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In this paper, we are exploring some of the properties of the self-similar solutions of the first kind. In particular, we shall discuss the kinematic properties and also check the singularities of these solutions. We discuss these…

广义相对论与量子宇宙学 · 物理学 2009-11-10 M. Sharif , Sehar Aziz

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

This article offers a modern perspective which exposes the many contributions of Leray in his celebrated work on the Navier--Stokes equations from 1934. Although the importance of his work is widely acknowledged, the precise contents of his…

偏微分方程分析 · 数学 2023-07-07 Wojciech S. Ożański , Benjamin C. Pooley

We investigate structural and rigidity properties of \emph{Lie skew braces} (LSBs), objects essentially known in the literature as \emph{post--Lie groups}, obtained by endowing a manifold with two compatible group laws that share the same…

群论 · 数学 2026-02-26 Marco Damele , Andrea Loi

Numerical simulations demonstrate a link between dynamically cold initial solutions and self-similarity. However the nature of this link is not fully understood. Cold initial conditions alone without further symmetry do not lead to…

统计力学 · 物理学 2022-01-31 C Alard

We classify all (-1)-homogeneous axisymmetric no-swirl solutions of incompressible stationary Navier-Stokes equations in three dimension which are smooth on the unit sphere minus the south and north poles, parameterizing them as a four…

偏微分方程分析 · 数学 2017-06-12 Li Li , YanYan Li , Xukai Yan

A stochastic description of solutions of the Navier-Stokes equation is investigated. These solutions are represented by laws of finite dimensional semi-martingales and characterized by a weak Euler- Lagrange condition. A least action…

概率论 · 数学 2016-02-12 Ana Bela Cruzeiro , Rémi Lassalle

In this paper we are concerned with the initial boundary value problem of the 2, 3-D Navier-Stokes equations with mixed boundary conditions including conditions for velocity, static pressure, stress, rotation and Navier slip condition…

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

In this article we consider weak solutions of the three-dimensional incompressible fluid flow equations with initial data admitting a one-dimensional symmetry group. We examine both the viscous and inviscid cases. For the case of viscous…

In this paper, we prove the existence of smooth initial data for the 2D free boundary incompressible Navier-Stokes equations, for which the smoothness of the interface breaks down in finite time into a splash singularity.

偏微分方程分析 · 数学 2019-05-14 Angel Castro , Diego Córdoba , Charles Fefferman , Francisco Gancedo , Javier Gómez-Serrano

In this proceeding we expose a particular case of a recent result obtained by the authors regarding the incompressible Navier-Stokes equations in a smooth bounded and simply connected bounded domain, either in 2D or in 3D, with a Navier…

偏微分方程分析 · 数学 2017-03-22 Jean-Michel Coron , Frédéric Marbach , Franck Sueur

This manuscript derives an evolution equation for the symmetric part of the gradient of the velocity (the strain tensor) in the incompressible Navier-Stokes equation on $\mathbb{R}^3$, and proves the existence of $L^2$ mild solutions to…

偏微分方程分析 · 数学 2021-02-25 Evan Miller

In this paper, we consider the solvability of the two-dimensional stationary Navier--Stokes equations on the whole plane $\mathbb{R}^2$. In [6], it was proved that the stationary Navier--Stokes equations on $\mathbb{R}^2$ is ill-posed for…

偏微分方程分析 · 数学 2024-07-09 Mikihiro Fujii , Hiroyuki Tsurumi

Spontaneous symmetry breaking is central to our understanding of physics and explains many natural phenomena, from cosmic scales to subatomic particles. Its use for applications requires devices with a high level of symmetry, but engineered…

In this paper, we investigate the global existence of spherically symmetric strong solutions with large initial data to an initial-boundary value problem of the multidimensional isentropic compressible Navier-Stokes-Korteweg system in an…

偏微分方程分析 · 数学 2026-05-07 Zhengzheng Chen , Fanfan Jiang

We consider the long-time behavior of irrotational solutions of the three-dimensional compressible Euler equations with shocks, hypersurfaces of discontinuity across which the Rankine-Hugoniot conditions for irrotational flow hold. Our…

偏微分方程分析 · 数学 2024-03-21 Daniel Ginsberg , Igor Rodnianski

This paper extends the weak solution theory for the 3D Navier-Stokes equations of Barker, Seregin and Sverak from a critical setting to a supercritical setting making sure to include a useful a priori energy bound as well as a statement…

偏微分方程分析 · 数学 2025-08-04 Zachary Bradshaw , Joshua Hudson

In three previous papers by the two first 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…

偏微分方程分析 · 数学 2008-07-09 Jean-Yves Chemin , Isabelle Gallagher , Marius Paicu

The blow up phenomenon in the first step of the classical Picard's scheme was proved in this paper. For certain initial spaces, Bourgain-Pavlovi\'c and Yoneda proved the ill-posedness of the Navier-Stokes equations by showing the norm…

数学物理 · 物理学 2020-08-20 Qixiang Yang , Haibo Yang , Huoxiong Wu

We show weak-strong uniqueness and stability results for the motion of a two or three dimensional fluid governed by the Navier-Stokes equation interacting with a flexible, elastic plate of Koiter type. The plate is situated at the top of…

偏微分方程分析 · 数学 2020-10-05 Sebastian Schwarzacher , Matthias Sroczinski