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We show that in bounded domains with no-slip boundary conditions, the Navier-Stokes pressure can be determined in a such way that it is strictly dominated by viscosity. As a consequence, in a general domain we can treat the Navier-Stokes…

偏微分方程分析 · 数学 2007-05-23 Jian-Guo Liu , Jie Liu , Robert L. Pego

The nonhomogeneous Navier-Stokes equations with density-dependent viscosity is studied in three-dimensional (3D) exterior domains with nonslip or slip boundary conditions. We prove that the strong solutions exists globally in time provided…

偏微分方程分析 · 数学 2022-05-13 Guocai Cai , Boqiang Lü , Yi Peng

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

Here, the perturbation equation for a dissipative medium is derived from the first principle from the linearized compressible Navier-Stokes equation without Stokes's hypothesis. The dispersion relations of this generic governing equation…

流体动力学 · 物理学 2023-03-28 Tapan K. Sengupta , Shivam K. Jha , Aditi Sengupta , Bhavna Joshi , Prasannabalaji Sundaram

We show the existence of (a class of) weak solutions to the three-dimensional stationary incompressible inhomogeneous Navier--Stokes equations with density-dependent viscosity coefficient in the axially symmetric case. Further symmetric…

偏微分方程分析 · 数学 2025-01-08 Zihui He

Here we prove the all-time propagation of the Sobolev regularity for the velocity field solution of the two-dimensional compressible Navier-Stokes equations, provided the volume (bulk) viscosity coefficient is large enough. The initial…

偏微分方程分析 · 数学 2021-03-03 Raphaël Danchin , Piotr Boguslaw Mucha

This paper is dedicated to the construction of a pseudo-norm, for which small shock profiles of the barotropic Navier-Stokes equation have a contraction property. This contraction property holds in the class of any large 1D weak solutions…

偏微分方程分析 · 数学 2019-01-14 Moon-Jin Kang , Alexis Vasseur

The three-dimensional, homogeneous, incompressible Navier-Stokes equations are studied in the absence of viscosity in one direction. It is shown that there are arbitrarily large initial data generating a unique global solution, the main…

偏微分方程分析 · 数学 2022-02-24 Isabelle Gallagher , Alexandre Yotopoulos

We note that the equations of relativistic hydrodynamics reduce to the incompressible Navier-Stokes equations in a particular scaling limit. In this limit boundary metric fluctuations of the underlying relativistic system turn into a…

高能物理 - 理论 · 物理学 2009-08-24 Sayantani Bhattacharyya , Shiraz Minwalla , Spenta R. Wadia

We consider the stability of the steady state of the compressible Navier-Stokes-Poisson equations with the non-flat doping profile. We prove the global existence of classical solutions near the steady state for the large doping profile. For…

偏微分方程分析 · 数学 2015-06-09 Zhong Tan , Yanjin Wang , Yong Wang

We establish that solitary stationary waves in three dimensional viscous incompressible fluids are a generic phenomenon and that every such solution is a vanishing wave-speed limit along a one parameter family of traveling waves. The…

偏微分方程分析 · 数学 2023-09-13 Noah Stevenson , Ian Tice

The incompressible Navier-Stokes equations are re-formulated to involve an arbitrary time dilation; and in this manner, the modified Navier-Stokes equations are obtained which have some penalization terms in the right hand side. Then, the…

流体动力学 · 物理学 2014-12-17 Fereidoun Sabetghadam

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

We approximate a two--phase model by the compressible Navier-Stokes equations with a singular pressure term. Up to a subsequence, these solutions are shown to converge to a global weak solution of the compressible system with the congestion…

偏微分方程分析 · 数学 2014-10-03 Charlotte Perrin , Ewelina Zatorska

We study the motion of the steady compressible heat conducting viscous fluid in a bounded three dimensional domain governed by the compressible Navier-Stokes-Fourier system. Our main result is the existence of a weak solution to these…

偏微分方程分析 · 数学 2007-09-24 Piotr B. Mucha , Milan Pokorny

The Navier-Stokes systems for compressible fluids with density-dependent viscosities are considered in the present paper. These equations, in particular, include the ones which are rigorously derived recently as the Saint-Venant system for…

偏微分方程分析 · 数学 2008-11-26 Hai-Liang Li , Jing Li , Zhouping Xin

The existence of singular solutions of the incompressible Navier-Stokes system with singular external forces, the existence of regular solutions for more regular forces as well as the asymptotic stability of small solutions (including…

偏微分方程分析 · 数学 2007-05-23 Marco Cannone , Grzegorz Karch

The existence and dynamical role of particular unstable Navier-Stokes solutions (exact coherent structures) is revealed in laboratory studies of weak turbulence in a thin, electromagnetically-driven fluid layer. We find that the dynamics…

混沌动力学 · 物理学 2018-08-01 Balachandra Suri , Jeffrey Tithof , Roman O. Grigoriev , Michael F. Schatz

In this paper, both structural and dynamical stabilities of steady transonic shock solutions for one-dimensional Euler-Poission system are investigated. First, a steady transonic shock solution with supersonic backgroumd charge is shown to…

偏微分方程分析 · 数学 2015-05-19 Tao Luo , Jeffrey Rauch , Chunjing Xie , Zhouping Xin

We consider the incompressible and stationary Stokes equations on an infinite two-dimensional wedge with non-scaling invariant Navier-slip boundary conditions. We prove well-posedness and higher regularity of the Stokes problem in a certain…

偏微分方程分析 · 数学 2024-07-23 Marco Bravin , Manuel V. Gnann , Hans Knüpfer , Nader Masmoudi , Floris B. Roodenburg , Jonas Sauer