transformation along with appropriate boundary cond...

This work is concerned with a stochastic magnetohydrodynamic (MHD) system in 3D thin domain. Although the individual solution may be chaotic fluid dynamics, stationary measure essential to capture complex dynamical behaviors view of statistics. We first borrow α-approximation model derive MHD system. Then, we further prove that converges weakly counterpart corresponding 2D as thickness domain t...

Abstract In this paper, the Cauchy problem for one-dimensional compressible isentropic magnetohydrodynamic (MHD) equations with no vacuum at infinity is considered, but initial can be permitted inside region. By deriving a priori ν (resistivity coefficient)-independent estimates, we establish non-resistive limit of global strong solutions large data. Moreover, as by-product, well-posedness resi...

Magnetohydrodynamic (MHD) waves are analysed in the early Universe, in the inflationary era, assuming the Universe to be filled with a nonviscous fluid of the Zel’dovich type (p = ρ) in a metric of the de Sitter form. A spatially uniform, time dependent, magnetic field B0 is assumed to be present. The Einstein equations are first solved to give the time dependence of the scale factor, assuming ...

Global magnetohydrodynamic (MHD) simulations of the Earth's magnetosphere must be coupled with a dynamical ionospheric module in order to give realistic results. The usual approach is to compute the ®eld-aligned current (FAC) from the magnetospheric MHD variables at the ionospheric boundary. The ionospheric potential is solved from an elliptic equation using the FAC as a source term. The plasma...

We calculate the relative grain-grain motions arising from interstellar magnetohydrodynamic (MHD) turbulence. The MHD turbulence includes both fluid motions and magnetic fluctuations. While the fluid motions accelerate grains through hydro-drag, the electromagnetic fluctuations accelerate grains through resonant interactions. We consider both incompressive (Alfvén) and compressive (fast and slo...

We review the basic approximations underlying magnetohydrodynamic (MHD) theory, with special emphasis on the closure approximations, i.e. the approximations used in any fluid approach to close the hierarchy of moment equations. We then present the main closure models that have been constructed for collisionless plasmas in the large-scale regime, and we describe our own mixed MHD-kinetic model, ...

Among the many challenges facing modern space physics today is the need for a visualisation and analysis package which can examine the results from the diversity of numerical and empirical computer models as well as observational data. Magnetohydrodynamic (MHD) models represent the latest numerical models of the complex Earth’s space environment and have the unique ability to span the enormous ...

Results from the Swarthmore Spheromak Experiment ~SSX! @M. R. Brown, Phys. Plasmas 6, 1717 ~1999!# indicate that formation and partial merging of two spheromak plasmas can be described well by a magnetohydrodynamic ~MHD! picture in which there is substantial evolution towards force free states within each vessel, while reconnection activity, also described reasonably well by MHD, occurs in the ...

Background During Cardiac Magnetic Resonance Imaging (CMR), blood plasma electrolytes ejected into the aorta during early systole interact with the static magnetic field of the MR scanner (B0) to produce a Magnetohydrodynamic (MHD) Effect [1]. Electrocardiograms (ECGs) recorded in the presence of B0 are overlaid with induced MHD voltages (VMHD), leading to non-robustly synchronized imaging [2],...