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Based on Dou Huashu's energy gradient theory, this paper focuses on the weak singularity of the incompressible Navier-Stokes (NS) equations in steady, fully developed flows. When the gradient of total mechanical energy is perpendicular to…

流体动力学 · 物理学 2026-03-10 Chio Chon Kit

This is an expository paper on the theory of local regularity for weak solutions to the non-stationary 3D Navier-Stokes equations near the boundary of a domain.

偏微分方程分析 · 数学 2019-07-16 Gregory Seregin , Timofey Shilkin

The weak solution to the Navier-Stokes equations in a bounded domain $D \subset \mathbb{R}^3$ with a smooth boundary is proved to be unique provided that it satisfies an additional requirement. This solution exists for all $t \geq 0$. In a…

数学物理 · 物理学 2012-09-11 A. G. Ramm

We establish the existence, uniqueness, and various estimates for Green functions of mixed Dirichlet-conormal derivative problems for the stationary Stokes system with measurable coefficients in a two-dimensional Reifenberg flat domain with…

偏微分方程分析 · 数学 2024-02-27 Jongkeun Choi , Minsuk Yang

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

In this paper, we consider the extended stochastic Navier-Stokes equations with Caputo derivative driven by fractional Brownian motion. We firstly derive the pathwise spatial and temporal regularity of the generalized Ornstein-Uhlenbeck…

数值分析 · 数学 2017-09-18 Guang-an Zou , Guangying Lv , Jiang-Lun Wu

This paper investigates a modification of the fictitious domain method with continuation in the lower-order coefficients for the unsteady Navier-Stokes equations governing the motion of an incompressible homogeneous fluid in a bounded 2D or…

In this paper, we investigate the compressible Navier-Stokes equations with degenerate, density-dependent, viscosity coefficient driven by multiplicative stochastic noise. We consider three-dimensional periodic domain and prove that the…

偏微分方程分析 · 数学 2022-07-21 Zdzisław Brzeźniak , Gaurav Dhariwal , Ewelina Zatorska

We consider the two-dimensional incompressible inhomogeneous Navier-Stokes equations with odd viscosity, where the shear and the odd viscosity coefficients depend continuously on the unknown density function. We establish the existence of…

偏微分方程分析 · 数学 2025-08-26 Rebekka Zimmermann

In this paper, we study regularity of weak solutions to the incompressible Navier-Stokes equations in $\mathbb{R}^{3}\times (0,T)$. The main goal is to establish the regularity criterion via the gradient of one velocity component in…

偏微分方程分析 · 数学 2023-06-22 Ahmad M. Alghamdi , Sadek Gala , Maria Alessandra Ragusa

We construct $L_p$-estimates for the inhomogeneous Oseen system studied in a two dimensional exterior domain $\Omega$ with inhomogeneous slip boundary conditions. The kernel of the paper is a result for the half space $\mathbb{R}^2_+$.…

数学物理 · 物理学 2015-05-13 Paweł Konieczny

We study Green functions for stationary Stokes systems satisfying the conormal derivative boundary condition. We establish existence, uniqueness, and various estimates for the Green function under the assumption that weak solutions of the…

偏微分方程分析 · 数学 2018-08-15 Jongkeun Choi , Hongjie Dong , Doyoon Kim

We propose a finite element discretization for the steady, generalized Navier-Stokes equations for fluids with shear-dependent viscosity, completed with inhomogeneous Dirichlet boundary conditions and an inhomogeneous divergence constraint.…

数值分析 · 数学 2023-10-09 Julius Jeßberger , Alex Kaltenbach

In this paper, we investigate the global existence and uniqueness of strong solutions to 2D incompressible inhomogeneous Navier-Stokes equations with viscous coefficient depending on the density and with initial density being discontinuous…

偏微分方程分析 · 数学 2017-12-12 Marius Paicu , Ping Zhang

We study the Stokes system with the localized boundary data in the half-space. We are concerned with the local regularity of its solution near the boundary away from the support of the given boundary data which are product forms of each…

偏微分方程分析 · 数学 2023-07-06 Kyungkeun Kang , Chanhong Min

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 nonstationary linearized Navier-Stokes equations in a bounded domain and first we prove a Carleman estimate with a regular weight function. Second we apply the Carleman estimate to a lateral Cauchy problem for the…

偏微分方程分析 · 数学 2016-01-20 Mourad Bellassoued , Oleg Imanuvilov , Masahiro Yamamoto

This paper is concerned with stochastic incompressible Navier-Stokes equations with multiplicative noise in two dimensions with respect to periodic boundary conditions. Based on the Helmholtz decomposition of the multiplicative noise,…

数值分析 · 数学 2022-11-28 Hailong Qiu

In the present paper, we establish the well-posedness, stability, and (weak) convergence of a fully-discrete approximation of the unsteady $p(\cdot,\cdot)$-Navier-Stokes equations employing an implicit Euler step in time and a discretely…

数值分析 · 数学 2024-02-27 Luigi C. Berselli , Alex Kaltenbach

The authors prove a maximum modulus estimate for solutions of the stationary Navier-Stokes system in bounded domains of polyhedral type.

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