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We examine the conditional regularity of the solutions of Navier-Stokes equations in the entire three-dimensional space under the assumption that the data are axially symmetric. We show that if positive part of the radial component of…

偏微分方程分析 · 数学 2015-06-05 Adam Kubica

In this paper we establish a Serrin type regularity criterion on the gradient of pressure in weak spaces for the Leray-Hopf weak solutions of the Navier-Stokes equations in R3.

偏微分方程分析 · 数学 2007-05-23 Zhihui Cai , Jian Zhai

In this paper, we investigate an initial-boundary value problem for a chemotaxis-fluid system in a general bounded regular domain $\Omega \subset \mathbb{R}^N$ ($N\in\{2,3\}$), not necessarily being convex. Thanks to the elementary lemma…

偏微分方程分析 · 数学 2023-07-28 Jie Jiang , Hao Wu , Songmu Zheng

The system of three dimensional Navier-Stokes equations is considered. We obtain some new local energy bounds that enable us to improve several $\epsilon$-regularity criteria. They key idea here is to view the `head pressure' as a signed…

偏微分方程分析 · 数学 2017-02-03 Cristi Guevara , Nguyen Cong Phuc

We construct large velocity vector solutions to the three dimensional inhomogeneous Navier-Stokes system. The result is proved via the stability of two dimensional solutions with constant density, under the assumption that initial density…

偏微分方程分析 · 数学 2019-01-29 Piotr B. Mucha , Liutang Xue , Xiaoxin Zheng

We consider the Navier-Stokes equations in a channel with a narrowing and walls of varying curvature. By applying the empirical interpolation method to generate an affine parameter dependency, the offline-online procedure can be used to…

数值分析 · 数学 2020-06-24 Martin Hess , Annalisa Quaini , Gianluigi Rozza

A modified version of the three dimensional Navier-Stokes equations is considered with periodic boundary conditions. A bounded constant delay is introduced into the convective term, that produces a regularizing effect on the solution. In…

偏微分方程分析 · 数学 2018-08-01 Hakima Bessaih , María J. Garrido-Atienza , Björn Schmalfuss

This paper addresses a nonstationary flow of heat-conductive incompressible Newtonian fluid with temperature-dependent viscosity coupled with linear heat transfer with advection and a viscous heat source term, under Navier/Dirichlet…

偏微分方程分析 · 数学 2011-11-15 Luisa Consiglieri

In this short note, we give a link between the regularity of the solution $u$ to the 3D Navier-Stokes equation, and the behavior of the direction of the velocity $u/|u|$. It is shown that the control of $\Div (u/|u|)$ in a suitable…

偏微分方程分析 · 数学 2007-05-23 Alexis Vasseur

In this paper we develop new methods to obtain regularity criteria for the three-dimensional Navier-Stokes equations in terms of dynamically restricted endpoint critical norms: the critical Lebesgue norm in general or the critical weak…

偏微分方程分析 · 数学 2023-02-27 Tobias Barker , Pedro Gabriel Fernández-Dalgo , Christophe Prange

In this paper, we derive regular criteria via pressure or gradient of the velocity in Lorentz spaces to the 3D Navier-Stokes equations. It is shown that a Leray-Hopf weak solution is regular on $(0,T]$ provided that either the norm…

偏微分方程分析 · 数学 2020-03-18 Xiang Ji , Yanqing Wang , Wei Wei

In this paper, we investigate the link between kinetic equations (including Boltzmann with or without cutoff assumption and Landau equations) and the incompressible Navier-Stokes equation. We work with strong solutions and we treat all the…

偏微分方程分析 · 数学 2026-05-20 Kleber Carrapatoso , Isabelle Gallagher , Isabelle Tristani

We obtain logarithmic improvements for conditions for regularity of the Navier-Stokes equation, similar to those of Prodi-Serrin or Beale-Kato-Majda. Some of the proofs make use of a stochastic approach involving Feynman-Kac like…

偏微分方程分析 · 数学 2013-06-04 Stephen Montgomery-Smith

In this survey article, we will discuss some regularity criteria for the Navier--Stokes equation that provide geometric constraints on any possible finite-time blowup. We will also discuss the physical significance of such regularity…

偏微分方程分析 · 数学 2023-08-23 Evan Miller

We are concerned with the problem,originated from Seregin [18,19,20], what are minimal sufficiently conditions for the regularity of suitable weak solutions to the 3d Naiver-Stokes equations. We prove some interior regularity criteria, in…

偏微分方程分析 · 数学 2014-10-14 Yanqing Wang , Gang Wu

We prove an $\epsilon$-regularity criterion for the 3D Navier-Stokes equations in terms of initial data. It shows that if a scaled local $L^2$ norm of initial data is sufficiently small around the origin, a suitable weak solution is regular…

偏微分方程分析 · 数学 2022-03-09 Kyungkeun Kang , Hideyuki Miura , Tai-Peng Tsai

We obtain a regularity criteria of the solution to the three-dimensional magnetohydrodynamics system to remain smooth for all time involving only one velocity and one vorticity component. Moreover, the norm in space and time with which we…

偏微分方程分析 · 数学 2016-03-22 Kazuo Yamazaki

We consider the Navier-Stokes-Fourier system with the inhomogeneous boundary conditions for the velocity and the temperature. We show that solutions emanating from sufficiently regular data remain regular as long as the density $\varrho$,…

偏微分方程分析 · 数学 2023-02-01 Danica Basarić , Eduard Feireisl , Hana Mizerová

In this paper we provide a sufficient condition, in terms of only one of the nine entries of the gradient tensor, i.e., the Jacobian matrix of the velocity vector field, for the global regularity of strong solutions to the three-dimensional…

偏微分方程分析 · 数学 2015-05-19 Chongsheng Cao , Edriss S. Titi

In this paper we derive regular criteria in Lorentz spaces for Leray-Hopf weak solutions $v$ of the three-dimensional Navier-Stokes equations based on the formal equivalence relation $\pi\cong|v|^2$, where $\pi$ denotes the fluid pressure…

偏微分方程分析 · 数学 2020-09-04 Hugo Beirão da Veiga , Jiaqi Yang