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We show strong convergence of the vorticities in the vanishing viscosity limit for the incompressible Navier-Stokes equations on the two-dimensional torus, assuming only that the initial vorticity of the limiting Euler equations is in $L^p$…

偏微分方程分析 · 数学 2021-07-07 Helena J. Nussenzveig Lopes , Christian Seis , Emil Wiedemann

We study the motion of a compressible heat-conducting fluid in three dimensions interacting with a non-linear flexible shell. The fluid is described by the full Navier--Stokes--Fourier system. The shell constitutes an unknown part of the…

偏微分方程分析 · 数学 2021-11-18 Dominic Breit , Sebastian Schwarzacher

We show that for a certain family of initial data, there exist non-unique weak solutions to the 3D incompressible Euler equations satisfying the weak energy inequality, whereas the weak limit of every sequence of Leray-Hopf weak solutions…

偏微分方程分析 · 数学 2012-08-14 Claude Bardos , Edriss S. Titi , Emil Wiedemann

The Navier--Stokes (NS) equations describe fluid dynamics through a high-dimensional, nonlinear system of partial differential equations (PDEs). Despite their fundamental importance, their behavior in turbulent regimes remains incompletely…

数学物理 · 物理学 2025-04-04 Alexander Migdal

In this paper we rule out the possibility of asymptotically self-similar singularities for both of the 3D Euler and the 3D Navier-Stokes equations. The notion means that the local in time classical solutions of the equations develop…

偏微分方程分析 · 数学 2007-05-23 Dongho Chae

We study an asymptotic analysis of a coupled system of kinetic and fluid equations. More precisely, we deal with the nonlinear Vlasov-Fokker-Planck equation coupled with the compressible isentropic Navier-Stokes system through a drag force…

偏微分方程分析 · 数学 2020-06-18 Young-Pil Choi , Jinwook Jung

Fluid flows are typically studied by solving the Navier--Stokes equation. One of the fundamental assumptions of this equation is Stokes' hypothesis. This hypothesis assumes bulk viscosity, to be identically zero. The Stokes' hypothesis is a…

流体动力学 · 物理学 2023-03-16 Bhanuday Sharma , Rakesh Kumar

We study a triple singular limit for the scaled barotropic Navier-Stokes system modeling the motion of a rotating, compressible, and viscous fluid, where the Mach and Rossby numbers are proportional to a small parameter, while the Reynolds…

偏微分方程分析 · 数学 2013-02-04 Eduard Feireisl , Antonin Novotny

We study inviscid limits of invariant measures for the 2D Stochastic Navier-Stokes equations. As shown in \cite{Kuksin2004} the noise scaling $\sqrt{{\nu}}$ is the only one which leads to non-trivial limiting measures, which are invariant…

偏微分方程分析 · 数学 2013-02-05 Nathan Glatt-Holtz , Vladimir Sverak , Vlad Vicol

We consider the three-dimensional fluid-structure interaction system modeling a system consisting of a viscous incompressible fluid and an elastic plate forming its moving upper boundary. The fluid is described by the incompressible…

偏微分方程分析 · 数学 2025-12-12 Mario Bukal , Igor Kukavica , Linfeng Li , Boris Muha

We consider a diffuse interface model which describes the motion of an incompressible isothermal mixture of two immiscible fluids. This model consists of the Navier-Stokes equations coupled with a convective nonlocal Cahn-Hilliard equation.…

偏微分方程分析 · 数学 2015-09-11 Sergio Frigeri , Ciprian G. Gal , Maurizio Grasselli

The Navier--Stokes equations for incompressible flows past a two--dimensional sphere are considered in this article. The existence of an inertial form of the equations is established. Furthermore for the first time for fluid equations, we…

chao-dyn · 物理学 2008-02-03 Roger Temam , Shouhong Wang

We study an unsteady non linear fluid-structure interaction problem which is a simplified model to describe blood flow through viscoleastic arteries. We consider a Newtonian incompressible two-dimensional flow described by the Navier-Stokes…

偏微分方程分析 · 数学 2016-02-17 C. Grandmont , M. Hillairet

We give a survey of recent results on weak-strong uniqueness for compressible and incompressible Euler and Navier-Stokes equations, and also make some new observations. The importance of the weak-strong uniqueness principle stems, on the…

偏微分方程分析 · 数学 2017-05-12 Emil Wiedemann

We demonstrate existence in the ``large" and uniqueness in the ``small" of equilibrium configurations for the coupled system consisting of a Navier-Stokes fluid interacting with a rigid body subjected to spring forces and restoring moments.…

偏微分方程分析 · 数学 2025-12-25 D. Bonheure , G. P. Galdi , C. Patriarca

The incompressible Navier-Stokes equations and static Euler equations are considered. We find that there exist infinite non-trivial regular solutions of incompressible static Euler equations with given boundary conditions. Moreover there…

偏微分方程分析 · 数学 2025-02-18 Yongqian Han

We consider the motion of an axisymmetric column of Navier-Stokes fluid with a free surface. Due to surface tension, the thickness of the fluid neck goes to zero in finite time. After the singularity, the fluid consists of two halves, which…

流体动力学 · 物理学 2009-11-07 Jens Eggers

The aim of these notes is to present in a comprehensive and relatively self-contained way some recent developments in the mathematical analysis of two-dimensional viscous flows. We consider the incompressible Navier-Stokes equations in the…

偏微分方程分析 · 数学 2012-03-06 Thierry Gallay

In fairly general conditions we give explicit (smooth) solutions for the potential flow. We show that, rigorously speaking, the equations of the fluid mechanics have not rotational solutions. However, within the usual approximations of an…

流体动力学 · 物理学 2023-09-21 Marian Apostol

In this paper we aim to construct a very weak solution to the steady two-dimensional Navier-Stokes equations which is affected by an external force induced by a point vortex on the unit disk. Such a solution is also the form of…

偏微分方程分析 · 数学 2024-10-11 Zhi Chen , Mingwen Fei , Zhiwu Lin , Jianfeng Zhao