Results 11 to 20 of about 1,092,232 (226)

Electric Analysis of the Maritime Application High-Frequency Magnetohydrodynamic Thruster

open access: yesEnergies, 2023
A magnetohydrodynamic (MHD) thruster is the next-generation electric jet engine for maritime applications. It eliminates the moving mechanical components that make the noises and reduces physical harm to sea creatures.
Kin Lung Jerry Kan   +2 more
doaj   +2 more sources

Nozzle Shocks, Disk Tearing, and Streamers Drive Rapid Accretion in 3D GRMHD Simulations of Warped Thin Disks [PDF]

open access: yesThe Astrophysical Journal, 2023
The angular momentum of gas feeding a black hole (BH) may be misaligned with respect to the BH spin, resulting in a tilted accretion disk. Rotation of the BH drags the surrounding spacetime, manifesting as Lense–Thirring torques that lead to disk ...
Nicholas Kaaz   +6 more
doaj   +2 more sources

Magnetohydrodynamic Turbulence Formation in Solar Flares: 3D Simulation and Synthetic Observations [PDF]

open access: yesThe Astrophysical Journal, 2023
Turbulent plasma motion is common in the universe and invoked in solar flares to drive effective acceleration leading to high-energy electrons. Unresolved mass motions are frequently detected in flares from extreme ultraviolet (EUV) observations, which ...
W. Ruan, L. Yan, R. Keppens
doaj   +2 more sources

Response to “Comment on ‘Magnetohydrodynamic simulations of direct current helicity injection for current drive in tokamaks’ ’’ [Phys. Plasmas 3, 1038 (1996)] [PDF]

open access: bronzePhysics of Plasmas, 1997
We agree that additional effects (toroidicity, Hall and rotamak effects, and Lundquist number scaling) will alter the physics and magnetohydrodynamic simulation of HIT experiments. Future research will clarify the importance of these effects. (AIP)
C. R. Sovinec, S. C. Prager
openalex   +2 more sources

Review of Conductive Reciprocating Liquid Metal Magnetohydrodynamic Generators

open access: yesEnergies
Reciprocating liquid metal magnetohydrodynamic (MHD) power generation is a new MHD power generation method in which the working fluid is a single-phase liquid metal with a low melting point and high conductivity.
Lingzhi Zhao, Aiwu Peng
doaj   +2 more sources

Simulating X-Ray Reverberation in the Ultraviolet-emitting Regions of Active Galactic Nuclei Accretion Disks with Three-dimensional Multifrequency Radiation Magnetohydrodynamic Simulations

open access: yesThe Astrophysical Journal Letters
Active galactic nuclei (AGN) light curves observed with different wave bands show that the variability in longer wavelength bands lags the variability in shorter wavelength bands.
Amy Secunda   +2 more
doaj   +2 more sources

Properties of Magnetohydrodynamic Modes in Compressively Driven Plasma Turbulence [PDF]

open access: yesPhysical Review X, 2020
We study properties of magnetohydrodynamic (MHD) eigenmodes by decomposing the data of MHD simulations into linear MHD modes—namely, the Alfvén, slow magnetosonic, and fast magnetosonic modes.
K. D. Makwana, Huirong Yan
doaj   +2 more sources

Self-similar Cosmic-Ray Transport in High-resolution Magnetohydrodynamic Turbulence

open access: yesThe Astrophysical Journal Letters
We study the propagation of cosmic rays (CRs) through a simulation of magnetohydrodynamic (MHD) turbulence at an unprecedented resolution of 10,240 ^3 . We drive turbulence that is subsonic and super-Alfvénic, characterized by δB _rms / B _0  = 2.
Philipp Kempski   +7 more
doaj   +2 more sources

Global simulations of kinetic-magnetohydrodynamic processes with energetic electrons in tokamak plasmas [PDF]

open access: yesNuclear Fusion, 2023
The energetic electrons (EEs) produced from auxiliary heatings have been found to destabilize various Alfven eigenmodes (AEs) in recent experiments. To investigate EE relevant kinetic-magnetohydrodynamic (MHD) processes, a global fluid-kinetic hybrid ...
J. Bao   +9 more
semanticscholar   +1 more source

Chromospheric Jets and Their Properties [PDF]

open access: yesIranian Journal of Astronomy and Astrophysics, 2022
In this study we review solar chromospheric jets and characteristics of them. The chromosphere and transition region are the interface between the solar photosphere and the corona, which plays a key role in the formation and acceleration of the solar ...
Ehsan Tavabi, Sima Zeighami
doaj   +1 more source

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