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We prove two results that together strongly suggest that obtaining a positive answer to the Navier-Stokes global regularity question requires more than a refinement of partial regularity theory. First we prove that there exists a class of…

偏微分方程分析 · 数学 2024-09-10 Matei P. Coiculescu

Large weak solutions to Navier--Stokes--Maxwell systems are not known to exist in their corresponding energy space in full generality. Here, we mainly focus on the three-dimensional setting of a classical incompressible…

偏微分方程分析 · 数学 2018-11-06 Diogo Arsénio , Isabelle Gallagher

We consider the Cauchy problem for the full compressible Navier-Stokes equations with vanishing of density at infinity in R3. Our main purpose is to prove the existence (and uniqueness) of global strong and classical solutions and study the…

偏微分方程分析 · 数学 2017-02-22 Huanyao Wen , Changjiang Zhu

The coupled quasilinear Keller-Segel-Navier-Stokes system is considered under Neumann boundary conditions for $n$ and $c$ and no-slip boundary conditions for $u$ in three-dimensional bounded domains $\Omega\subseteq \mathbb{R}^3$ with…

偏微分方程分析 · 数学 2017-04-11 Jiashan Zheng

We analyze the forced incompressible stationary Navier-Stokes flow in $\mathbb{R}^n_+$, $n>2$. Existence of a unique solution satisfying a global integrabilty property measured in a scale of tent spaces is established for small data in…

偏微分方程分析 · 数学 2024-02-15 Gael Y. Diebou

The existence and uniqueness of global regular solution of incompressible Navier-Stokes equations in $\mathbb{R}^3$ are derived provided the initial velocity vector field holds a special structure.

偏微分方程分析 · 数学 2023-12-01 Yongqian Han

We consider the three-dimensional steady Navier-Stokes system in the exterior of an infinite cylinder under the action of an external force. We construct solutions in the class of vertically uniform flows which vanish at horizontal…

偏微分方程分析 · 数学 2026-04-28 Mitsuo Higaki , Ryoma Horiuchi

In bounded smooth domains $\Omega\subset\mathbb{R}^N$, $N\in\{2,3\}$, considering the chemotaxis--fluid system \[ \begin{cases} \begin{split} & n_t + u\cdot \nabla n &= \Delta n - \chi \nabla \cdot(\frac{n}{c}\nabla c) &\\ & c_t + u\cdot…

偏微分方程分析 · 数学 2017-07-19 Tobias Black , Johannes Lankeit , Masaaki Mizukami

We show that, for a given H\"older continuous curve in $\{(\gamma(t),t)\,:\, t>0\} \subset R^3\times R^+$, there exists a solution to the Navier-Stokes system for an incompressible fluid in $R^3$ which is smooth outside this curve and…

偏微分方程分析 · 数学 2014-01-16 Grzegorz Karch , Xiaoxin Zheng

We study the unsteady incompressible Navier-Stokes equations in three dimensions interacting with a non-linear flexible shell of Koiter type. This leads to a coupled system of non-linear PDEs where the moving part of the boundary is an…

偏微分方程分析 · 数学 2022-11-15 Boris Muha , Sebastian Schwarzacher

A class of sufficient conditions of local regularity for suitable weak solutions to the nonstationary three-dimensional Navier-Stokes equations are discussed. The corresponding results are formulated in terms of functionals which are…

偏微分方程分析 · 数学 2007-05-23 G Seregin

In this paper, we derive several new sufficient conditions of non-breakdown of strong solutions for for both the 3D heat-conducting compressible Navier-Stokes system and nonhomogeneous incompressible Navier-Stokes equations. First, it is…

偏微分方程分析 · 数学 2019-12-30 Yanqing Wang , Wei Wei , Gang Wu , Yulin Ye

We analyze the long-time behavior of solutions to a Navier-Stokes-Cahn-Hilliard system with chemotaxis effects and a solution-dependent mass source term. The fluid velocity satisfies the Navier-Stokes system, the phase field variable…

偏微分方程分析 · 数学 2024-12-31 Jingning He

The Nernst-Planck-Navier-Stokes system models electrodiffusion of ions in a fluid. We prove global existence of solutions in bounded domains in three dimensions with either blocking (no-flux) or uniform selective (special Dirichlet)…

偏微分方程分析 · 数学 2020-08-25 Peter Constantin , Mihaela Ignatova , Fizay-Noah Lee

We prove the global existence and uniqueness of smooth solutions to the one-dimensional barotropic Navier-Stokes system with degenerate viscosity $\mu(\rho)=\rho^\alpha$. We establish that the smooth solutions have possibly two different…

偏微分方程分析 · 数学 2020-04-22 Moon-Jin Kang , Alexis Vasseur

It has recently become common to study many different approximating equations of the Navier-Stokes equation. One of these is the Leray-$\alpha$ equation, which regularizes the Navier-Stokes equation by replacing (in most locations) the…

偏微分方程分析 · 数学 2014-02-05 Nathan Pennington

We consider the Cauchy problem to the axisymmetric Navier-Stokes equations. To prove an existence of global regular solutions we examine the Navier-Stokes equations near the axis of symmetry and far from it separately. We derive only a…

偏微分方程分析 · 数学 2026-02-05 Wiesław J. Grygierzec , Wojciech M. Zajączkowski

In that report solution to incompressible Navier - Stokes equations in non - dimensional form will be presented. Standard fundamental methods: SIMPLE, SIMPLER (SIMPLE Revised) and Vorticity-Stream function approach are compared and results…

流体动力学 · 物理学 2007-05-23 Maciej Matyka

We present the first generalization of Navier-Stokes theory to relativity that satisfies all of the following properties: (a) the system coupled to Einstein's equations is causal and strongly hyperbolic; (b) equilibrium states are stable;…

广义相对论与量子宇宙学 · 物理学 2022-03-02 Fabio S. Bemfica , Marcelo M. Disconzi , Jorge Noronha

We investigate the decay properties of smooth axially symmetric D-solutions to the steady Navier-Stokes equations. The achievements of this paper are two folds. One is improved decay rates of $u_{\th}$ and $\na {\bf u}$, especially we show…

偏微分方程分析 · 数学 2016-11-29 Shangkun Weng
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