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In this paper, we prove in two dimensions global identifiability of the viscosity in an incompressible fluid by making boundary measurements. The main contribution of this work is to use more natural boundary measurements, the Cauchy…

偏微分方程分析 · 数学 2015-06-18 Ru-Yu Lai , Gunther Uhlmann , Jenn-Nan Wang

We study the boundary value problem for the stationary Navier--Stokes system in two dimensional exterior domain. We prove that any solution of this problem with finite Dirichlet integral is uniformly bounded. Also we prove the existence…

偏微分方程分析 · 数学 2017-11-08 Mikhail V. Korobkov , Konstantinas Pileckas , Remigio Russo

Mixed boundary value problems for the Navier-Stokes system in a polyhedral domain are considered. Different boundary conditions (in particular, Dirichlet, Neumann, slip conditions) are prescribed on the faces of a polyhedron. The authors…

数学物理 · 物理学 2007-05-23 V. G. Maz'ya , J. Rossmann

We study a mixed initial-boundary value problem for the Navier-Stokes equations, where the Dirichlet, Neumann and slip boundary conditions are prescribed on the faces of a three-dimensional polyhedral domain. We prove the existence,…

偏微分方程分析 · 数学 2011-02-15 Michal Benes

We consider the 2D incompressible Navier-Stokes equations with Dirichlet boundary condition in the exterior of one obstacle. Assuming that the circulation at infinity of the velocity is sufficiently small, we prove that the large time…

偏微分方程分析 · 数学 2011-07-12 Dragoş Iftimie , Grzegorz Karch , Christophe Lacave

We study the zero-viscosity limit of free boundary Navier-Stokes equations with surface tension in $\mathbb{R}^3$ thus extending the work of Masmoudi and Rousset [1] to take surface tension into account. Due to the presence of boundary…

偏微分方程分析 · 数学 2017-10-09 Tarek Elgindi , Donghyun Lee

We study the initial-boundary value problem of the Navier-Stokes equations for incompressible fluids in a general domain in $\R^n$ with compact and smooth boundary, subject to the kinematic and vorticity boundary conditions on the non-flat…

偏微分方程分析 · 数学 2009-01-05 Gui-Qiang Chen , Dan Osborne , Zhongmin Qian

In this paper we are concerned with the initial boundary value problem of the 2, 3-D Navier-Stokes equations with mixed boundary conditions including conditions for velocity, static pressure, stress, rotation and Navier slip condition…

偏微分方程分析 · 数学 2016-11-28 Tujin Kim , Daomin Cao

This paper exposes how to obtain a relation that have to be hold for all free--divergence velocity fields that evolve according to Navier--Stokes equations. However, checking the violation of this relation requires a huge computational…

流体动力学 · 物理学 2019-08-06 Manuel García-Casado

We consider the convergence in the $L^2$ norm, uniformly in time, of the Navier-Stokes equations with Dirichlet boundary conditions to the Euler equations with slip boundary conditions. We prove that if the Oleinik conditions of no…

偏微分方程分析 · 数学 2014-04-01 Peter Constantin , Igor Kukavica , Vlad Vicol

We consider the incompressible Navier-Stokes equations with the Dirichlet boundary condition in an exterior domain of $\mathbb{R}^n$ with $n\geq2$. We compare the long-time behaviour of solutions to this initial-boundary value problem with…

偏微分方程分析 · 数学 2017-05-17 Dragos Iftimie , Grzegorz Karch , Christophe Lacave

We present results on the trace regularity of the stress vector on the boundary of an elastic solid satisfying the time-dependent, displacement-traction problem for the Navier equations of linear elasticity in a bounded domain of…

偏微分方程分析 · 数学 2026-01-08 Jerin Tasnim Farin , Giusy Mazzone

The energy equalities of compressible Navier-Stokes equations with general pressure law and degenerate viscosities are studied. By using a unified approach, we give sufficient conditions on the regularity of weak solutions for these…

偏微分方程分析 · 数学 2020-01-08 Quoc-Hung Nguyen , Phuoc-Tai Nguyen , Quoc Bao Tang

We review the first and second boundary value problems for the Stokes system posed in a bounded Lipschitz domain in $\mathbb{R}^n.$ Particular attention is given to the mixed boundary condition: a Dirichlet condition is imposed for the…

偏微分方程分析 · 数学 2018-03-06 John Fabricius

We generalize pressure boundary conditions of an $\varepsilon$-Stokes problem. Our $\varepsilon$-Stokes problem connects the classical Stokes problem and the corresponding pressure-Poisson equation using one parameter $\varepsilon>0$. For…

偏微分方程分析 · 数学 2018-12-27 Masato Kimura , Kazunori Matsui , Adrian Muntean , Hirofumi Notsu

We consider an inverse boundary value problem for the doubly nonlinear parabolic equation \[ \epsilon(x)\partial_t u^m-\nabla\cdot\bigl(\gamma(x)|\nabla u|^{p-2}\nabla u\bigr)=0 \quad\text{in }(0,T)\times\Omega, \] where…

偏微分方程分析 · 数学 2026-03-10 Cătălin I. Cârstea , Tuhin Ghosh

In this paper, we study the initial-boundary value problem of the Navier-Stokes system in the half space. We prove the unique solvability of the weak solution on some short time interval (0, T) with the velocity in $C^{\alpha, \frac12…

偏微分方程分析 · 数学 2014-11-27 Tongkeun Chang , Bum Ja Jin

We consider inverse boundary value problems for the Navier-Stokes equations and the isotropic Lam\'e system in two dimensions. The uniqueness without any smallness assumptions on unknown coefficients, which is called global uniqueness, was…

偏微分方程分析 · 数学 2013-09-09 O. Yu. Imanuvilov , M. Yamamoto

We study the stationary nonhomogeneous Navier--Stokes problem in a two dimensional symmetric domain with a semi-infinite outlet (for instance, either parabo-\\loidal or channel-like). Under the symmetry assumptions on the domain, boundary…

偏微分方程分析 · 数学 2015-05-28 M. Chipot , K. Kaulakyt , K. Pileckas , W. Xue

We establish several boundary $\varepsilon$-regularity criteria for suitable weak solutions for the 3D incompressible Navier-Stokes equations in a half cylinder with the Dirichlet boundary condition on the flat boundary. Our proofs are…

偏微分方程分析 · 数学 2018-12-27 Hongjie Dong , Kunrui Wang
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