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We establish the local existence and uniqueness of solutions to the free-boundary ideal compressible magnetohydrodynamic equations with surface tension in three spatial dimensions by a suitable modification of the Nash--Moser iteration…

偏微分方程分析 · 数学 2022-11-02 Yuri Trakhinin , Tao Wang

This work examines the controllability of planar incompressible ideal magnetohydrodynamics (MHD). Interior controls are obtained for problems posed in doubly-connected regions; simply-connected configurations are driven by boundary…

偏微分方程分析 · 数学 2025-08-13 Manuel Rissel

We show that in 3-dimensional ideal magnetohydrodynamics there exist infinitely many bounded solutions that are compactly supported in space-time and have non-trivial velocity and magnetic fields. The solutions violate conservation of total…

偏微分方程分析 · 数学 2020-10-28 Daniel Faraco , Sauli Lindberg , László Székelyhidi

In this work we study linear Maxwell equations with time- and space-dependent matrix-valued permittivity and permeability on domains with a perfectly conducting boundary. This leads to an initial boundary value problem for a first order…

偏微分方程分析 · 数学 2018-05-30 Martin Spitz

We construct and study global solutions for the 3-dimensional incompressible MHD systems with arbitrary small viscosity. In particular, we provide a rigorous justification for the following dynamical phenomenon observed in many contexts:…

偏微分方程分析 · 数学 2016-03-29 Ling-Bing He , Li Xu , Pin Yu

We study an initial-boundary value problem of three-dimensional (3D) compressible isentropic magneto-micropolar fluid equations with Coulomb force and slip boundary conditions in a bounded simply connected domain, whose boundary has a…

偏微分方程分析 · 数学 2024-08-22 Yang Liu , Xin Zhong

The purpose of this paper is to study the incompressible non-resistive MHD equations in $\mathbb{R}^3$. We establish the global well-posedness of classical solutions if the initial data is axially symmetric and the swirl components of the…

偏微分方程分析 · 数学 2022-03-08 Xiaolian Ai , Zhouyu Li

We consider the ideal magnetohydrodynamics (MHD) subjected to a strong magnetic field along $x_1$ direction in three-dimensional thin domains $\Omega_\delta=\mathbb{R}^2\times(-\delta,\delta)$ with slip boundary conditions. It is well-known…

偏微分方程分析 · 数学 2018-04-02 Li Xu

The magnetohydrodynamics (MHD) equations are generally known to be difficult to solve numerically, due to their highly nonlinear structure and the strong coupling between the electromagnetic and hydrodynamic variables, especially for high…

数值分析 · 数学 2022-11-22 Fabian Laakmann

Whether the global existence and uniqueness of strong solutions of $n$-dimensional incompressible magnetohydrodynamic (MHD for short) equations with only kinematic viscosity or magnetic diffusion holds true or not remains an outstanding…

偏微分方程分析 · 数学 2024-02-19 Yaowei Xie , Quansen Jiu , Jitao Liu

We study the incompressible limit of the compressible non-isentropic magnetohydrodynamic equations with zero magnetic diffusivity and general initial data in the whole space $\mathbb{R}^d$ $(d=2,3)$. We first establish the existence of…

偏微分方程分析 · 数学 2011-11-15 Song Jiang , Qiangchang Ju , Fucai Li

We consider the initial-boundary value problem in the quarter space for the system of equations of ideal Magneto-Hydrodynamics for compressible fluids with perfectly conducting wall boundary conditions. On the two parts of the boundary the…

偏微分方程分析 · 数学 2024-11-20 Paolo Secchi

The relationship between the compressible magnetohydrodynamic flows with low Mach number and the incompressible magnetohydrodynamic flows is investigated. More precisely, the convergence of weak solutions of the compressible isentropic…

偏微分方程分析 · 数学 2009-04-24 Xianpeng Hu , Dehua Wang

Compressible ideal magnetohydrodynamics (MHD) is formulated in terms of the time evolution of potential vorticity and magnetic flux per unit mass using a compact Lie bracket notation. It is demonstrated that this simplifies analytic…

等离子体物理 · 物理学 2014-02-03 Wayne Arter

We are concerned with the 3D incompressible Hall-magnetohydro-dynamic system (Hall-MHD). Our first aim is to provide the reader with an elementary proof of a global well-posedness result for small data with critical Sobolev regularity, in…

偏微分方程分析 · 数学 2019-12-20 Raphaël Danchin , Jin Tan

The existence of global-in-time classical solutions to the Cauchy problem of incompressible Magnetohydrodynamic flows with zero magnetic diffusivity is considered in two dimensions. The linearization of equations is a degenerated…

偏微分方程分析 · 数学 2014-05-02 Xianpeng Hu , Fanghua Lin

Ideal systems like MHD and Euler flow may develop singularities in vorticity (w = curl v). Viscosity and resistivity are dissipative regularizations. We propose a minimal, local, conservative, nonlinear, dispersive regularization of…

流体动力学 · 物理学 2016-11-15 Govind S. Krishnaswami , Sonakshi Sachdev , Anantanarayanan Thyagaraja

We show at the PDE level that the monolithic parabolic regularization of the equations of ideal magnetohydrodynamics (MHD) is compatible with all the generalized entropies, fulfills the minimum entropy principle, and preserves the…

数值分析 · 数学 2022-08-10 Tuan Anh Dao , Murtazo Nazarov

This paper concerns the initial-boundary-value problem (IBVP) of the compressible Magnetohydrodynamic (MHD) equations in 3D exterior domains with Navier-slip boundary conditions for the velocity and perfect conducting conditions for the…

偏微分方程分析 · 数学 2026-02-06 Jiaxu Li , Boqiang Lü , Bing Yuan

In this paper, we prove the energy and cross-helicity conservation of weak solutions to the three-dimensional ideal MHD equations in bounded domain under the interior Besov regularity conditions which are exactly same as the…

偏微分方程分析 · 数学 2018-11-02 Yi Wang , Bijun Zuo