Results 41 to 50 of about 13,974 (235)

Multidimensional Simulations of Core Convection

open access: yesGalaxies, 2023
The cores of main sequence intermediate- and high-mass stars are convective. Mixing at the radiative–convective boundary, waves excited by the convection, and magnetic fields generated by convective dynamos all influence the main sequence and post-main ...
Daniel Lecoanet, Philipp V. F. Edelmann
doaj   +1 more source

Trefftz spectral method for elliptic equations of general type

open access: yesComputer Assisted Methods in Engineering and Science, 2023
A new numerical method for 2D linear elliptic partial differential equations in an arbitrary geometry is presented. The special feature of the method presented is that the trial functions, which are used to approximate a solution, satisfy the PDE only ...
Sergiy Reutskiy, Brunello Tirozzi
doaj  

Transition to Equilibrium and Coherent Structure in Ideal MHD Turbulence, Part 2

open access: yesFluids, 2023
We continue our study of the transition of ideal, homogeneous, incompressible, magnetohydrodynamic (MHD) turbulence from non-equilibrium initial conditions to equilibrium using long-time numerical simulations on a 1283 periodic grid.
John V. Shebalin
doaj   +1 more source

First Principles Description of Plasma Expansion Using the Expanding Box Model

open access: yesUniverse, 2023
Multi-scale modeling of expanding plasmas is crucial for understanding the dynamics and evolution of various astrophysical plasma systems such as the solar and stellar winds. In this context, the Expanding Box Model (EBM) provides a valuable framework to
Sebastián Echeverría-Veas   +3 more
doaj   +1 more source

Anisotropic three-dimensional MHD turbulence [PDF]

open access: yes, 1996
Direct spectral method simulation of the three-dimensional magnetohydrodynamics (MHD) equations is used to explore anisotropy that develops from initially isotropic fluctuations as a consequence of a uniform applied magnetic field.
Matthaeus, William H.   +7 more
core   +1 more source

Lax representations for the magnetohydrodynamics equations [PDF]

open access: yes, 2023
We find Lax representations and derive special B{\"a}cklund transformations for the reduced magnetohydrodynamics equations and the ideal magnetohydrodynamics ...
Morozov, Oleg I.
core  

Magnetohydrodynamic process in solar activity

open access: yesTheoretical and Applied Mechanics Letters, 2014
Magnetohydrodynamics is one of the major disciplines in solar physics. Vigorous magnetohydrodynamic process is taking place in the solar convection zone and atmosphere.
Jingxiu Wang, Jie Jiang
doaj   +1 more source

One-form superfluids & magnetohydrodynamics

open access: yesJournal of High Energy Physics, 2020
We use the framework of generalised global symmetries to study various hydrodynamic regimes of hot electromagnetism. We formulate the hydrodynamic theories with an unbroken or a spontaneously broken U(1) one-form symmetry. The latter of these describes a
Jay Armas, Akash Jain
doaj   +1 more source

Two-Field Excitation for Contactless Inductive Flow Tomography

open access: yesSensors
Contactless inductive flow tomography (CIFT) is a flow measurement technique allowing for visualization of the global flow in electrically conducting fluids.
Max Sieger   +6 more
doaj   +1 more source

Relativistic magnetohydrodynamics

open access: yesJournal of High Energy Physics, 2017
We present the equations of relativistic hydrodynamics coupled to dynamical electromagnetic fields, including the effects of polarization, electric fields, and the derivative expansion.
Juan Hernandez, Pavel Kovtun
doaj   +1 more source

Home - About - Disclaimer - Privacy