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We introduce a new hybridized discontinuous Galerkin method for the incompressible magnetohydrodynamics equations. If particular velocity, pressure, magnetic field, and magnetic pressure spaces are employed for both element and trace…

数值分析 · 数学 2022-01-07 Thad A. Gleason , Eric L. Peters , John A. Evans

We consider evolution (non-stationary) space-periodic solutions to the $n$-dimensional non-linear Navier-Stokes equations of anisotropic fluids with the viscosity coefficient tensor variable in space and time and satisfying the relaxed…

偏微分方程分析 · 数学 2024-02-09 Sergey E. Mikhailov

We consider evolution (non-stationary) space-periodic solutions to the $n$-dimensional non-linear Navier-Stokes equations of anisotropic fluids with the viscosity coefficient tensor variable in space and time and satisfying the relaxed…

偏微分方程分析 · 数学 2024-07-09 Sergey E. Mikhailov

First, the solution uniqueness, existence and regularity for stationary anisotropic (linear) Stokes and generalised Oseen systems with constant viscosity coefficients in a compressible framework are analysed in a range of periodic Sobolev…

偏微分方程分析 · 数学 2023-05-24 Sergey E. Mikhailov

Strong solutions of the non-stationary Navier-Stokes equations under non-linearized slip or leak boundary conditions are investigated. We show that the problems are formulated by a variational inequality of parabolic type, to which…

偏微分方程分析 · 数学 2012-01-24 Takahito Kashiwabara

We prove a sufficient conditions of local regularity of suitable weak solutions to the MHD system for the point from $C^3$-smooth part of the boundary. Our conditions are the generalizing of the Caffarelli--Kohn--Nirenberg theorem for…

偏微分方程分析 · 数学 2012-11-20 Viktor Vyalov

A hybrid method for the incompressible Navier--Stokes equations is presented. The method inherits the attractive stabilizing mechanism of upwinded discontinuous Galerkin methods when momentum advection becomes significant, equal-order…

计算工程、金融与科学 · 计算机科学 2012-11-19 Robert Jan Labeur , Garth N. Wells

In this paper, we consider the steady MHD equations with inhomogeneous boundary conditions for the velocity and the tangential component of the magnetic field. Using a new construction of the magnetic lifting, we obtain existence of weak…

偏微分方程分析 · 数学 2020-12-30 Zhibing Zhang , Chunyi Zhao

Existence of local-in-time unique solution and loss of smoothness of full Magnet-Hydro-Dynamics system (MHD) is considered for periodic initial data. The result is proven using Fujita-Kato's method in $\ell^1$ based (for the Fourier…

偏微分方程分析 · 数学 2011-09-29 Slim Ibrahim , Tsuyoshi Yoneda

We are concerned on the possibility of finite time singularity in a partially viscous magnetohydrodynamic equations in $\Bbb R^n$, $n=2,3$, namely the MHD with positive viscosity and zero resistivity. In the special case of zero magnetic…

偏微分方程分析 · 数学 2007-05-23 Dongho Chae

The first paper of this series presents a discretely entropy stable discontinuous Galerkin (DG) method for the resistive magnetohydrodynamics (MHD) equations on three-dimensional curvilinear unstructured hexahedral meshes. Compared to other…

We present a finite element method for the incompressible Navier--Stokes problem that is locally conservative, energy-stable and pressure-robust on time-dependent domains. To achieve this, the space--time formulation of the Navier--Stokes…

数值分析 · 数学 2023-07-06 Tamas L. Horvath , Sander Rhebergen

We prove the unique existence of solutions of the 3D incompressible Navier-Stokes equations in an exterior domain with small non-decaying boundary data, for $t \in R$ or $t \in (0,\infty)$. In the latter case it is coupled with small…

偏微分方程分析 · 数学 2011-05-03 Kyungkuen Kang , Hideyuki Miura , Tai-Peng Tsai

In this paper, we propose a unified numerical framework for the time-dependent incompressible Navier--Stokes equation which yields the $H^1$-, $H(\text{div})$-conforming, and discontinuous Galerkin methods with the use of different viscous…

数值分析 · 数学 2020-11-16 Xi Chen , Yuwen Li , Corina Drapaca , John Cimbala

In this article, we study the stability and large time behavior for an multi-dimensional incompressible magnetohydrodynamical system with a velocity damping term, for small perturbations near a steady-state of magnetic field fulfilling the…

偏微分方程分析 · 数学 2025-12-30 Hui Fang , Pingping Gui , Yanping Zhou

Existence, uniqueness, and regularity of time-periodic solutions to the Navier-Stokes equations in the three-dimensional whole-space are investigated. We consider the Navier-Stokes equations with a non-zero drift term corresponding to the…

偏微分方程分析 · 数学 2015-06-17 Mads Kyed

We study the global stability of large solutions to the compressible isentropic magnetohydrodynamic equations in a three-dimensional (3D) bounded domain with Navier-slip boundary conditions. It is shown that the solutions converge to an…

偏微分方程分析 · 数学 2025-10-17 Yang Liu , Guochun Wu , Xin Zhong

We study the global well-posedness of magnetohydrodynamic (MHD) equations. The hydrodynamic system consists of the Navier-Stokes equations for the fluid velocity coupled with a reduced from of the Maxwell equations for the magnetic field.…

偏微分方程分析 · 数学 2019-08-09 Chengfei Ai , Zhong Tan , Jianfeng Zhou

In this paper, we consider numerical approximations for solving the nonlinear magneto-hydrodynamical system, that couples the Navier-Stokes equations and Maxwell equations together. A challenging issue to solve this model numerically is…

数值分析 · 数学 2017-11-28 Guodong Zhang , Xiaoming He , Xiaofeng Yang

We study existence and stability of steady solutions of the isentropic compressible Navier-Stokes equations on a finite interval with non characteristic boundary conditions, for general not necessarily small-amplitude data. We show that…

偏微分方程分析 · 数学 2019-01-08 Benjamin Melinand , Kevin Zumbrun
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