Results 61 to 70 of about 5,169 (254)

Hybrid Data-driven Magnetofrictional and Magnetohydrodynamic Simulations of an Eruptive Solar Active Region [PDF]

, 2023
A. N. Afanasyev, Yuhong Fan, Maria D. Kazachenko, Mark C. M. Cheung   +3 more
openalex   +1 more source

Magnetohydrodynamic simulations of black hole accretion [PDF]

AIP Conference Proceedings, 2001
We discuss the results of three-dimensional magnetohydrodynamic simulations, using a pseudo-Newtonian potential, of thin disk (h/r ~ 0.1) accretion onto black holes. We find (i) that magnetic stresses persist within the marginally stable orbit, and (ii) that the importance of those stresses for the dynamics of the flow depends upon the strength of ...
Reynolds, Christopher S., Armitage, Philip J., Chiang, James   +2 more
openaire   +2 more sources

Bioconvection Darcy–Forchheimer Flow of Ree‐Eyring Nanofluid Over a Riga Plate With Arrhenius Activation Energy and Viscous Dissipation

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT This work examines the intricate interactions of heat radiation, viscous dissipation, the Cattaneo–Christov thermal model, gyrotactic microorganisms, Arrhenius activation energy, and Darcy–Forchheimer flow affecting Ree‐Eyring nanofluid behavior across a Riga plate.
M. Vinodkumar Reddy, V. Sivaramakrishna, Jintu Mani Nath, V. V. L. Deepthi, Bamdeb Dey   +4 more
wiley   +1 more source

A Coscaling Grid for Athena++. II. Magnetohydrodynamics

The Astrophysical Journal Supplement Series
We extend the coscaling formalism of Habegger & Heitsch implemented in Athena++ to magnetohydrodynamics. The formalism relies on flow symmetries in astrophysical problems involving expansion, contraction, and center-of-mass motion. The formalism is fully
Fabian Heitsch, Roark Habegger
doaj   +1 more source

Non-thermal broadening of IRIS Fe XXI line caused by turbulent plasma flows in the magnetic reconnection region during solar eruptions

Frontiers in Astronomy and Space Sciences, 2023
Magnetic reconnection is the key mechanism for energy release in solar eruptions, where the high-temperature emission is the primary diagnostic for investigating the plasma properties during the reconnection process.
Chengcai Shen, Vanessa Polito, Vanessa Polito, Vanessa Polito, Katharine K. Reeves, Bin Chen, Sijie Yu, Xiaoyan Xie   +7 more
doaj   +1 more source

Simulations of stellar/pulsar wind interaction along one full orbit

, 2012
The winds from a non-accreting pulsar and a massive star in a binary system collide forming a bow-shaped shock structure. The Coriolis force induced by orbital motion deflects the shocked flows, strongly affecting their dynamics.
Abdo, Abramowski, Ackermann, Aharonian, Aharonian, Ball, Barkov, Bednarek, Blondin, Blondin, Bogovalov, Bogovalov, Bongiorno, Bosch-Ramon, Bosch-Ramon, Bosch-Ramon, Chernyakova, Colella, D. Khangulyan, Dubus, Dubus, Gayley, Johnston, Johnston, Kennel, Khangulyan, Khangulyan, Khangulyan, Khangulyan, M. Perucho, M. V. Barkov, Mignone, Mignone, Moldón, Moldón, Negueruela, Okazaki, Perucho, Perucho, Perucho, Pittard, Ribó, Romero, Takahashi, Tam, Tavani, V. Bosch-Ramon   +46 more
core   +1 more source

Bioconvective Chemically Reactive Radiative Squeezing Flow of a Casson Hybrid Nanofluid Between Two Parallel Plates Under Variable Viscosity

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Hybrid nanofluids, known for their superior thermal and electrical conductivity, have demonstrated remarkable potential in enhancing the heat transfer capability of conventional base fluids. This study analyzes the effects of viscous dissipation and heat radiation on two‐dimensional unsteady incompressible squeezing flow transporting hybrid ...
Hajra Batool, Dur‐e‐Shehwar Sagheer, Muhammad Sabeel Khan, Hassan Shahzad   +3 more
wiley   +1 more source

The Impact of Cosmic Ray Injection on Magnetic Flux Tubes in a Galactic Disk

The Astrophysical Journal, 2023
In a seminal paper, Parker showed the vertical stratification of the interstellar medium (ISM) is unstable if magnetic fields and cosmic rays provide too large a fraction of pressure support. Cosmic ray acceleration is linked to star formation, so Parker’
Roark Habegger, Ellen G. Zweibel, Sherry Wong   +2 more
doaj   +1 more source

Turning AGN Bubbles into Radio Relics with Sloshing: Modeling CR Transport with Realistic Physics

Galaxies, 2021
Radio relics are arc-like synchrotron sources at the periphery of galaxy clusters, produced by cosmic-ray electrons in a μG magnetic field, which are believed to have been (re-)accelerated by merger shock fronts.
John ZuHone, Kristian Ehlert, Rainer Weinberger, Christoph Pfrommer   +3 more
doaj   +1 more source

Magnetohydrodynamic simulation code CANS+: Assessments and applications

Publications of the Astronomical Society of Japan, 2019
Abstract We present a new magnetohydrodynamic (MHD) simulation package with the aim of providing accurate numerical solutions to astrophysical phenomena where discontinuities, shock waves, and turbulence are inherently important. The code implements the Harten–Lax–van Leer–discontinuitues (HLLD) approximate Riemann solver, the fifth ...
Yosuke Matsumoto, Yuta Asahina, Yuki Kudoh, Tomohisa Kawashima, Jin Matsumoto, Hiroyuki R Takahashi, Takashi Minoshima, Seiji Zenitani, Takahiro Miyoshi, Ryoji Matsumoto   +9 more
openaire   +2 more sources