Results 61 to 70 of about 60,333 (167)

The role of quantum computing in advancing plasma physics simulations for fusion energy and high-energy

open access: yesFrontiers in Physics
Its complexity constrains advancements in fusion energy and high energy applications driven by plasma physics, multiscale phenomena beyond classical computing limits. These transformative solutions, especially in plasma simulations, for which exponential
Yifei Yang
doaj   +1 more source

How Does the Critical Torus Instability Height Vary with the Solar Cycle?

open access: yesThe Astrophysical Journal
The ideal magnetohydrodynamic torus instability can drive the eruption of coronal mass ejections. The critical threshold of magnetic field strength decay for the onset of the torus instability occurs at different heights in different solar active regions,
Alexander W. James   +4 more
doaj   +1 more source

Modeling the ionosphere-thermosphere response to a geomagnetic storm using physics-based magnetospheric energy input: OpenGGCM-CTIM results

open access: yesJournal of Space Weather and Space Climate, 2016
The magnetosphere is a major source of energy for the Earth’s ionosphere and thermosphere (IT) system. Current IT models drive the upper atmosphere using empirically calculated magnetospheric energy input. Thus, they do not sufficiently capture the storm-
Connor Hyunju Kim   +6 more
doaj   +1 more source

Solar Eruptions Triggered by Flux Emergence below or near a Coronal Flux Rope

open access: yesThe Astrophysical Journal
Observations have shown a clear association of filament/prominence eruptions with the emergence of magnetic flux in or near filament channels. Magnetohydrodynamic (MHD) simulations have been employed to systematically study the conditions under which ...
T. Török   +6 more
doaj   +1 more source

The Importance of Ambipolar Heating in the Standard Thin Accretion Disk with Outflows

open access: yesThe Astrophysical Journal
This study examines the importance of the thermal effects of ambipolar diffusion (AD), by analyzing the governing properties in the middle and outer regions of a standard thin accretion disk with outflows.
Mahmoud Gholipour   +1 more
doaj   +1 more source

Magnetohydrodynamic Origin of Jets from Accretion Disks [PDF]

open access: yesarXiv, 1999
A review is made of recent magnetohydrodynamic (MHD) theory and simulations of origin of jets from accretion disks. Many compact astrophysical objects emit powerful, highly-collimated, oppositely directed jets. Included are the extra galactic radio jets of active galaxies and quasars, and old compact stars in binaries, and emission line jets in young ...
arxiv  

Mapping electro-vortex flow patterns from tornado to inverted tornado in a hemispherical container

open access: yesInternational Journal of Thermofluids
This study aims to investigate the intricate interaction between fluid flow and magnetic fields, known as magnetohydrodynamic (MHD) phenomena, within a hemispherical container filled with conducting gallium–indium–tin (Ga-In-Sn) liquid.
M. Abdi   +7 more
doaj  

Numerical analysis of magnetohydrodynamic mixed convection and entropy generation in a curvelinear lid-driven cavity with carbon nanotubes and an adiabatic cylinder

open access: yesInternational Journal of Thermofluids
Mixed convection convection is a vital subject and it is beneficial in many engineering applications. The current paper addresses this subject with a novel geometry and very vital variables including magnetohydrodynamic influences on the forced/free ...
Mohammed Azeez Alomari   +4 more
doaj  

Simulation of β-induced Alfvén eigenmode instabilities and mode transition for HL-3 hybrid scenario

open access: yesNuclear Fusion
A kinetic-magnetohydrodynamic hybrid simulation is performed to investigate the Alfvén eigenmode (AE) and fishbone (FB)/FB-like (FBL) instabilities excited by neutral beam injection (NBI)-deposited energetic particles (EPs) in an HL-3 hybrid scenario ...
Yunpeng Zou   +7 more
doaj   +1 more source

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