Results 51 to 60 of about 256,993 (354)

Remarks on Liouville type theorems for the steady MHD and Hall-MHD equations [PDF]

open access: yes, 2021
In this note we investigate Liouville type theorems for the steady three dimensional MHD and Hall-MHD equations, and show that the velocity field $u$ and the magnetic field $B$ are vanishing provided that $B\in L^{6,\infty}(\mathbb{R}^3)$ and $u\in BMO^{-1}(\mathbb{R}^3)$, which state that the velocity field plays an important role.
arxiv   +1 more source

On the magnetohydrodynamic load and the magnetohydrodynamic metage [PDF]

open access: yesPhysics of Plasmas, 2008
In analogy with the load and the metage in hydrodynamics, this paper defines magnetohydrodynamic load and magnetohydrodynamic metage in the case of magnetofluids. They can be used to write the magnetic field in MHD in Clebsch’s form. It has been shown herein how these two concepts can be utilized to derive the magnetic analog of the Ertel’s theorem and
Partha Guha, Sagar Chakraborty
openaire   +3 more sources

Multiscaling in Models of Magnetohydrodynamic Turbulence [PDF]

open access: yes, 1997
From a direct numerical simulation of the MHD equations we show, for the first time, that velocity and magnetic-field structure functions exhibit multiscaling, extended self similarity (ESS), and generalized extended self similarity (GESS).
Basu, Abhik   +3 more
core   +2 more sources

Formal derivation and stability analysis of boundary layer models in MHD [PDF]

open access: yes, 2016
We provide a systematic derivation of boundary layer models in magnetohydrodynamics (MHD), through an asymptotic analysis of the incompressible MHD system.
D. Gérard-Varet, Marco Prestipino
semanticscholar   +1 more source

Sisko nanofluid flow through exponential stretching sheet with swimming of motile gyrotactic microorganisms: An application to nanoengineering

open access: yesOpen Physics, 2023
The swimming of motile gyrotactic microorganism’s phenomenon has recently become one of the most important topics in research due to its applicability in biotechnology, many biological systems, and numerous engineering fields.
Dadhich Yogesh   +5 more
doaj   +1 more source

Nonlinear theory of non-axisymmetric resonant slow waves in straight magnetic flux tubes [PDF]

open access: yes, 2000
Nonlinear resonant slow magnetohydrodynamic (MHD) waves are studied in weakly dissipative isotropic plasmas for a cylindrical equilibrium model. The equilibrium magnetic field lines are unidirectional and parallel with the z axis. The nonlinear governing
Ballai, I., Erdélyi, R., Goossens, M.
core   +1 more source

Mixed Properties of MHD Waves in Non-uniform Plasmas

open access: yesFrontiers in Astronomy and Space Sciences, 2019
This paper investigates the mixed properties of MHD waves in a non-uniform plasma. It starts with a short revision of MHD waves in a uniform plasma of infinite extent. In that case the MHD waves do not have mixed properties. They can be separated in Alfv\
M. Goossens   +2 more
semanticscholar   +1 more source

Magnetohydrodynamic with Adaptively Embedded Particle-in-Cell model: MHD-AEPIC [PDF]

open access: yes, 2021
Space plasma simulations have seen an increase in the use of magnetohydrodynamic (MHD) with embedded Particle-in-Cell (PIC) models. This combined MHD-EPIC algorithm simulates some regions of interest using the kinetic PIC method while employing the MHD description in the rest of the domain.
arxiv   +1 more source

Diffusion and dispersion of passive tracers: Navier-Stokes versus MHD turbulence [PDF]

open access: yes, 2007
A comparison of turbulent diffusion and pair-dispersion in homogeneous, macroscopically isotropic Navier-Stokes (NS) and nonhelical magnetohydrodynamic (MHD) turbulence based on high-resolution direct numerical simulations is presented.
A Busse   +6 more
core   +3 more sources

Entropy Analysis in Mixed Convection MHD flow of Nanofluid over a Non-linear Stretching Sheet

open access: yesJournal of Thermal Science and Technology, 2012
This article deals with a numerical study of entropy analysis in mixed convection MHD flow of nanofluid over a non-linear stretching sheet taking into account the effects of viscous dissipation and variable magnetic field.
Meisam HABIBI MATIN   +2 more
doaj   +1 more source

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