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相关论文: On the uniqueness for the 2D MHD equations without…

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We report a new finite-difference scheme for two-dimensional magnetohydrodynamics (MHD) simulations, with and without rotation, in unstructured grids with quadrilateral cells. The new scheme is implemented within the code VULCAN/2D, which…

天体物理学 · 物理学 2009-11-13 Eli Livne , Luc Dessart , Adam Burrows , Casey A. Meakin

This paper concerns the Cauchy problem of the nonhomogeneous incompressible magnetohydrodynamic (MHD) equations on the whole two-dimensional (2D) space with vacuum as far field density. In particular, the initial density can have compact…

偏微分方程分析 · 数学 2015-06-17 Boqiang Lv , Zhonghai Xu , Xin Zhong

This paper is concerned with the stability and large-time behavior of 3D incompressible MHD equations with only vertical dissipation near a background magnetic field. By making full use of the dissipation generated by the background…

偏微分方程分析 · 数学 2024-03-13 Suhua Lai , Jiahong Wu , Jianwen Zhang , Xiaokui Zhao

We prove the non-uniqueness of weak solutions to 3D magnetohydrodynamic (MHD for short) equations. The constructed weak solutions do not conserve the magnetic helicity and can be close to any given smooth, divergence-free and mean-free…

偏微分方程分析 · 数学 2022-02-16 Yachun Li , Zirong Zeng , Deng Zhang

In this paper, we consider the Cauchy problem of the two-dimensional regularized incompressible magnetohydrodynamics equations. The main objective of this paper is to establish the global regularity of classical solutions of the…

偏微分方程分析 · 数学 2019-09-09 Zhuan Ye

This paper investigates the non-resistive compressible magnetohydrodynamic (MHD) equations in $\mathbb{R}^2$. We establish the global existence and stability of classical solutions for initial data sufficiently close to a constant…

偏微分方程分析 · 数学 2026-05-22 Yi Zhu

In this paper, we investigate the Cauchy problem of the compressible non-resistive MHD on $\mathbb{R}^2$ with vacuum as far field density. We prove that the 2D Cauchy problem has a unique local strong solution provided the initial density…

偏微分方程分析 · 数学 2018-01-03 Mingtao Chen , Aibin Zang

This paper concerns the Cauchy problem of the non-baratropic non-resistive magnetohydrodynamic (MHD) equations with zero heat conduction on the whole two-dimensional (2D) space with vacuum as far field density. By delicate weighted energy…

偏微分方程分析 · 数学 2018-01-24 Xin Zhong

In this paper, we study the global existence of classical solutions to the three dimensional incompressible viscous magneto-hydrodynamical system without magnetic diffusion on periodic boxes, i.e., with periodic boundary conditions. We work…

偏微分方程分析 · 数学 2018-03-06 Ronghua Pan , Yi Zhou , Yi Zhu

In this paper, the existence of finite-time splash singularity is proved for the free-boundary problem of the viscous and non-resistive incompressible magnetohydrodynamic (MHD) equations in $ \mathbb{R}^{3}$, based on a construction of a…

偏微分方程分析 · 数学 2023-09-19 Guangyi Hong , Tao Luo , Zhonghao Zhao

We prove the non-uniqueness of weak solutions with non-trivial magnetic fields to the 3D Hall-MHD equations on the plane in the space $C^0_t L_x^2$ through the convex integration scheme and by constructing new errors and new intermittent…

偏微分方程分析 · 数学 2025-08-18 Yi Peng , Huaqiao Wang , Chenlu Zhang

In this paper we show that the solutions to the incompressible Hall-MHD system with fractional magnetic diffusion depend continuously on the initial data in $H^s(\mathbb{R}^d)$, $s>1+\frac{d}{2}$.

偏微分方程分析 · 数学 2018-03-28 Dingxing Zhong , Jinlu Li , Xing Wu

Newcomb's Lagrangian for ideal magnetohydrodynamics (MHD) in Lagrangian labeling is discretized using discrete exterior calculus. Variational integrators for ideal MHD are derived thereafter. Besides being symplectic and…

等离子体物理 · 物理学 2014-10-27 Yao Zhou , Hong Qin , J. W. Burby , A. Bhattacharjee

In this paper, we investigate the characteristic structure of the full equations of magnetohydrodynamics (MHD) and show that it satisfies the hypotheses of a general variable-multiplicity stability frame- work introduced by Metivier and…

偏微分方程分析 · 数学 2008-07-03 Bongsuk Kwon

Single fluid magnetohydrodynamic (MHD) equations have been studied through direct numerical simulations (DNS) using pseudo-spectral methods in two as well as three spatial dimensions. At Alfv\'en resonance, a reversible periodic exchange of…

等离子体物理 · 物理学 2019-06-24 Rupak Mukherjee , Rajaraman Ganesh , Abhijit Sen

This paper is concerned with the Cauchy problem of the multi-dimensional incompressible magnetohydrodynamic equations with inhomogeneous density and fractional dissipation. It is shown that when $\alpha+\beta=1+\frac{n}{2}$ satisfying…

偏微分方程分析 · 数学 2021-07-09 Baoquan Yuan , Xueli Ke

In this paper, we exhibit non-uniqueness of Leray weak solutions of the forced magnetohydrodynamic (MHD for short) equations. Similar to the solutions constructed in \cite{ABC2}, we first find a special steady solution of ideal MHD…

偏微分方程分析 · 数学 2024-07-10 Jun Wang , Fei Xu , Yong Zhang

We show that ideal 2D MHD does not possess weak solutions (or even subsolutions) with compact support in time and non-trivial magnetic field. We also show that the $\Lambda$-convex hull of ideal MHD has empty interior in both 2D and 3D;…

偏微分方程分析 · 数学 2018-01-23 Daniel Faraco , Sauli Lindberg

We consider the electron magnetohydrodynamics (MHD) equation on the 3D torus $\mathbb T^3$. For a given smooth vector field $H$ with zero mean and zero divergence, we can construct a weak solution $B$ to the electron MHD in the space…

偏微分方程分析 · 数学 2024-05-24 Mimi Dai

We study the singularity formation of strong solutions to the two-dimensional (2D) Cauchy problem of the non-baratropic compressible magnetohydrodynamic equations without heat conductivity. It is proved that the strong solution exists…

偏微分方程分析 · 数学 2018-09-05 Xin Zhong