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In the paper, we consider the solvability of the two-dimensional Navier-Stokes equations in an exterior unit disk. On the boundary of the disk, the tangential velocity is subject to the perturbation of a rotation, and the normal velocity is…

偏微分方程分析 · 数学 2025-01-15 Zijin Li , Xinghong Pan

We consider the motion of compressible Navier-Stokes fluids with the hard sphere pressure law around a rigid obstacle when the velocity and the density at infinity are non zero. This kind of pressure model is largely employed in various…

偏微分方程分析 · 数学 2022-08-31 Sarka Necasova , Antonin Novotny , Arnab Roy

In this article we consider viscous flow in the exterior of an obstacle satisfying the standard no-slip boundary condition at the surface of the obstacle. We seek conditions under which solutions of the Navier-Stokes system in the exterior…

偏微分方程分析 · 数学 2009-02-17 D. Iftimie , M. C. Lopes Filho , H. J. Nussenzveig Lopes

The aim of this work is to study the Navier-Stokes-Voigt equations that govern flows with non-negative density of incompressible fluids with elastic properties. For the associated non-linear initial-and boundary-value problem, we prove the…

偏微分方程分析 · 数学 2023-09-04 Hermenegildo Borges de Oliveira , Khonatbek Khompysh , Aidos Ganizhanuly Shakir

Both Newtonian and non-Newtonian fluids may exhibit complex slip behaviour at the boundary. We examine a broad class of slip boundary conditions that generalises the commonly used Navier slip, perfect slip, stick-slip and Tresca friction…

We present in this note the existence and uniqueness results for the Stokes and Navier-Stokes equations which model the laminar flow of an incompressible fluid inside a two-dimensional channel of periodic sections. The data of the pressure…

偏微分方程分析 · 数学 2007-05-23 Chérif Amrouche , Macaire Batchi , Jean Batina

We study slip boundary conditions for simple fluids at surfaces with nanoscale chemical heterogeneities. Using a perturbative approach, we examine the flow of a Newtonian fluid far from a surface described by a heterogeneous Navier slip…

流体动力学 · 物理学 2007-12-21 S. C. Hendy , N. J. Lund

An alternative form of the general solution of the linearized stationary Navier-Stokes equations for an incompressible fluid in spherical coordinates is obtained by the vector potential method. A previously published solution to this…

流体动力学 · 物理学 2024-12-10 Peter Lebedev-Stepanov

This paper investigates boundary hemivariational inequality problems associated with both stationary and non-stationary two and three-dimensional convective Brinkman-Forchheimer equations (or Navier-stokes equations with damping), which…

偏微分方程分析 · 数学 2025-08-26 Jyoti Jindal , Sagar Gautam , Manil T. Mohan

This paper is concerned with the Rayleigh-Taylor instability for the nonhomogeneous incompressible Navier-Stokes equations with Navier-slip boundary conditions around a steady-state in an infinite slab, where the Navier-slip coefficients do…

偏微分方程分析 · 数学 2020-07-15 Shijin Ding , Zhijun Ji , Quanrong Li

We consider optimal control problems governed by systems describing the unsteady flows of an incompressible second grade fluid with Navier-slip boundary conditions. We prove the existence of an optimal solution and derive the corresponding…

最优化与控制 · 数学 2015-11-05 Nadir Arada , Fernanda Cipriano

Consider the stationary Boltzmann equation in 2D convex domains with diffusive boundary condition. In this paper, we establish the hydrodynamic limits while the boundary layers are present, and derive the steady Navier-Stokes-Fourier system…

偏微分方程分析 · 数学 2021-08-25 Lei Wu

The steady motion of a viscous incompressible fluid in a multiply-connected, planar, bounded domain (perforated with a large number of small holes) is modeled through the Navier-Stokes equations with non-homogeneous Dirichlet boundary data…

偏微分方程分析 · 数学 2025-02-25 Clara Patriarca , Gianmarco Sperone

Despite its conceptual and practical importance, the rigorous derivation of the steady incompressible Navier-Stokes-Fourier system from the Boltzmann theory has been {an} outstanding {open problem} for general domains in 3D. We settle this…

偏微分方程分析 · 数学 2018-09-21 Raffaele Esposito , Yan Guo , Chanwoo Kim , Rossana Marra

We investigate the global in time stability of regular solutions with large velocity vectors to the evolutionary Navier-Stokes equation in ${\bf R}^3$. The class of stable flows contains all two dimensional weak solutions. The only…

偏微分方程分析 · 数学 2007-05-23 Piotr B. Mucha

We consider the stationary incompressible Navier Stokes equation in the exterior of a disk B with non-zero Dirichlet boundary conditions on the disk and zero boundary conditions at infinity. We prove the existence of solutions for an open…

偏微分方程分析 · 数学 2012-07-17 Matthieu Hillairet , Peter Wittwer

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

This paper is concerned with the evolution of two incompressible, immiscible fluids in two dimensions governed by the inhomogeneous Navier-Stokes equations. We prove global-in-time well-posedness, establishing the preservation of the…

偏微分方程分析 · 数学 2025-09-24 Francisco Gancedo , Eduardo García-Juárez , Paula Luna-Velasco

We prove some criteria for the convergence of weak solutions of the 2D incompressible Navier-Stokes equations with Navier slip boundary conditions to a strong solution of incompressible Euler. The slip rate depends on a power of the…

偏微分方程分析 · 数学 2017-01-30 Yasunori Maekawa , Matthew Paddick

We study a three-dimensional fluid-structure interaction problem describing the motion of an incompressible, viscous fluid coupled with a deformable elastic shell of Koiter type that forms part of the fluid boundary. The fluid motion is…

偏微分方程分析 · 数学 2026-02-24 Claudiu Mîndrilă , Arnab Roy