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This paper shows that the Stokes problem is well-posed when velocity and pressure simultaneously vanish on the domain boundary. This result is achieved by extending Ne\v{c}as' inequality to square-integrable functions that vanish in a small…

数值分析 · 数学 2025-04-24 Igor Tominec , Josefin Ahlkrona , Malte Braack

The Navier-Stokes equation contains two terms which have been subjected to slight modification: (a) the viscosity term depends of time (the viscosity in average on time is zero, but its variance is non-zero), (b) the pressure gradient…

量子物理 · 物理学 2016-08-09 Valeriy I. Sbitnev

Assuming that initial velocity and initial vorticity are bounded in the plane, we show that on a sufficiently short time interval the unique solutions of the Navier-Stokes equations converge uniformly to the unique solution of the Euler…

偏微分方程分析 · 数学 2008-08-27 Elaine Cozzi

In this paper we will prove that the vorticity belongs to L1(0; T ; L2(\Omega)) for 3D incompressible Navier-Stokes equation with periodic initial-boundary value conditions, then the existence of a global smooth solution is obtained. Our…

综合数学 · 数学 2023-01-18 Qun Lin

We study the initial-boundary value problem of the stochastic Navier--Stokes equations in the half space. We prove the existence of weak solutions in the standard Besov space valued random processes when the initial data belong to the…

偏微分方程分析 · 数学 2020-12-04 Tongkeun Chang , Minsuk Yang

We consider the motion described by the Navier-Stokes equations in a box with periodic boundary conditions. First we prove the existence of global strong two-dimensional solutions. Next we show the existence of global strong…

偏微分方程分析 · 数学 2014-06-04 Wojciech Zajączkowski , Ewa Zadrzyńska

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

The paper deals with the stochastic two-dimensional Navier-Stokes equation for incompressible fluids, set in a bounded domain with Dirichlet boundary conditions. We consider additive noise in the form $G\, dW$, where $W$ is a cylindrical…

概率论 · 数学 2025-05-13 Matteo Ferrari

A free boundary problem for the one-dimensional compressible Navier-Stokes equations is investigated. The asymptotic stability of the viscous shock wave is established under some smallness conditions. The proof is given by an elementary…

偏微分方程分析 · 数学 2009-12-25 Feimin Huang , Xiaoding Shi , Yi Wang

The main purpose of this work is to provide a Hilbertian functional framework for the analysis of the planar Navier-Stokes (NS) equations either in vorticity or in stream function formulation. The fluid is assumed to occupy a bounded…

偏微分方程分析 · 数学 2018-12-13 Julien Lequeurre , Alexandre Munnier

In this article we study a system of equations that is known to {\em extend} Navier-Stokes dynamics in a well-posed manner to velocity fields that are not necessarily divergence-free. Our aim is to contribute to an understanding of the role…

偏微分方程分析 · 数学 2015-06-04 Gautam Iyer , Robert L. Pego , Arghir Zarnescu

We consider the modified Navier-Stokes equations in R3 describing the motion of a fluid in the presence of a rotating rigid body. Weighted Sobolev spaces are used to describe the behavior of solutions at large distances. Under suitable…

偏微分方程分析 · 数学 2026-01-09 Tahar Zamène Boulmezaoud , Nabil Kerdid , Amel Kourta

We introduce a modification of the Navier-Stokes equation that has the remarkable property of possessing an infinite number of conserved quantities in the inviscid limit. This new equation is studied numerically and turbulence properties…

流体动力学 · 物理学 2015-06-05 Tobias Grafke , Rainer Grauer , Thomas C. Sideris

We consider global in time solutions of the Navier-Stokes-Fourier system describing the motion of a general compressible, viscous and heat conducting fluid far from equilibirum. Using a new concept of weak solution suitable to accommodate…

偏微分方程分析 · 数学 2021-09-03 Eduard Feireisl , Young-Sam Kwon

In this paper we deal with parabolic variational inequalities of Navier-Stokes type with time-dependent constraints on velocity fields, including gradient constraint case. One of the objectives of this paper is to propose a weak variational…

偏微分方程分析 · 数学 2018-10-15 Maria Gokieli , Nobuyuki Kenmochi , Marek Niezgódka

In this paper, we are first interested in the compressible Navier-Stokes equations with densitydependent viscosities in bounded domains with on-homogeneous Dirichlet conditions. We study the wellposedness of such models with non-constant…

偏微分方程分析 · 数学 2009-06-09 Laurent Chupin , Rémy Sart

We study the two-dimensional stationary Navier-Stokes equations describing the flows around a rotating obstacle. The unique existence of solutions and their asymptotic behavior at spatial infinity are established when the rotation speed of…

偏微分方程分析 · 数学 2018-01-17 Mitsuo Higaki , Yasunori Maekawa , Yuu Nakahara

The Navier-Stokes motions in a box with periodic boundary conditions are considered. First the existence of global regular two-dimensional solutions is proved. The solutions are such that continuous with respect to time norms are controlled…

偏微分方程分析 · 数学 2016-06-16 Wojciech M. Zajaczkowski

We prove existence and uniqueness of martingale solutions to a (slightly) hyperviscous stochastic Navier-Stokes equation in 2d with initial conditions absolutely continuous with respect to the Gibbs measure associated to the energy, getting…

概率论 · 数学 2020-07-06 M. Gubinelli , M. Turra

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