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相关论文: 1-D Isentropic Euler flows: Self-similar Vacuum So…

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We study the motion of charged liquid drop in three dimensions where the equations of motions are given by the Euler equations with free boundary with an electric field. This is a well-known problem in physics going back to the famous work…

偏微分方程分析 · 数学 2024-03-07 Vesa Julin , Domenico Angelo La Manna

Incompressible Euler flows in narrow domains, in which the horizontal length scale is much larger than other scales, play an important role in applications, and their leading-order behavior can be described by the hydrostatic Euler…

偏微分方程分析 · 数学 2023-01-26 Wang Shing Leung , Tak Kwong Wong , Chunjing Xie

This paper investigates the global existence of classical solutions to the isentropic compressible Navier-Stokes equations with slip boundary condition in a three-dimensional (3D) exterior domain. It is shown that the classical solutions…

偏微分方程分析 · 数学 2025-04-03 Minghong Xie , Saiguo Xu , Yinghui Zhang

In this paper, we study the uniqueness of the steady 1-D shock solutions for the inviscid compressible Euler system in a finite nozzle via asymptotic analysis for physical parameters. The parameters for the heat conductivity and the…

偏微分方程分析 · 数学 2023-11-14 Beixiang Fang , Su Jiang , Piye Sun

It has been known since work of Lichtenstein [42] and Gunther [29] in the 1920's that the $3D$ incompressible Euler equation is locally well-posed in the class of velocity fields with H\"older continuous gradient and suitable decay at…

偏微分方程分析 · 数学 2020-05-05 Tarek M. Elgindi

This paper is concerned with self-similar solutions of the steady Navier-Stokes system in a two-dimensional sector with the no-slip boundary condition. We give necessary and sufficient conditions in terms of the angle of the sector and the…

偏微分方程分析 · 数学 2025-02-18 Jeaheang Bang , Changfeng Gui , Hao Liu , Yun Wang , Chunjing Xie

We are concerned with the inviscid limit of the Navier-Stokes equations to the Euler equations for barotropic compressible fluids in $\mathbb{R}^3$. When the viscosity coefficients obey a lower power-law of the density (i.e., $\rho^\delta$…

偏微分方程分析 · 数学 2021-12-21 Geng Chen , Gui-Qiang G. Chen , Shengguo Zhu

A new self-similar solution describing the dynamical condensation of a radiative gas is investigated under a plane-parallel geometry. The dynamical condensation is caused by thermal instability. The solution is applicable to generic flow…

天体物理学 · 物理学 2009-11-13 Kazunari Iwasaki , Toru Tsuribe

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

In this paper, the Cauchy problem for the three-dimensional (3-D) isentropic compressible Navier-Stokes equations with degenerate viscosities is considered. By introducing some new variables and making use of the "quasi-symmetric…

偏微分方程分析 · 数学 2019-04-09 Zhouping Xin , Shengguo Zhu

In this paper, we justify the low Mach number limit of the steady irrotational Euler flows for the airfoil problem, which is the first result for the low Mach number limit of the steady Euler flows in an exterior domain. The uniform…

偏微分方程分析 · 数学 2019-01-15 Mingjie Li , Tian-Yi Wang , Wei Xiang

In this paper, we consider the Cauchy problem of the multi-dimensional compressible Navier-Stokes-Euler system for two-phase flow motion, which consists of the isentropic compressible Navier-Stokes equations and the isothermal compressible…

偏微分方程分析 · 数学 2024-08-09 Hai-Liang Li , Ling-Yun Shou

We consider the isentropic Euler equations of gas dynamics in the whole two-dimensional space and we prove the existence of a $C^\infty$ initial datum which admits infinitely many bounded admissible weak solutions. Taking advantage of the…

偏微分方程分析 · 数学 2019-03-26 Elisabetta Chiodaroli , Ondřej Kreml , Václav Mácha , Sebastian Schwarzacher

In this paper, we consider the one-dimensional isentropic compressible Euler equations with source term $\beta(t,x)\rho|u|^{\alpha}u$ in a bounded domain, which can be used to describe gas transmission in a nozzle.~The model is imposed a…

偏微分方程分析 · 数学 2022-07-19 Xiaomin Zhang , Jiawei Sun , Huimin Yu

Shock waves driven by the release of energy at the center of a cold ideal gas sphere of initial density rho\propto r^{-omega} approach a self-similar (SLS) behavior, with velocity \dot{R}\propto R^delta, as R->\infty. For omega>3 the…

高能天体物理现象 · 物理学 2015-05-18 Doron Kushnir , Eli Waxman

We are concerned with the global existence of entropy solutions for the compressible Euler equations describing the gas flow in a nozzle with general cross-sectional area, for both isentropic and isothermal fluids. New viscosities are…

偏微分方程分析 · 数学 2023-09-06 Wentao Cao , Feimin Huang , Difan Yuan

We construct global-in-time weak solutions to the pressureless Euler alignment system posed on the whole line and supplemented with initial conditions, where an initial density is an arbitrary, nonnegative, bounded, and integrable function…

偏微分方程分析 · 数学 2024-09-24 Szymon Cygan , Grzegorz Karch

We prove that for the two-dimensional steady complete compressible Euler system, with given uniform upcoming supersonic flows, the following three fundamental flow patterns (special solutions) in gas dynamics involving transonic shocks are…

偏微分方程分析 · 数学 2010-04-13 Beixiang Fang , Li Liu , Hairong Yuan

We provide numerical evidence for a potential finite-time self-similar singularity of the 3D axisymmetric Euler equations with no swirl and with $C^\alpha$ initial vorticity for a large range of $\alpha$. We employ a highly effective…

偏微分方程分析 · 数学 2024-07-03 Thomas Y. Hou , Shumao Zhang

On exponentially expanding Friedmann-Lema\^{i}tre-Robertson-Walker (FLRW) spacetimes, there is a distinguished family of spatially homogeneous and isotropic solutions to the relativistic Euler equations with a linear equation of state of…

广义相对论与量子宇宙学 · 物理学 2025-04-01 Todd A. Oliynyk