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This paper studies the global existence of classical solutions to the two-dimensional incompressible magneto-hydrodynamical (MHD) system with only magnetic diffusion on the periodic domain. The approach is based on a time-weighted energy…

偏微分方程分析 · 数学 2018-08-29 Yi Zhou , Yi Zhu

We show existence of global strong solutions with large initial data on the irrotational part for the shallow-water system in dimension $N\geq 2$. We introduce a new notion of \textit{quasi-solutions} when the initial velocity is assumed to…

偏微分方程分析 · 数学 2012-01-27 Boris Haspot

We consider the flow of a Newtonian fluid in a three-dimensional domain, rotating about a vertical axis and driven by a vertically invariant horizontal body-force. This system admits vertically invariant solutions that satisfy the 2D…

流体动力学 · 物理学 2023-07-19 Basile Gallet

Two-phase flow of two Newtonian incompressible viscous fluids with a soluble surfactant and different densities of the fluids can be modeled within the diffuse interface approach. We consider a Navier-Stokes/Cahn-Hilliard type system…

偏微分方程分析 · 数学 2017-10-10 Helmut Abels , Harald Garcke , Josef Weber

We consider the Dirichlet problem for a compressible two-fluid model in three dimensions, and obtain the global existence of weak solution with large initial data and independent adiabatic constants \Gamma,\gamma>=9/5. The pressure…

偏微分方程分析 · 数学 2021-07-27 Huanyao Wen

In this paper we study the equations governing the unsteady motion of an incompressible homogeneous generalized second grade fluid subject to periodic boundary conditions. We establish the existence of global-in-time strong solutions for…

偏微分方程分析 · 数学 2014-04-18 Hafedh Bousbih , Mohamed Majdoub

In this paper, we prove the global existence of weak solutions to the non-isothermal nematic liquid crystal system on $\mathbb T^2$, based on a new approximate system which is different from the classical Ginzburg-Landau approximation.…

偏微分方程分析 · 数学 2013-10-29 Jinkai Li , Zhouping Xin

In this paper, we consider the advective unstable Cahn-Hilliard equation in 2D with shear flow: \begin{equation*} \begin{cases} u_t+Av_1(y) \partial_x u+\varepsilon \Delta^2 u= \Delta(a u^3+ b u^2) \quad & \quad \textrm{on} \quad \mathbb…

偏微分方程分析 · 数学 2026-01-30 Bingyang Hu , Dinghua Xu , Yeyu Zhang

In this paper we deal with the exterior problem for a system of nonlinear wave equations in two space dimensions, assuming that the initial data is small and smooth. We establish the same type of lower bound of the lifespan for the problem…

数学物理 · 物理学 2012-05-29 Hideo Kubo

In this paper, we consider the Cauchy problem for semi-linear wave equations with structural damping term $\nu (-\Delta)^2 u_t$, where $\nu >0$ is a constant. As being mentioned in [8,10], the linear principal part brings both the diffusion…

偏微分方程分析 · 数学 2021-02-11 Tuan Anh Dao , Hiroshi Takeda

We study the long-time behavior of an elliptic rigid body which is allowed to vertically translate and rotate in a 2D unbounded channel under the action of a Poiseuille flow at large distances. The motion of the fluid is modelled by the…

偏微分方程分析 · 数学 2024-06-04 Denis Bonheure , Matthieu Hillairet , Clara Patriarca , Gianmarco Sperone

In this paper the two-dimensional Benney system describing long wave propagation of a finite depth fluid motion and the multi-dimensional Russo--Smereka kinetic equation describing a bubbly flow are considered. The Hamiltonian approach…

可精确求解与可积系统 · 物理学 2015-06-19 Maxim V. Pavlov

We consider the Cauchy problems of a non-strictly hyperbolic system which describes the compressible Euler fluid with exothermic reaction. In this paper a Lyapunov-type functional is constructed for balance laws. By analysis of the flow…

动力系统 · 数学 2018-01-30 Kai Hu

We consider dissipative relativistic fluid theories on a fixed flat, compact, globally hyperbolic, Lorentzian manifold. We prove that for all initial data in a small enough neighborhood of the equilibrium states (in an appropriate Sobolev…

广义相对论与量子宇宙学 · 物理学 2009-10-30 Heinz Otto Kreiss , Gabriel B. Nagy , Omar E. Ortiz , Oscar A. Reula

We study a two fluid system which models the motion of a charged fluid with Rayleigh friction, and in the presence of an electro-magnetic field satisfying Maxwell's equations. We study the well-posdness of the system in both space…

偏微分方程分析 · 数学 2017-05-15 Yoshikazu Giga , Slim Ibrahim , Shengyi Shen , Tsuyoshi Yoneda

We study the Cauchy problem of three-dimensional compressible non-isentropic magnetohydrodynamic (MHD) fluids with both interior and far field vacuum states. Applying delicate energy estimates, initial layer analysis, and continuation…

偏微分方程分析 · 数学 2024-08-23 Yang Liu , Xin Zhong

In this paper we consider the Cauchy problem for 2D viscous shallow water system in $H^s(\mathbb{R}^2)$, $s>1$. We first prove the local well-posedness of this problem by using the Littlewood-Paley theory, the Bony decomposition, and the…

偏微分方程分析 · 数学 2014-11-04 Yanan Liu , Zhaoyang Yin

In this paper we derive a two-component system of nonlinear equations which model two-dimensional shallow water waves with constant vorticity. Then we prove well-posedness of this equation using a geometrical framework which allows us to…

数学物理 · 物理学 2019-01-03 Joachim Escher , David Henry , Boris Kolev , Tony Lyons

We study a complex non-newtonian fluid that models the flow of nematic liquid crystals. The fluid is described by a system that couples a forced Navier-Stokes system with a parabolic-type system. We prove the existence of global weak…

偏微分方程分析 · 数学 2015-05-14 Marius Paicu , Arghir Zarnescu

We investigate global existence and optimal decay rates of a generic non-conservative compressible two--fluid model with general constant viscosities and capillary coefficients.The main novelty of this work is three--fold: First, for any…

偏微分方程分析 · 数学 2021-08-21 Yin Li , Huaqiao Wang , Guochun Wu , Yinghui Zhang