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In this paper, the global smooth solution of Cauchy's problem of incompressible, resistive, viscous Hall-magnetohydrodynamics (Hall-MHD) is studied. By exploring the nonlinear structure of Hall-MHD equations, a class of large initial data…

偏微分方程分析 · 数学 2021-04-29 Huali Zhang

This paper rigorously analyzes how the {\it large box limit} fundamentally alters the global existence theory and dynamics behavior of the incompressible magnetohydrodynamics (MHD) system with small viscosity/resistivity $(0<\mu\ll 1)$ on…

偏微分方程分析 · 数学 2025-11-04 Li Xu , Jiahui Zhang

In this paper, we consider the global well-posedness of the incompressible Hall-MHD equations in $\mathbb{R}^3$. We prove that the solution of this system is globally regular if the initial data is axisymmetric and the swirl components of…

偏微分方程分析 · 数学 2021-05-07 Zhouyu Li , Pan Liu

The present paper is dedicated to the global well-posedness for the 3D inhomogeneous incompressible Navier-Stokes equations, in critical Besov spaces without smallness assumption on the variation of the density. We aim at extending the work…

偏微分方程分析 · 数学 2016-08-09 Xiaoping Zhai , Zhaoyang Yin

In this article, we consider the 3D-rotating magnetohydrodynamic (MHD) system when the initial velocity and magnetic field both feature some 2D-part (i.-e. depending only on the horizontal space variables). We prove for weak and strong…

偏微分方程分析 · 数学 2025-07-10 Frédéric Charve , Van-Sang Ngo

We present a novel high-order nodal artificial viscosity approach designed for solving Magnetohydrodynamics (MHD) equations. Unlike conventional methods, our approach eliminates the need for ad hoc parameters. The viscosity is…

数值分析 · 数学 2024-04-16 Tuan Anh Dao , Murtazo Nazarov

This paper studies the global well-posedness of the incompressible magnetohydrodynamic (MHD) system with a velocity damping term. We establish the global existence and uniqueness of smooth solutions when the initial data is close to an…

偏微分方程分析 · 数学 2013-11-26 Jiahong Wu , Yifei Wu , Xiaojing Xu

We prove the global well-posedness of the 2D incompressible non-resistive MHD equations with a velocity damping term near the non-zero constant background magnetic field. To this end, we newly design a normal mode method of effectively…

偏微分方程分析 · 数学 2022-10-20 Min Jun Jo , Junha Kim , Jihoon Lee

In this paper, we prove the global existence of smooth solutions to the three-dimensional incompressible magneto-hydrodynamical system with initial data close enough to the equilibrium state, $(e_3,0).$ Compared with the the previous works…

偏微分方程分析 · 数学 2015-11-11 Hammadi Abidi , Ping Zhang

The elliptical instability can take place in planetary cores and stars elliptically deformed by gravitational effects, where it generates large-scale three-dimensional flows assumed to be dynamo capable. In this work, we present the first…

经典物理 · 物理学 2013-09-10 David Cébron , Michael Le Bars , Pierre Maubert , Patrice Le Gal

We present new analytical three-dimensional solutions of the magnetohydrostatic equations, which are applicable to the co-rotating frame of reference outside a rigidly rotating cylindrical body, and have potential applications to planetary…

太阳与恒星天体物理 · 物理学 2017-11-13 Fiona Wilson , Thomas Neukirch

Supercritical collisionless perpendicular shocks have an average macrostructure determined primarily by the dynamics of ions specularly reflected at the magnetic ramp. Within the overall macrostructure, instabilities, both linear and…

空间物理 · 物理学 2016-08-24 David Burgess , Petr Hellinger , Peter W. Gingell , Pavel M. Trávníček

We study the global existence of classical solutions for two-dimensional incompressible MHD system with only magnetic diffusion. By using the time-weighted lower-order energy and uniformly bounded higher-order energy estimates, we prove the…

偏微分方程分析 · 数学 2023-10-27 Yuanyuan Qiao

Rigid particles suspended on a micropolar fluid provide microstructure that coexists and interacts with the local rotation of the fluid given by the vorticity. In this work we prove that the particles' angular velocity and the vorticity…

偏微分方程分析 · 数学 2023-11-10 Robert Guterres , Wilberclay Melo , César Niche , Cilon Perusato , Paulo Zingano

A brief review is given of some well-known and some very recent results obtained in studies of two- and three-dimensional (2D and 3D) solitons. Both zero-vorticity (fundamental) solitons and ones carrying vorticity S = 1 are considered.…

量子气体 · 物理学 2016-12-21 Boris A. Malomed

This paper establishes the global existence and regularity for a system of the two-dimensional (2D) magnetohydrodynamic (MHD) equations with only directional hyperresistivity. More precisely, the equation of $b_1$ (the horizontal component…

偏微分方程分析 · 数学 2017-09-27 Bo-Qing Dong , Jingna Li , Jiahong Wu

In this article, we consider a stochastic ferrohydrodynamic system which describes the Bloch-Torrey regularization of the motion of an electrically conducting ferrofluids driven by transport noise filling a 3D bounded domain with a smooth…

偏微分方程分析 · 数学 2025-07-08 Aristide Ndongmo Ngana , Paul Razafimandimby

We are concerned with the stability of multidimensional (M-D) transonic shocks in steady supersonic flow past multidimensional wedges. One of our motivations is that the global stability issue for the M-D case is much more sensitive than…

偏微分方程分析 · 数学 2017-05-23 Gui-Qiang Chen , Beixiang Fang

We develop a mean-field model to examine the stability of a `quasi-2D suspension' of elongated particles embedded within a viscous membrane. This geometry represents several biological and synthetic settings, and we reveal mechanisms by…

流体动力学 · 物理学 2024-05-22 Harishankar Manikantan

We consider the viscous incompressible fluids in a three-dimensional horizontally periodic domain bounded below by a fixed smooth boundary and above by a free moving surface. The fluid dynamics are governed by the Navier-Stokes equations…

偏微分方程分析 · 数学 2024-04-30 Xing Cheng , Yunrui Zheng