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We investigate sufficient H\"older continuity conditions on Leray-Hopf (weak) solutions to the in unsteady Navier-Stokes equations in three dimensions guaranteeing energy conservation. Our focus is on the half-space case with homogeneous…

偏微分方程分析 · 数学 2024-08-12 Luigi C. Berselli , Alex Kaltenbach , Michael Ružička

We develop a semi-implicit algorithm for time-accurate simulation of the compressible Navier-Stokes equations, with special reference to wall-bounded flows. The method is based on linearization of the partial convective fluxes associated…

流体动力学 · 物理学 2016-08-31 Davide Modesti , Sergio Pirozzoli

Recently there has been an increasing interest for a better understanding of ultra low Reynolds number flows. In this context we present a new setup which allows to efficiently solve the stationary incompressible Navier-Stokes equations in…

流体动力学 · 物理学 2015-05-13 Vincent Heuveline , Peter Wittwer

This paper concerns the construction of traveling wave solutions to the free boundary incompressible Navier-Stokes system. We study a single layer of viscous fluid in a strip-like domain that is bounded below by a flat rigid surface and…

偏微分方程分析 · 数学 2022-09-13 Junichi Koganemaru , Ian Tice

We are concerned with the global existence of finite-energy entropy solutions of the one-dimensional compressible Euler equations with (possibly) damping, alignment forces, and nonlocal interactions: Newtonian repulsion and quadratic…

偏微分方程分析 · 数学 2024-03-14 Jose A. Carrillo , Gui-Qiang G. Chen , Difan Yuan , Ewelina Zatorska

We are concerned with a semilinear elliptic equation in the half-space, subject to a nonlinear dynamic boundary condition. We establish the global well-posedness of solutions in a new setting for the problem, namely the framework of Morrey…

偏微分方程分析 · 数学 2026-03-12 Lucas C. F. Ferreira , Narayan V. Machaca-León

We investigate the hydrostatic approximation of a hyperbolic version of Navier-Stokes equations, which is obtained by using Cattaneo type law instead of Fourier law, evolving in a thin strip $\R\times (0,\varepsilon)$. The formal limit of…

偏微分方程分析 · 数学 2021-11-29 Marius Paicu , Ping Zhang

This work is devoted to study the global behavior of viscous flows contained in a symmetric domain with complete slip boundary. In such scenario the boundary no longer provides friction and therefore the perturbation of angular velocity…

偏微分方程分析 · 数学 2016-12-26 Xin Liu

The evolution of an electrically conducting imcompressible fluid with nonconstant density can be described by a set of equations combining the continuity, momentum and Maxwell's equations; altogether known as the inhomogeneous…

偏微分方程分析 · 数学 2024-05-24 Diogo Arsénio , Haroune Houamed , Belkacem Said--Houari

In to previous papers by the authors, classes of initial data to the three dimensional, incompressible Navier-Stokes equations were presented, generating a global smooth solution although the norm of the initial data may be chosen…

偏微分方程分析 · 数学 2007-10-31 Jean-Yves Chemin , Isabelle Gallagher

In this paper we study the regularity properties of solutions to the Davey-Stewartson system. It is shown that for initial data in a Sobolev space, the nonlinear part of the solution flow resides in a smoother space than the initial data…

偏微分方程分析 · 数学 2021-10-05 Engin Başakoğlu

The existence of a global attractor for wave equations in unbounded domains is a challenging problem due to the non-compactness of the Sobolev embeddings. To overcome this difficulty, some authors have worked with weighted Sobolev spaces…

偏微分方程分析 · 数学 2018-01-03 Djiby Fall , Yuncheng You

We consider a system of partial differential equations describing the steady flow of a compressible heat conducting Newtonian fluid in a three-dimensional channel with inflow and outflow part. We show the existence of a strong solution…

偏微分方程分析 · 数学 2012-12-03 Tomasz Piasecki , Milan Pokorny

We study the stationary nonhomogeneous Navier--Stokes problem in a two dimensional symmetric domain with a semi-infinite outlet (for instance, either parabo-\\loidal or channel-like). Under the symmetry assumptions on the domain, boundary…

偏微分方程分析 · 数学 2015-05-28 M. Chipot , K. Kaulakyt , K. Pileckas , W. Xue

We prove the global existence of weak solutions to the isentropic compressible Navier-Stokes equations with ripped density in the half-plane under a slip boundary condition provided the bulk viscosity coefficient is properly large.…

偏微分方程分析 · 数学 2025-10-28 Shuai Wang , Guochun Wu , Xin Zhong

The analysis of the long-term behavior of the mathematical model of a neural network constitutes a suitable framework to develop new tools for the dynamical description of nonautonomous state-dependent delay equations (SDDEs). The concept…

动力系统 · 数学 2019-07-24 Cinzia Elia , Ismael Maroto , Carmen Núñez , Rafael Obaya

We study a diffuse interface model that describes the dynamics of incompressible two-phase flows with chemotaxis effects. This model also takes into account some significant mechanisms such as active transport and nonlocal interactions of…

偏微分方程分析 · 数学 2023-07-28 Jingning He , Hao Wu

The propagation of internal gravity waves in stratified media, such as those found in ocean basins and lakes, leads to the development of geometrical patterns called "attractors". These structures accumulate much of the wave energy and make…

谱理论 · 数学 2023-06-23 Javier A. Almonacid , Nilima Nigam

In this paper we show that the long time dynamics (the global attractor) of the 2D Navier-Stokes equation is embedded in the long time dynamics of an ordinary differential equation, named {\it determining form}, in a space of trajectories…

动力系统 · 数学 2015-06-17 Ciprian Foias , Michael S. Jolly , Rostyslav Kravchenko , Edriss S. Titi

This paper addresses the three-dimensional Navier-Stokes equations for an incompressible fluid whose density is permitted to be inhomogeneous. We establish a theorem of global existence and uniqueness of strong solutions for initial data…

偏微分方程分析 · 数学 2013-04-23 Walter Craig , Xiangdi Huang , Yun Wang