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We study the initial-boundary value problem of the Navier-Stokes equations for incompressible fluids in a domain in $\R^3$ with compact and smooth boundary, subject to the kinematic and Navier boundary conditions. We first reformulate the…

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

In this paper, we prove several generalizations and applications of a fixed point theorem. This theorem is used to prove the existence and uniqueness of solutions of the linear sparse matrix problem considered.

经典分析与常微分方程 · 数学 2015-07-30 Xiaorong Liu

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 that for a given smooth initial value, if the finite element solution of the three-dimensional Navier-Stokes equations is bounded in a certain norm with a relatively small mesh size, then the solution of the Navier-Stokes equations…

偏微分方程分析 · 数学 2020-11-12 Buyang Li

We investigate existence, Liouville type theorems and regularity results for the 3D stationary and incompressible fractional Navier-Stokes equations: in this setting the usual Laplacian is replaced by its fractional power…

偏微分方程分析 · 数学 2023-01-30 Diego Chamorro , Bruno Poggi

We show that any solution of the two-dimensional Navier-Stokes equation whose vorticity distribution is uniformly bounded in $L^1(R^2)$ for positive times is entirely determined by the trace of the vorticity at $t = 0$, which is a finite…

偏微分方程分析 · 数学 2007-05-23 Isabelle Gallagher , Thierry Gallay

We study the 2D Navier-Stokes equations within the framework of a constraint that ensures energy conservation throughout the solution. By employing the Galerkin approximation method, we demonstrate the existence and uniqueness of a global…

偏微分方程分析 · 数学 2023-07-13 Sangram Satpathi

The paper proves existence of a large class of smooth solutions to the incompressible Navier-Stokes equations in the three dimensional space. The viscosity coefficient is put to be $1$. Our result points a new class of regular solutions…

偏微分方程分析 · 数学 2014-10-31 Piotr B. Mucha

The article provides an analytical solution of the Navier-Stokes equations for the case of the steady flow of an incompressible fluid between two uniformly co-rotating disks. The solution is derived from the asymptotical evolution of…

流体动力学 · 物理学 2007-05-23 Milan Batista

In this paper we consider a coupled hydrodynamical system which involves the Navier-Stokes equations for the velocity field and kinematic transport equations for the molecular orientation field. By applying the Chemin-Lerner's time-space…

偏微分方程分析 · 数学 2011-04-22 Jihong Zhao , Qiao Liu , Shangbin Cui

In this paper we investigate the uniqueness of solutions of the steady planar Navier-Stokes equations with different boundary conditions in the exterior domain. For a class of incompressible flow with constant vorticity, we prove the…

偏微分方程分析 · 数学 2022-06-30 Zhengguang Guo , Wendong Wang

We prove some smoothing effects for the 3-D Navier-Stokes equations for initial data belonging to the critical Sobolev space $H^{1/2}(\R^3)$. Asymptotic behavior of the global solution when the time goes to infinity is studied. We also…

偏微分方程分析 · 数学 2008-07-01 Jamel Benameur

This paper is concerned with the weak solution theory for the MHD system with large $L^3$-initial data. Due to the fact that the natural boundary condition on the magnetic field $H$ is the slip boundary condition, the Leray-Schauder…

偏微分方程分析 · 数学 2026-02-10 Baishun Lai , Ge Tang , Ziying Xu

In this paper, we prove the global existence and uniqueness of solution to d-dimensional (for $d=2,3$) incompressible inhomogeneous Navier-Stokes equations with initial density being bounded from above and below by some positive constants,…

偏微分方程分析 · 数学 2013-01-03 Marius Paicu , Ping Zhang , Zhifei Zhang

We prove the existence of strong solutions to Navier-Stokes equations in three dimensional thin domains. Our proof is based on the energy and the Poincar\'e inequalities as well as contraction principle argument and is free of the mean…

偏微分方程分析 · 数学 2012-04-27 B. Nowakowski , W. Zajączkowski

The inhomogeneous incompressible Navier-Stokes equations with fractional Laplacian dissipations in the multi-dimensional whole space are considered. The existence and uniqueness of global strong solution with vacuum are established for…

偏微分方程分析 · 数学 2018-06-13 Dehua Wang , Zhuan Ye

This paper is a continuation of [26]. Here theorems on conditional uniqueness and regularity for solutions to stochastic Navier-Stokes equations in $\mathbb R^d$ are presented.

概率论 · 数学 2025-03-27 István Gyöngy , Nicolai V. Krylov

Singularity of Navier-Stokes equations is uncovered for the first time which explains the mechanism of transition of a smooth laminar flow to turbulence. It is found that when an inflection point is formed on the velocity profile in…

流体动力学 · 物理学 2020-08-20 Hua-Shu Dou

In this paper, we consider the solvability of the two-dimensional stationary Navier--Stokes equations on the whole plane $\mathbb{R}^2$. In [6], it was proved that the stationary Navier--Stokes equations on $\mathbb{R}^2$ is ill-posed for…

偏微分方程分析 · 数学 2024-07-09 Mikihiro Fujii , Hiroyuki Tsurumi

Consider the unforced incompressible homogeneous Navier-Stokes equations on the $d$-torus $\mathbb{T}^d$ where $d\geq 4$ is the space dimension. It is shown that there exist nontrivial steady-state weak solutions $u\in L^{2}(\mathbb{T}^d)$.…

偏微分方程分析 · 数学 2019-03-27 Xiaoyutao Luo