Results 21 to 30 of about 59,962 (177)

Effect of nanoparticle shape on unsteady liquid film flow of MHD Oldroyd-B ferrofluid

open access: yesAin Shams Engineering Journal, 2021
A computational framework is carried out to investigate the drive, and thermal transport of the thin-film flow of unstable magnetohydrodynamic (MHD) Oldroyd-B ferrofluid suspend with cobalt ferrite (CoFe2O4) nanoparticles in water.
Iskander Tlili   +3 more
doaj  

The turbulence driving parameter of molecular clouds in disc galaxies [PDF]

open access: yes, 2020
Supersonic turbulence plays a pivotal role during the formation of molecular clouds and stars in galaxies. However, little is known about how the fraction of compressive and solenoidal modes in the velocity field evolves over time and how it depends on properties of the molecular cloud or the galactic environment.
arxiv   +1 more source

Unveiling the Mechanism for the Rapid Acceleration Phase in a Solar Eruption

open access: yesThe Astrophysical Journal Letters, 2023
Two major mechanisms have been proposed to drive the solar eruptions: the ideal magnetohydrodynamic instability and the resistive magnetic reconnection. Due to the close coupling and synchronicity of the two mechanisms, it is difficult to identify their ...
Ze Zhong   +4 more
doaj   +1 more source

A Multi-Pump Magnetohydrodynamics Lab-On-A-Chip Device for Automated Flow Control and Analyte Delivery

open access: yesSensors, 2020
This article shows the development of a computer-controlled lab-on-a-chip device with three magnetohydrodynamic (MHD) pumps and a pneumatic valve. The chip was made of a stack of layers of polymethylmethacrylate (PMMA), cut using a laser engraver and ...
Rafael M. Cardoso   +4 more
doaj   +1 more source

General Relativistic Magnetohydrodynamic Simulations of Black Hole Accretion Disks [PDF]

open access: yesProg.Theor.Phys.Suppl.155:132-139,2004, 2004
Observations are providing increasingly detailed quantitative information about the accretion flows that power such high energy systems as X-ray binaries and active galactic nuclei. Analytic models of such systems must rely on assumptions such as regular flow geometry and a simple, parameterized stress.
arxiv   +1 more source

Can Multi-Threaded Flux Tubes in Coronal Arcades Support a Magnetohydrodynamic Avalanche? [PDF]

open access: yes, 2021
Magnetohydrodynamic (MHD) instabilities allow energy to be released from stressed magnetic fields, commonly modelled in cylindrical flux tubes linking parallel planes, but, more recently, also in curved arcades containing flux tubes with both footpoints in the same photospheric plane.
arxiv   +1 more source

Stationary accretion disks launching super fast-magnetosonic MHD jets [PDF]

open access: yesAstrophys.J. 601 (2004) L139-L142, 2003
We present self-similar models of resistive viscous Keplerian disks driving non-relativistic magnetohydrodynamics (MHD) jets becoming super fast-magnetosonic. We show that in order to obtain such solutions, the thermal pressure must be a sizeable fraction of the poloidal magnetic pressure at the Alfven surface.
arxiv   +1 more source

Studying Interstellar Turbulence Driving Scales using the Bispectrum [PDF]

open access: yes, 2022
We demonstrate the utility of the bispectrum, the Fourier three-point correlation function, for studying driving scales of magnetohydrodynamic (MHD) turbulence in the interstellar medium. We calculate the bispectrum by implementing a parallelized Monte Carlo direct measurement method, which we have made publicly available.
arxiv   +1 more source

Effect of resistive heating on incessantly poignant thin needle in magnetohydrodynamic Sakiadis hybrid nanofluid

open access: yesAin Shams Engineering Journal, 2021
The flow and energy transport of water-ethylene glycol (EG) based Ti-Cu hybrid nanofluid due to incessantly poignant needle in magnetohydrodynamic Sakiadis flow with resistive heating is investigated.
Iskander Tlili   +4 more
doaj  

A Liquid-Metal Based Spiral Magnetohydrodynamic Micropump

open access: yesMicromachines, 2017
A liquid-metal based spiral magnetohydrodynamic (MHD) micropump is proposed in this work. The micropump was fabricated in a polydimethylsiloxane (PDMS)-glass hybrid microfluidic chip.
Xuyan Zhou, Meng Gao, Lin Gui
doaj   +1 more source

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