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Numerical solutions of the Enskog-Vlasov (EV) equation are used to determine the velocity distribution function of atoms spontaneously evaporating into near-vacuum conditions. It is found that an accurate approximation is provided by a…

流体动力学 · 物理学 2021-03-15 Sergiu Busuioc , Livio Gibelli , Duncan A. Lockerby , James E. Sprittles

The evolution of an electrically conducting imcompressible fluid with nonconstant density can be described by a set of equations combining the continuity, momentum and Maxwell's equations; altogether known as the inhomogeneous…

偏微分方程分析 · 数学 2024-05-24 Diogo Arsénio , Haroune Houamed , Belkacem Said--Houari

A new model, inspired by the structure of galactic disks, for three-dimensional Bernstein-Greene-Kruskal (BGK) modes in a plasma with a uniform finite background magnetic field is presented. These modes are exact nonlinear solutions of the…

等离子体物理 · 物理学 2024-10-31 C. S. Ng

We consider the relativistic Vlasov-Maxwell system (RVM) on a general axisymmetric spatial domain with perfect conducting boundary which reflects particles specularly, assuming axisymmetry in the problem. We construct continuous global…

偏微分方程分析 · 数学 2023-11-14 Katherine Zhiyuan Zhang

Solutions of the linearized Vlasov-Poisson equations for the electric field radiated by a time varying point charge in a three-dimensional, unbounded, spatially homogeneous plasma with a uniform background magnetic field and a uniform…

等离子体物理 · 物理学 2015-06-04 John J. Podesta

This paper is devoted to the global analysis of the three-dimensional axisymmetric Navier--Stokes--Maxwell equations. More precisely, we are able to prove that, for large values of the speed of light $c\in (c_0, \infty)$, for some threshold…

偏微分方程分析 · 数学 2024-11-20 Diogo Arsénio , Zineb Hassainia , Haroune Houamed

Starting from the Vlasov-Maxwell system, an exact relativistic hydrodynamic closure for a special type water bag distributions satisfying the Vlasov equation has been derived. It has been shown that the hydrodynamic equations are fully…

加速器物理 · 物理学 2011-10-18 Stephan I. Tzenov , Kiril B. Marinov

The NASA Magnetospheric Multiscale mission has made in situ diffusion region and kinetic-scale resolution measurements of asymmetric magnetic reconnection for the first time, in the Earth's magnetopause. The principal theoretical tool…

等离子体物理 · 物理学 2017-09-11 O. Allanson , F. Wilson , T. Neukirch , Y. -H. Liu , J. D. B. Hodgson

An infinite family of relativistic finite thin disk model with magnetic field is presented. The model is obtained for solving the Einstein-Maxwell equations for static spacetimes by means of the Horsk\'y-Mitskievitch generating conjecture.…

宇宙学与河外天体物理 · 物理学 2016-08-14 Antonio C. Gutiérrez-Piñeres , Guillermo A. González

We introduce a system of equations that models a non-isothermal magnetoviscoelastic fluid. We show that the model is thermodynamically consistent, and that the critical points of the entropy functional with prescribed energy correspond…

偏微分方程分析 · 数学 2023-05-24 Hengrong Du , Yuanzhen Shao , Gieri Simonett

We study the large bulk viscosity limit for the compressible magnetohydrodynamics (MHD) equations in two and three dimensions. For arbitrarily large initial data in critical Besov spaces, we prove the global well-posedness of strong…

偏微分方程分析 · 数学 2026-02-06 Gennaro Ciampa , Donatella Donatelli , Giada Pellecchia

We develop a solution theory for a generalized electro-magneto static Maxwell system in an exterior domain with anisotropic coefficients converging at infinity with a certain rate towards the identity. Our main goal is to treat right hand…

偏微分方程分析 · 数学 2011-05-23 Dirk Pauly

A basic model for describing plasma dynamics is given by the Euler-Maxwell system, in which compressible ion and electron fluids interact with their own self-consistent electromagnetic field. In this paper we consider the "one-fluid"…

偏微分方程分析 · 数学 2017-05-24 Yu Deng , Alexandru D. Ionescu , Benoit Pausader

Electrostatic structures have been observed in many regions of space plasmas, including the solar wind, the magnetosphere, the auroral acceleration region, and in association with shocks, turbulence, and magnetic reconnection. Due to…

空间物理 · 物理学 2015-05-28 C. S. Ng , S. J. Soundararajan , E. Yasin

It is shown that incompressible spin quantum Hall magnetohydrodynamics allows an exact solution for the propagation of a circularly polarized electromagnetic wave. The solution is obtained assuming a condition between the fluid velocity and…

等离子体物理 · 物理学 2010-10-19 Felipe A. Asenjo

The purpose of this paper is twofold. In the first part, we provide a new proof of the global existence of the solutions to the Vlasov-Maxwell system with a small initial distribution function. Our approach relies on vector field methods,…

偏微分方程分析 · 数学 2025-03-05 Léo Bigorgne

In this article the static Einstein-Vlasov-Maxwell system is considered in spherical symmetry. This system describes an ensemble of charged particles interacting by general relativistic gravity and Coulomb forces. First, a proof for local…

广义相对论与量子宇宙学 · 物理学 2019-10-09 Maximilian Thaller

We study the Einstein-Maxwell system of equations in spherically symmetric gravitational fields for static interior spacetimes. The condition for pressure isotropy is reduced to a recurrence equation with variable, rational coefficients. We…

广义相对论与量子宇宙学 · 物理学 2015-06-25 S. Thirukkanesh , S. D. Maharaj

The Vlasov-Einstein system describes the evolution of an ensemble of particles (such as stars in a galaxy, galaxies in a galaxy cluster etc.) interacting only by the gravitational field which they create collectively and which obeys…

广义相对论与量子宇宙学 · 物理学 2015-06-25 Gerhard Rein

The Einstein-Vlasov-Maxwell (EVM) system can be viewed as a relativistic generalization of the Vlasov-Poisson (VP) system. As it is proved below, one of nice property obeys by the first system is that the strong energy condition holds and…

广义相对论与量子宇宙学 · 物理学 2007-05-23 P. Noundjeu