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In this paper, we are concerned with the vanishing viscosity problem for the three-dimensional Navier-Stokes equations with helical symmetry, in the whole space. We choose viscosity-dependent initial $\bu_0^\nu$ with helical swirl, an…

偏微分方程分析 · 数学 2018-08-01 Quansen Jiu , Milton C. Lopes Filho , Dongjuan Niu , Helena J. Nussenzveig Lopes

We show strong convergence of the vorticities in the vanishing viscosity limit for the incompressible Navier-Stokes equations on the two-dimensional torus, assuming only that the initial vorticity of the limiting Euler equations is in $L^p$…

偏微分方程分析 · 数学 2021-07-07 Helena J. Nussenzveig Lopes , Christian Seis , Emil Wiedemann

In this paper, we prove that the 1D Cauchy problem of the compressible Navier-Stokes equations admits a unique global classical solution $(\rho,\rm u)$ if the viscosity $\mu(\rho)=1+\rho^{\beta}$ with $\beta\geq0$. The initial data can be…

偏微分方程分析 · 数学 2013-10-22 Quansen Jiu , Mingjie Li , Yulin Ye

In the recent paper, the global-in-time inviscid limit of the three-dimensional (3D) isentropic compressible Navier-Stokes equations is considered. First, when viscosity coefficients are given as a constant multiple of density's power…

偏微分方程分析 · 数学 2019-11-21 Yongcai Geng , Yachun Li , Shengguo Zhu

The 3D-primitive equations with only horizontal viscosity are considered on a cylindrical domain $\Omega=(-h,h) \times G$, $G\subset \mathbb{R}^2$ smooth, with the physical Dirichlet boundary conditions on the sides. Instead of considering…

偏微分方程分析 · 数学 2021-03-29 Amru Hussein , Martin Saal , Marc Wrona

In this paper, we consider the initial-boundary value problem of the viscous 3D primitive equations for oceanic and atmospheric dynamics with only vertical diffusion in the temperature equation. Local and global well-posedness of strong…

偏微分方程分析 · 数学 2015-06-18 Chongsheng Cao , Jinkai Li , Edriss S. Titi

In this paper, we first obtain the temporal decay estimates for weak solutions to the three dimensional generalized Navier-Stokes equations. Then, with these estimates at disposal, we obtain the temporal decay estimates for higher order…

偏微分方程分析 · 数学 2014-06-10 Quansen Jiu , Huan Yu

Fractional Navier-Stokes equations -- featuring a fractional Laplacian -- provide a `bridge' between the Euler equations (zero diffusion) and the Navier-Stokes equations (full diffusion). The problem of whether an initially smooth flow can…

偏微分方程分析 · 数学 2020-01-15 Jiayi Wang

We consider the Navier-Stokes equations in a three-dimensional curved thin domain around a given closed surface under Navier's slip boundary conditions. When the thickness of the thin domain is sufficiently small, we establish the global…

偏微分方程分析 · 数学 2020-12-30 Tatsu-Hiko Miura

Here we prove the existence of global in time regular solutions to the two-dimensional compressible Navier-Stokes equations supplemented with arbitrary large initial velocity $v\_0$ and almost constantdensity $\varrho\_0$, for large volume…

偏微分方程分析 · 数学 2016-03-24 Raphaël Danchin , Piotr B. Mucha

We are concerned with the inviscid limit of the Navier-Stokes equations to the Euler equations for barotropic compressible fluids in $\mathbb{R}^3$. When the viscosity coefficients obey a lower power-law of the density (i.e., $\rho^\delta$…

偏微分方程分析 · 数学 2021-12-21 Geng Chen , Gui-Qiang G. Chen , Shengguo Zhu

We consider the one-dimensional Cauchy problem for the Navier-Stokes equations with degenerate viscosity coefficient in highly compressible regime. It corresponds to the compressible Navier-Stokes system with large Mach number equal to…

偏微分方程分析 · 数学 2015-12-03 Boris Haspot , Ewelina Zatorska

In this paper we modified the Navier-Stokes equations by adding a higher order artificial viscosity term to the conventional system. We first show that the solution of the regularized system converges strongly to the solution of the…

偏微分方程分析 · 数学 2010-12-30 Abdelhafid Younsi

The purpose of this paper is to derive rigorously the so called viscous shallow water equations given for instance page 958-959 in [A. Oron, S.H. Davis, S.G. Bankoff, Rev. Mod. Phys, 69 (1997), 931?980]. Such a system of equations is…

偏微分方程分析 · 数学 2016-11-27 Didier Bresch , Pascal Noble

We consider the compressible Navier-Stokes equation with density dependent viscosity coefficients, focusing on the case where those coefficients vanish on vacuum. We prove the stability of weak solutions both in the torus and in the whole…

偏微分方程分析 · 数学 2007-05-23 Antoine Mellet , Alexis F. Vasseur

This paper is concerned with a 2D channel flow that is periodic horizontally but bounded above and below by hard walls. We assume the presence of horizontal viscosity only. We study the well-posedness, large-time behavior, and stability of…

偏微分方程分析 · 数学 2025-07-04 Chongsheng Cao , Yanqiu Guo

In this paper, we investigate the global well-posedness of three-dimensional Navier-Stokes equations with horizontal viscosity under a special symmetric structure: helical symmetry. More precisely, by a revised Ladyzhenskaya-type inequality…

偏微分方程分析 · 数学 2017-06-28 Jitao Liu , Dongjuan Niu

This paper investigates the Cauchy problem for the barotropic compressible Navier-Stokes equations in $\mathbb{R}^2$ with the constant state as far field, which may be vacuum or non-vacuum. Under the assumption of a sufficiently large bulk…

偏微分方程分析 · 数学 2026-01-27 Qinghao Lei , Chengfeng Xiong

In this paper, we will prove a new result that guarantees the global existence of solutions to the Navier--Stokes equation in three dimensions when the initial data is sufficiently close to being two dimensional. This result interpolates…

偏微分方程分析 · 数学 2020-09-07 Evan Miller

In this article, we consider a special class of initial data to the 3D Navier-Stokes equations on the torus, in which there is a certain degree of orthogonality in the components of the initial data. We showed that, under such conditions,…

偏微分方程分析 · 数学 2013-10-29 Percy Wong