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We study free boundary problems for incompressible inhomogeneous flows governed by the Navier--Stokes equations, focusing on the regularity and global-in-time well-posedness of solutions in critical functional frameworks for small initial…

偏微分方程分析 · 数学 2025-12-11 Piotr B. Mucha , Tomasz Piasecki , Yoshihiro Shibata

The steady motion of a viscous incompressible fluid in distorted pipes, of finite length, is modeled through the Navier-Stokes equations with mixed boundary conditions: the inflow is given by an arbitrary member of the Lions-Magenes class…

偏微分方程分析 · 数学 2025-06-10 Alessio Falocchi , Ana Leonor Silvestre , Gianmarco Sperone

We study the nonhomogeneous boundary value problem for the Navier--Stokes equations of steady motion of a viscous incompressible fluid in a three--dimensional exterior domain with multiply connected boundary. We prove that this problem has…

偏微分方程分析 · 数学 2014-03-28 Mikhail Korobkov , Konstantin Pileckas , Remigio Russo

We consider a projection method for time-dependent incompressible Navier-Stokes equations with a total pressure boundary condition. The projection method is one of the numerical calculation methods for incompressible viscous fluids often…

数值分析 · 数学 2021-06-03 Kazunori Matsui

We consider a new way of establishing Navier wall laws. Considering a bounded domain $\Omega$ of R N , N=2,3, surrounded by a thin layer $\Sigma \epsilon$, along a part $\Gamma$2 of its boundary $\partial \Omega$, we consider a…

偏微分方程分析 · 数学 2020-07-17 Mustapha El Jarroudi , Alain Brillard

Martingale solutions of stochastic Navier-Stokes equations in 2D and 3D possibly unbounded domains, driven by the L\'evy noise consisting of the compensated time homogeneous Poisson random measure and the Wiener process are considered.…

概率论 · 数学 2012-09-03 Elżbieta Motyl

The purpose of this paper is to derive rigorously the so called viscous shallow water equations given for instance page 958-959 in [A. Oron, S.H. Davis, S.G. Bankoff, Rev. Mod. Phys, 69 (1997), 931?980]. Such a system of equations is…

偏微分方程分析 · 数学 2016-11-27 Didier Bresch , Pascal Noble

We consider the modified Navier-Stokes equations in R3 describing the motion of a fluid in the presence of a rotating rigid body. Weighted Sobolev spaces are used to describe the behavior of solutions at large distances. Under suitable…

偏微分方程分析 · 数学 2026-01-09 Tahar Zamène Boulmezaoud , Nabil Kerdid , Amel Kourta

We consider surface finite elements and a semi-implicit time stepping scheme to simulate fluid deformable surfaces. Such surfaces are modeled by incompressible surface Navier-Stokes equations with bending forces. Here, we consider closed…

数值分析 · 数学 2023-05-03 Veit Krause , Axel Voigt

In this paper we are concerned with the steady Navier-Stokes and Stokes problems with mixed boundary conditions involving Tresca slip, leak condition, one-sided leak conditions, velocity, pressure, rotation, stress and normal derivative of…

偏微分方程分析 · 数学 2016-11-28 Tujin Kim , Daomin Cao

A well-known unsolved problem (in the classical theory of fluid mechanics) is to identify a set of initial velocities, which may depend on the viscosity, the body forces and possibly the boundary of the fluid that will allow global in time…

数学物理 · 物理学 2007-05-23 Tepper L Gill , Woodford W. Zachary

We develop mathematical methods which allow us to study asymptotic properties of solutions to the three dimensional Navier-Stokes system for incompressible fluid in the whole three dimensional space. We deal either with the Cauchy problem…

偏微分方程分析 · 数学 2020-12-24 Marco Cannone , Grzegorz Karch , Dominika Pilarczyk , Gang Wu

Most researches on fluid dynamics are mostly dedicated to obtain the solutions of Navier-Stokes equation which governs fluid flow with particular boundary conditions and approximations. We propose an alternative approach to deal with fluid…

流体动力学 · 物理学 2007-05-23 A. Sulaiman , L. T. Handoko

We show the existence and the regularity properties of the weak solutions to the two-dimensional stationary incompressible inhomogeneous Navier-Stokes equations with variable viscosity coefficient, by analyzing a fourth-order nonlinear…

偏微分方程分析 · 数学 2022-05-09 Zihui He , Xian Liao

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

Many fundamental problems in fluid dynamics are related to the effects of solid boundaries. In general, they install sharp gradients and contribute to the developement of small-scale structures, which are computationally expensive to…

流体动力学 · 物理学 2024-12-20 Ciro S. Campolina , Alexei A. Mailybaev

This paper describes a novel numerical model aiming at solving moving-boundary problems such as free-surface flows or fluid-structure interaction. This model uses a moving-grid technique to solve the Navier--Stokes equations expressed in…

计算工程、金融与科学 · 计算机科学 2022-09-29 Nicolas Bodard , Roland Bouffanais , Michel O. Deville

In this paper, we consider the Stokes equations with non-homogeneous free boundary conditions, which is obtained by the linearization procedure of the free boundary problem of the Navier-Stokes equations describing the viscous compressible…

偏微分方程分析 · 数学 2025-02-20 Yuko Enomoto , Yoshihiro Shibata

Singularities of the Navier-Stokes equations occur when some derivative of the velocity field is infinite at any point of a field of flow (or, in an evolving flow, becomes infinite at any point within a finite time). Such singularities can…

流体动力学 · 物理学 2019-07-16 H. K. Moffatt

A few basic, intuitive, properties of the Navier-Stokes system of equations for incompressible fluid flows are discussed in this paper. We present a rephrased interpretation of the Navier-Stokes equation in a space having an arbitrary…

综合数学 · 数学 2023-06-28 R. K. Michael Thambynayagam