中文
相关论文

相关论文: The three limits of the hydrostatic approximation

200 篇论文

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

The purpose of this paper is to study the vanishing viscosity limit for the d-dimensional Navier--Stokes equations in the whole space: \begin{equation*} \begin{cases} \partial_tu^\varepsilon+u^\varepsilon\cdot \nabla…

偏微分方程分析 · 数学 2023-07-14 Jinlu Li , Yanghai Yu , Weipeng Zhu

We consider the hydrodynamics of relativistic conformal field theories at finite temperature. We show that the limit of slow motions of the ideal hydrodynamics leads to the non-relativistic incompressible Euler equation. For viscous…

高能物理 - 理论 · 物理学 2009-01-14 Itzhak Fouxon , Yaron Oz

In this article we are interested in the derivation of efficient domain decomposition methods for the viscous primitive equations of the ocean. We consider the rotating 3d incompressible hydrostatic Navier-Stokes equations with free…

数值分析 · 数学 2009-05-25 Emmanuel Audusse , Pierre Dreyfuss , Benoit Merlet

In this paper, we are concerned with the vanishing viscosity problem for the three-dimensional Navier-Stokes equations with helical symmetry, in the whole space. We choose viscosity-dependent initial $\bu_0^\nu$ with helical swirl, an…

偏微分方程分析 · 数学 2018-08-01 Quansen Jiu , Milton C. Lopes Filho , Dongjuan Niu , Helena J. Nussenzveig Lopes

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

In this note, we consider the homogenization of the compressible Navier-Stokes equations in a periodically perforated domain in $\mathbb{R}^3$. Assuming that the particle size scales like $\varepsilon^3$, where $\varepsilon>0$ is their…

偏微分方程分析 · 数学 2022-11-28 Peter Bella , Florian Oschmann

The second-grade fluid equations are a model for viscoelastic fluids, with two parameters: $\alpha > 0$, corresponding to the elastic response, and $\nu > 0$, corresponding to viscosity. Formally setting these parameters to $0$ reduces the…

偏微分方程分析 · 数学 2015-06-11 Milton C. Lopes Filho , Helena J. Nussenzveig Lopes , Edriss S. Titi , Aibin Zang

In this paper, we first obtain the temporal decay estimates for weak solutions to the three dimensional generalized Navier-Stokes equations. Then, with these estimates at disposal, we obtain the temporal decay estimates for higher order…

偏微分方程分析 · 数学 2014-06-10 Quansen Jiu , Huan Yu

In this paper we study the hydrodynamic (small mass approximation) limit of a Fokker-Planck equation. This equation arises in the kinetic description of the evolution of a particle system immersed in a viscous Stokes flow. We discuss two…

偏微分方程分析 · 数学 2018-06-26 Ioannis Markou

Using a weak convergence approach, we establish a Large Deviation Principle (LDP) for the solutions of fluid dynamic systems in two-dimensional bounded domains subjected to no-slip boundary conditions and perturbed by additive noise. Our…

概率论 · 数学 2023-05-19 Federico Butori , Eliseo Luongo

We consider the compressible Navier-Stokes equation with density dependent viscosity coefficients, focusing on the case where those coefficients vanish on vacuum. We prove the stability of weak solutions both in the torus and in the whole…

偏微分方程分析 · 数学 2007-05-23 Antoine Mellet , Alexis F. Vasseur

We investigate the barotropic compressible Navier-Stokes equations with the Navier-slip boundary conditions in a general two-dimensional bounded simply connected domain. For initial density that is allowed to vanish, we establish the global…

偏微分方程分析 · 数学 2025-07-04 Qinghao Lei , Chengfeng Xiong

We present the derivation of hydrodynamical equations for a perfect fluid in General Relativity, within the 3+1 decomposition of spacetime framework, using only primitive variables. Primitive variables are opposed to conserved variables, as…

广义相对论与量子宇宙学 · 物理学 2023-04-17 Gaël Servignat , Jerome Novak , Isabel Cordero-Carrión

In this paper, we consider the 3D primitive equations of oceanic and atmospheric dynamics with only horizontal eddy viscosities in the horizontal momentum equations and only vertical diffusivity in the temperature equation. Global…

偏微分方程分析 · 数学 2017-03-08 Chongsheng Cao , Jinkai Li , Edriss S. Titi

Recently, for periodic initial data with initial density allowed to vanish, Huang and Li [1] establish the global existence of strong and weak solutions for the two-dimensional compressible Navier{Stokes equations with no restrictions on…

偏微分方程分析 · 数学 2012-06-21 Fei Jiang

In this paper, we consider the three-dimensional isentropic Navier-Stokes equations for compressible fluids with viscosities depending on density in a power law and allowing initial vacuum. We introduce the notion of regular solutions and…

偏微分方程分析 · 数学 2015-04-14 Yachun Li , Ronghua Pan , Shengguo Zhu

In this paper, we establish vanishing viscosity limit of the 2D Navier-Stokes equations in a horizontally periodic strip. On the vertical direction, the horizontal component of the velocity is subjected to two different types of boundary…

偏微分方程分析 · 数学 2024-04-30 Mingwen Fei , Xinghong Pan , Jianfeng Zhao

In this paper, we justify the limit from the Navier-Stokes system in a thin domain to the hydrostatic Navier-Stokes/Prandtl system for the convex initial data with Gevrey 9/8 regualrity in $x$.

偏微分方程分析 · 数学 2021-10-27 Chao Wang , Yuxi Wang , Zhifei Zhang

In this paper, we give a rigorous justification of the deviation of the primitive equations with only horizontal viscosity and magnetic diffusivity (PEHM) as the small aspect ratio limit of the incompressible three-dimensional scaled…

偏微分方程分析 · 数学 2023-08-08 Jie Zhang , Wenjun Liu