Results 91 to 100 of about 63,259 (229)
Modeling Kinetic Reconnection Onset in Global Magnetospheric Simulations
Journal of Geophysical Research: Space Physics, Volume 131, Issue 9, September 2026.Abstract We investigate the onset of magnetic reconnection in Earth's magnetotail using a coupled magnetohydrodynamic with embedded particle‐in‐cell (MHD‐EPIC) model, which self‐consistently links global magnetospheric dynamics to electron‐scale kinetic processes. Unlike standalone kinetic simulations with idealized boundary conditions, reconnection in
Talha Arshad, Yuxi Chen, Gabor Toth
wiley +1 more source
Sunspot Modeling: From Simplified Models to Radiative MHD Simulations
Living Reviews in Solar Physics, 2011 We review our current understanding of sunspots from the scales of their fine structure to their large scale (global) structure including the processes of their formation and decay. Recently, sunspot models have undergone a dramatic change.
Rolf Schlichenmaier, Matthias Rempel
doaj
Space Weather, Volume 24, Issue 9, September 2026.Abstract This paper introduces an updated version of the University of Michigan Geospace model. The Geospace model has been used for operational forecasting at the Space Weather Modeling Center of the National Oceanic and Atmospheric Agency since 2016 with regular updates. The current operational version, Geospace V2, was launched in 2021 and is driven
Gábor Tóth +2 more
wiley +1 more source
Origin and Evolution of Large-scale Magnetic Fields [PDF]
, 2015 Magnetic elds are ubiquitous at all scales in the Universe and have been observed in galaxies and clusters of galaxies via observations of di use radio emission and Faraday Rotation Measures.
Barnes, DJ
core
Critical balance in magnetohydrodynamic, rotating and stratified turbulence : towards a universal scaling conjecture [PDF]
, 2009 It is proposed that critical balance - a scale-by-scale balance between the linear propagation and nonlinear interaction time scales - can be used as a universal scaling conjecture for determining the spectra of strong turbulence in anisotropic wave ...
Nazarenko, Sergey +5 more
core +1 more source
Aspects of three-dimensional MHD : magnetic reconnection and rotating coronae [PDF]
, 2010 Solutions of the magnetohydrodynamic (MHD) equations are very important for modelling laboratory, space and astrophysical plasmas, for example the solar and stellar coronae, as well as for modelling many of the dynamic processes that occur in these ...
Al-Salti, Nasser S.
core +2 more sources
Mathematical Modelling and Analysis, 1998 We will consider the exact finite‐difference scheme for solving the system of differential equations of second order with piece‐wise constant coefficients.
H. Kalis
doaj +1 more source
Structured Energy Conversion in Kelvin‐Helmholtz Instability
Geophysical Research Letters, Volume 53, Issue 15, 16 August 2026.Abstract We present quantitative investigations of the energy conversion pathways—electromagnetic ϵEM $\left({{\epsilon}}^{EM}\right)$, fluid flow ϵf $\left({{\epsilon}}^{f}\right)$, and particle thermal ϵth $\left({{\epsilon}}^{th}\right)$ energies—within the Kelvin‐Helmholtz instability (KHI) observed by the Magnetospheric Multiscale mission. We find
Kyunghwan Dokgo +4 more
wiley +1 more source
A two-component phenomenology for the evolution of MHD turbulence [PDF]
, 2005 Incompressible MHD turbulence with a mean magnetic field B₀ develops anisotropic spectral structure and can be simply described only by including at least two distinct fluctuation components.
Dmitruk, Pablo +2 more
core
Impact of Hall effect on energy decay in magnetohydrodynamic turbulence [PDF]
, 2003 We examine numerically the influence of Hall effect corrections to Ohm's law upon the decay of homogeneous compressible magnetohydrodynamic turbulence and conclude that there are no significant differences in global decay rate associated with the Hall ...
Dmitruk, Pablo +9 more
core +1 more source