Results 91 to 100 of about 40,435 (218)

Parallel Simulations of Hall-Mhd Plasmas

Space Science Reviews, 2006
Plasma processes such as magnetic reconnection, turbulent regimes or dynamo-generated magnetic fields, are well studied within the framework of one-fluid magnetohydrodynamics (MHD). However, there are processes such as the Hall current, which are not covered by the MHD description.
openaire   +2 more sources

Investigation of intermittency in magnetohydrodynamics and solar wind turbulence: scale-dependent kurtosis [PDF]

, 2011
The behavior of scale-dependent (or filtered) kurtosis is studied in the solar wind using magnetic field measurements from the ACE and Cluster spacecraft at 1 AU.
Matthaeus, William H., Osman, Kareem T., Oughton, Sean, Wan, Minping   +3 more
core   +2 more sources

Direct Numerical Simulation of Magnetohydrodynamic Slip‐Flow Past a Stretching Surface Using Physics‐Informed Neural Network

Heat Transfer, Volume 55, Issue 3, Page 1674-1682, May 2026.
ABSTRACT Traditional numerical methods, such as finite difference methods (FDM), finite element methods (FEM), and spectral methods, often face meshing challenges and high computational cost for solving nonlinear coupled differential equations. Machine learning techniques, specifically Physics‐informed machine learning, address these obstacles by ...
Ahmad, Feroz Soomro, Husna Zafar
wiley   +1 more source

The Effect of Coherent Structures on Stochastic Acceleration in MHD Turbulence

, 2005
We investigate the influence of coherent structures on particle acceleration in the strongly turbulent solar corona. By randomizing the Fourier phases of a pseudo-spectral simulation of isotropic MHD turbulence (Re $\sim 300$), and tracing collisionless ...
Achterberg A., Bernard Knaepen, Bieber J. W., Buchner J., Daniele Carati, Dreicer H., Kanbach G., Kaspar Arzner, Kolmogoroff A. N., Kolmogoroff A. N., Loukas Vlahos, Miller J. A., Nicolas Denewet, Urch I. H., Urch I. H.   +14 more
core   +2 more sources

Effect of Field Line Torsion on the Polarization of ULF Waves

Journal of Geophysical Research: Space Physics, Volume 131, Issue 5, May 2026.
Abstract In this paper we suggest a simple modification of the dipole magnetic field which introduces field‐aligned currents and torsion to the field lines. The resulting field lines are not contained in the meridional planes and have resemblance to the geomagnetic field lines in the dawn and dusk flanks of the magnetosphere. We analyze polarization of
K. Kabin, A. W. Degeling, R. Rankin
wiley   +1 more source

Impact Plasma Amplification of the Ancient Mercury Magnetic Field

Journal of Geophysical Research: Planets, Volume 131, Issue 5, May 2026.
Abstract Spacecraft measurements of Mercury indicate that it has a core dynamo with a surface field of 200–800 nT. These data also indicate that the northern hemisphere crust contains remanent magnetization likely produced by an ancient magnetic field. The inferred magnetization intensity is consistent with a wide range of paleofield strengths (0.2–50 ...
Isaac S. Narrett, Rona Oran, Yuxi Chen, Katarina Miljković, Gábor Tóth, Catherine L. Johnson, Benjamin P. Weiss   +6 more
wiley   +1 more source

Modeling the Transport of Solar Energetic Particles in a Corotating Interaction Region

The Astrophysical Journal
We present a new three-dimensional (3D) magnetohydrodynamic (MHD) model and a new 3D energetic particle transport (EPT) model. The 3D MHD model numerically solves the ideal MHD equations using the relaxing total variation diminishing scheme.
Y.-S. Zhong, G. Qin, S.-S. Wu
doaj   +1 more source

Coupled MHD – Hybrid Simulations of Space Plasmas

Journal of Physics: Conference Series, 2020
Abstract Heliospheric plasmas require multi-scale and multi-physics considerations. On one hand, MHD codes are widely used for global simulations of the solar-terrestrial environments, but do not provide the most elaborate physical description of space plasmas.
Moschou, S. P., Sokolov, I. V., Cohen, O., Toth, G., Drake, J. J., Huang, Z., Garraffo, C., Alvarado-Gómez, J. D., Gombosi, T.   +8 more
openaire   +2 more sources

Simultaneous Compressive Kinetic‐Scale Fluctuations and Second‐Harmonic Proton Cyclotron Waves Inside a Martian Magnetosheath Structure

Geophysical Research Letters, Volume 53, Issue 8, 28 April 2026.
Abstract Mars directly interacts with the solar wind and hosts a complex plasma‐wave environment. Using MAVEN observations, we identify an event in the dusk‐side Martian magnetosheath where strongly compressive sub‐cyclotron kinetic‐scale fluctuations coexist with second‐harmonic proton cyclotron waves (PCWs).
Jintian Yang, Song Fu, Xiaotong Yun, Taifeng Jin, Hui Zhang, Shuyue Pang, Yuequn Lou, Longfei Jia, Yibin Zhao, Yi Qin, Binbin Ni   +10 more
wiley   +1 more source

Resistive MHD Jet Simulations with Large Resistivity [PDF]

, 2009
To appear in the proceedings of the "Protostellar Jets in Context" conference held on the island of Rhodes, Greece (7-12 July 2008)
Cemeljic, Miljenko, Gracia, Jose, Vlahakis, Nektarios, Tsinganos, Kanaris   +3 more
openaire   +2 more sources