In this paper, the flow, thermal and concentration analyses of blood as a third grade with gold as nanoparticles through a porous channel are carried out using regular perturbation method. The analysis are carried out using Vogel’s model of temperature-dependent viscosity. The developed models were used to investigate the effects of the nano particles on the concentration, temperature and veloc...

Plasma ap plicati ons of comput ational techniques based on cellular auto mat a are inhibited by the long-ran ge nature of electromagnetic forc es . On e of the most promis ing features of cellu lar automata methods has been th e parallelism that becomes possible because of the local natu re of th e interactions , leading (for example) to t he absence of Poisson equat ions to be solved in fluid...

In this paper we investigate the use of the vector potential as a means of maintaining the divergence constraint in the numerical solution of the equations of Magnetohydrodynamics (MHD) using the Smoothed Particle Hydrodynamics (SPH) method. We derive a self-consistent formulation of the equations of motion using a variational principle that is constrained by the numerical formulation of both t...

In this era of precision cosmology, a detailed physical understanding on the evolution of cosmic baryons is required. Cosmic magnetic fields, though still poorly understood, may represent an important component in the global cosmic energy flow that affects the baryon dynamics. We have developed an Eulerianbased cosmological magnetohydrodynamics code (CosmoMHD) with modern shock capturing scheme...

Articles you may be interested in Remarks on the regularity criteria of generalized MHD and Navier-Stokes systems Regularity criteria of weak solutions to the three-dimensional micropolar flows Remarks on the blow-up criteria for three-dimensional ideal magnetohydrodynamics equations We study the three-dimensional magnetohydrodynamics system and obtain its regularity criteria in terms of only t...

We formulate axion-electrodynamics and magnetohydrodynamics (MHD) in the cosmological context assuming weak gravity. The two formulations are made for a general scalar field with $f(\ensuremath{\phi})$-coupling, an axion as massive ${\ensuremath{\phi}}^{2}$-coupling, helical electromagnetic field. $\ensuremath{\alpha}$-dynamo term appears naturally from coupling MHD formulation. In presence of ...

We describe a conservative, shock-capturing scheme for evolving the equations of general relativistic magnetohydrodynamics. The fluxes are calculated using the Harten, Lax, and van Leer scheme. A variant of constrained transport, proposed earlier by Tóth, is used to maintain a divergence free magnetic field. Only the covariant form of the metric in a coordinate basis is required to specify the ...

This Letter reports on 3-dimensional simulations of Kerr black hole magnetospheres that obey the general relativistic equations of perfect magnetohydrodynamics (MHD). In particular, we study powerful Poynting flux dominated jets that are driven from dense gas in the equatorial plane in the ergosphere. The physics of which has been previously studied in the simplified limit of an ergopsheric dis...

We propose the generally covariant action for the theory of a self-coupled complex scalar field and electromagnetism which by virtue of constraints is equivalent, in the regime of long wavelengths, to perfect magnetohydrodynamics (MHD). We recover from it the Euler equation with Lorentz force, and the thermodynamic relations for a prefect fluid. The equation of state of the latter is related to...

Magnetic helicity is an invariant of ideal magnetohydrodynamics (MHD) that encodes information on the topology magnetic field lines. It has long been appreciated important constraint for evolution fields in MHD. In applications to solar atmosphere, understanding crucial following and eruption fields. At present, flux can be measured observations but interpretation results difficult due combinat...