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A theory for the evolution of a metric $g$ driven by the equations of three-dimensional continuum mechanics is developed. This metric in turn allows for the local existence of an evolving three-dimensional Riemannian manifold immersed in…

偏微分方程分析 · 数学 2017-10-05 Gui-Qiang G. Chen , Marshall Slemrod , Dehua Wang

In this paper, we use frequency decomposition techniques to give a direct proof of global existence and regularity for the Navier-Stokes equations on two-dimensional Riemannian manifolds without boundary. Our techniques are inspired by an…

偏微分方程分析 · 数学 2024-05-16 Aynur Bulut , Khang Manh Huynh

In this paper, we give a new derivation of the incompressible Navier-Stokes equations on a compact Riemannian manifold $M$ via the Bellman dynamic programming principle on the infinite dimensional group $SG={\rm SDiff}(M)$ of volume…

概率论 · 数学 2025-03-18 Xiang-Dong Li , Guoping Liu

We consider the motion of an incompressible viscous fluid on a compact Riemannian manifold $\sM$ with boundary. The motion on $\sM$ is modeled by the incompressible Navier-Stokes equations, and the fluid is subject to pure or partial slip…

偏微分方程分析 · 数学 2024-10-25 Yuanzhen Shao , Gieri Simonett , Mathias Wilke

In this paper we study the dimension reduction limits of the compressible Navier--Stokes equations over product Riemannian manifolds $\mathcal{O}_\epsilon \cong \mathcal{M} \times \epsilon\mathcal{F}$, such that $\dim\,(\mathcal{M})=n$ and…

偏微分方程分析 · 数学 2018-11-05 Siran Li

We prove global smooth continuation for smooth finite-energy solutions of the three-dimensional incompressible Navier--Stokes equations by a two-part first-threshold argument. Part I proves the axisymmetric-with-swirl theorem in the exact…

偏微分方程分析 · 数学 2026-05-18 Rishad Shahmurov

In this paper, we study the dynamic stability of the 3D axisymmetric Navier-Stokes Equations with swirl. To this purpose, we propose a new one-dimensional (1D) model which approximates the Navier-Stokes equations along the symmetry axis. An…

偏微分方程分析 · 数学 2007-05-23 Thomas Y. Hou , Congming Li

Global regularity for the three-dimensional incompressible Navier-Stokes equations remains unresolved partly because weak, mild, and strong formulations employ incompatible functional settings. The present study introduces a…

综合数学 · 数学 2025-07-21 Daria Nikitaeva

For the physically important case in which the viscosity coefficients depend on the density $\rho$ through a power law (i.e., $\rho^\delta$ with some exponent $\delta \in (\frac{1}{2},1)$), we establish the global well-posedness of regular…

偏微分方程分析 · 数学 2026-05-19 Gui-Qiang G. Chen , Jiawen Zhang , Shengguo Zhu

Introduction: the Navier-Stokes equations are essential in fluid dynamics, describing the motion of fluids like liquids and gases. Solving these equations, especially in complex flows and high-Reynolds-number regimes, is a significant…

流体动力学 · 物理学 2024-12-05 Sebastian Ali Sacasa-Cespedes

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 integrate in closed implicit form the Navier-Stokes equations for an incompressible fluid and the kinematical dynamo equation, in smooth manifolds and Euclidean space. This integration is carried out by applying Stochastic Differential…

数学物理 · 物理学 2007-05-23 Diego L. Rapoport

In geophysical flows such as large-scale ocean dynamics, the vertical viscosity is often much smaller than the horizontal viscosity. This anisotropy makes it natural to ask whether solutions of the full anisotropic compressible…

偏微分方程分析 · 数学 2026-05-25 Jincheng Gao , Lianyun Peng , Jiahong Wu , Zheng-an Yao

We consider a system of many hard rods moving in one dimension. As it is an integrable system, it possesses an extensive number of conserved quantities and its evolution on macroscopic scale can be described by generalised hydrodynamics.…

统计力学 · 物理学 2024-12-23 Mrinal Jyoti Powdel , Anupam Kundu

We investigate the nonlinear instability of a smooth steady density profile solution of the threedimensional nonhomogeneous incompressible Navier-Stokes equations in the presence of a uniform gravitational field, including a Rayleigh-Taylor…

偏微分方程分析 · 数学 2015-06-05 Fei Jiang , Song Jiang , Guoxi Ni

The incompressible Navier-Stokes (NS) equation is known to govern the hydrodynamic limit of essentially any fluid and its rich non-linear structure has critical implications in both mathematics and physics. The employability of the methods…

高能物理 - 理论 · 物理学 2019-06-26 Shounak De , Sumit Dey , Bibhas Ranjan Majhi

We are concerned with the barotropic compressible Navier-Stokes equations on the real line. Our primary goal is to establish the global well-posedness in a critical regularity framework in the case where the initial data are small…

偏微分方程分析 · 数学 2026-03-17 Raphaël Danchin

We study an initial-boundary value problem for the incompressible Navier-Stokes-Cahn-Hilliard system with non-constant density proposed by Abels, Garcke and Gr\"{u}n in 2012. This model arises in the diffuse interface theory for binary…

偏微分方程分析 · 数学 2023-02-21 Helmut Abels , Harald Garcke , Andrea Giorgini

A well-known diffuse interface model consists of the Navier-Stokes equations nonlinearly coupled with a convective Cahn-Hilliard type equation. This system describes the evolution of an incompressible isothermal mixture of binary-fluids and…

偏微分方程分析 · 数学 2011-02-22 Pierluigi Colli , Sergio Frigeri , Maurizio Grasselli

Turbulence remains one of the central open problems in classical physics, largely due to the absence of a closed dynamical description of the Reynolds stress. Existing approaches typically rely either on local constitutive assumptions or on…

流体动力学 · 物理学 2026-03-25 Alejandro Sevilla
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