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We investigate the Couette-Taylor problem for a steady incompressible viscous fluid in a 3D cylindrical annulus, where one of the two cylinders is still, under both Dirichlet and boundary conditions involving the vorticity that naturally…

偏微分方程分析 · 数学 2026-03-06 Edoardo Bocchi , Filippo Gazzola , Antonio Hidalgo-Torné

The stability of shear flows of electrically conducting fluids, with respect to finite amplitude three-dimensional localized disturbances is considered. The time evolution of the fluid impulse integral, characterizing such disturbances, for…

流体动力学 · 物理学 2016-09-08 V. Levinski , I. Rapoport , J. Cohen

We consider the 2D Euler equation of incompressible fluids on a strip and prove the stability of the rectangular stationary state.

偏微分方程分析 · 数学 2016-11-08 J. Beichman , S. Denisov

This paper investigates solitary water waves propagating along the surface of a two-dimensional dielectric fluid with constant vorticity in the presence of an external electric field. We formulate the system as a nonlinear free boundary…

偏微分方程分析 · 数学 2026-04-28 Tingting Feng , Yong Zhang , Zhitao Zhang

We investigate the stabilizing effects of the magnetic fields in the linearized magnetic Rayleigh-Taylor (RT) problem of a nonhomogeneous incompressible viscous magnetohydrodynamic fluid of zero resistivity in the presence of a uniform…

数学物理 · 物理学 2015-10-28 Fei Jiang , Song Jiang

We study the free boundary problem for a contact discontinuity for the system of relativistic magnetohydrodynamics. A surface of contact discontinuity is a characteristic of this system with no flow across the discontinuity for which the…

偏微分方程分析 · 数学 2020-01-14 Yuri Trakhinin

We prove the local-in-time existence of solutions with a contact discontinuity of the equations of ideal compressible magnetohydrodynamics (MHD) for 2D planar flows provided that the Rayleigh-Taylor sign condition $[\partial p/\partial…

偏微分方程分析 · 数学 2018-01-17 Alessandro Morando , Yuri Trakhinin , Paola Trebeschi

This paper is concerned with nonlinear stability of viscous contact discontinuity to inflow problem for the one-dimensional full compressible Navier-Stokes equations with different ends in half space $[0,\infty)$. For the case when the…

偏微分方程分析 · 数学 2014-09-22 Tingting Zheng

A variational model for describing the morphology of two-phase continua by allowing for the interplay between coherent and incoherent interfaces is introduced. Coherent interfaces are characterized by the microscopical arrangement of atoms…

偏微分方程分析 · 数学 2023-10-24 Randy Llerena , Paolo Piovano

The aim of these notes is to present in a comprehensive and relatively self-contained way some recent developments in the mathematical analysis of two-dimensional viscous flows. We consider the incompressible Navier-Stokes equations in the…

偏微分方程分析 · 数学 2012-03-06 Thierry Gallay

Hall-MHD is a mixed hyperbolic-parabolic partial differential equation that describes the dynamics of an ideal two fluid plasma with massless electrons. We study the only shock wave family that exists in this system (the other…

等离子体物理 · 物理学 2015-06-17 George I. Hagstrom , Eliezer Hameiri

The two-phase free boundary problem with surface tension and downforce gravity for the Navier-Stokes system is considered in a situation where the initial interface is close to equilibrium. The boundary symbol of this problem admits zeros…

偏微分方程分析 · 数学 2016-12-20 Jan Pruess , Gieri Simonett

We study discrete vortices in the anti-continuum limit of the discrete two-dimensional nonlinear Schr{\"o}dinger (NLS) equations. The discrete vortices in the anti-continuum limit represent a finite set of excited nodes on a closed discrete…

斑图形成与孤子 · 物理学 2007-05-23 D. E. Pelinovsky , P. G. Kevrekidis , D. J. Frantzeskakis

The vortex lattice is an ideal system to study the competition and interplay between interaction and disorder. New results on 2H-NbSe_2 (in samples of progressively increasing pinning) elucidate how pinning alters the phase boundary…

超导电性 · 物理学 2008-02-03 S. S. Banerjee

The motion of a two-dimensional buoyant vortex patch, i.e. a vortex patch with a uniform density different from the uniform density of the surrounding fluid, is analyzed in terms of evolution equations for the motion of its centroid,…

流体动力学 · 物理学 2022-06-07 Banavara N. Shashikanth , Rangachari Kidambi

Implosive formation of current sheets is a fundamental plasma process. Previous studies focused on the early time evolution, while here our primary aim is to explore the longer-term evolution, which may be critical for determining the…

等离子体物理 · 物理学 2018-07-12 J. O. Thurgood , D. I. Pontin , J. A. McLaughlin

For a two-dimensional steady supersonic Euler flow past a convex cornered wall with right angle, a characteristic discontinuity (vortex sheet and/or entropy wave) is generated, which separates the supersonic flow from the gas at rest (hence…

偏微分方程分析 · 数学 2015-06-11 Gui-Qiang G. Chen , Vaibhav Kukreja , Hairong Yuan

A new kind of magnetohydrodynamic instability and waves are analyzed for a current sheet in the presence of a small normal magnetic field component varying along the sheet. These waves and instability are related to existence of two…

空间物理 · 物理学 2009-11-13 N. V. Erkaev , V. S. Semenov , H. K. Biernat

This paper is concerned with Dirichlet problem $u(0,t)=0$, $\theta(0,t)=\theta_-$ for one-dimensional full compressible Navier-Stokes equations in the half space $\R_+=(0,+\infty)$. Because the boundary decay rate is hard to control,…

偏微分方程分析 · 数学 2016-09-09 Tingting Zheng , Yurui Lin

This paper investigates the well-posedness and Rayleigh-Taylor (R-T) instability for a system of two-dimensional nonhomogeneous incompressible fluid, subject to the non-slip and Naiver-slip boundary conditions at the outer and inner…

偏微分方程分析 · 数学 2025-02-11 Liang Li , Quan Wang