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相关论文: $\mathbf{BV}$ Solutions to $1$D Isentropic Euler E…

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In this paper, we investigate linear stability properties of the 2D isentropic compressible Euler equations linearized around a shear flow given by a monotone profile, close to the Couette flow, with constant density, in the domain…

偏微分方程分析 · 数学 2020-03-04 Paolo Antonelli , Michele Dolce , Pierangelo Marcati

We consider an inverse problem for the compressible Euler's equations in polytropic fluid. We show that by taking active measurements near a particle trajectory one can determine the background flow in a set where pressure waves can…

偏微分方程分析 · 数学 2026-04-17 Gunther Uhlmann , Yuchao Yi , Jian Zhai

We investigate the existence and the zero viscosity limit of steady compressible shear flow with Navier-slip boundary condition in the absence of any external force in a two-dimension domain $\Omega=(0,L)\times(0,2)$. More precisely, under…

偏微分方程分析 · 数学 2024-06-10 Wenbin Li , Chunhui Zhou

For the natural initial conditions $L^1$ in the density field (more generally a positive bounded Radon measure) and $L^\infty$ in the velocity field we obtain global approximate solutions to the Cauchy problem for the 3-D systems of…

偏微分方程分析 · 数学 2014-06-03 Mathilde Colombeau

We prove nonlinear asymptotic stability of a large class of monotonic shear flows among solutions of the 2D Euler equations in the channel $\mathbb{T}\times[0,1]$. More precisely, we consider shear flows $(b(y),0)$ given by a function $b$…

偏微分方程分析 · 数学 2020-01-10 Alexandru D. Ionescu , Hao Jia

We consider the compressible Euler equations of gas dynamics with isentropic equation of state. Standard numerical schemes for the Euler equations suffer from stability and accuracy issues in the low Mach regime. These failures are…

数值分析 · 数学 2024-11-07 Saurav Samantaray

The Euler system in fluid dynamics is a model of a compressible inviscid fluid incorporating the three basic physical principles: Conservation of mass, momentum, and energy. We show that the Cauchy problem is basically ill-posed for the…

偏微分方程分析 · 数学 2020-06-03 Eduard Feireisl , Christian Klingenberg , Ondřej Kreml , Simon Markfelder

We obtain existence and conormal Sobolev regularity of strong solutions to the 3D compressible isentropic Navier-Stokes system on the half-space with a Navier boundary condition, over a time that is uniform with respect to the viscosity…

偏微分方程分析 · 数学 2014-10-13 Matthew Paddick

This paper is concerned with the incompressible limit problem for strong solutions of compressible two-phase flow models under periodic boundary conditions, where the Navier-Stokes equations are nonlinearly coupled with either Cahn-Hilliard…

偏微分方程分析 · 数学 2025-03-04 Yinghua Li , Manrou Xie

We give an existence and asymptotic result for the so-called finite energy weak martingale solution of the compressible isentropic Navier--Stokes system driven by some random force in the whole spatial region. In particular, given a general…

偏微分方程分析 · 数学 2017-05-04 Prince Romeo Mensah

We prove a rigorous convergence result for the compressible to incompressible limit of weak entropy solutions to the isothermal 1D Euler equations.

偏微分方程分析 · 数学 2013-08-20 Rinaldo M. Colombo , Graziano Guerra , Veronika Schleper

In this note, we prove that the solutions obtained to the spherically symmetric Euler equations in the recent works [2, 3] are weak solutions of the multi-dimensional compressible Euler equations. This follows from new uniform estimates…

偏微分方程分析 · 数学 2019-08-28 Matthew R. I. Schrecker

Smooth solutions of the forced incompressible Euler equations satisfy an energy balance, where the rate-of-change in time of the kinetic energy equals the work done by the force per unit time. Interesting phenomena such as turbulence are…

偏微分方程分析 · 数学 2024-04-22 Fabian Jin , Samuel Lanthaler , Milton C. Lopes Filho , Helena J. Nussenzveig Lopes

We study the large bulk viscosity limit for the compressible magnetohydrodynamics (MHD) equations in two and three dimensions. For arbitrarily large initial data in critical Besov spaces, we prove the global well-posedness of strong…

偏微分方程分析 · 数学 2026-02-06 Gennaro Ciampa , Donatella Donatelli , Giada Pellecchia

The connection between the compressible flow of liquid crystals with low Mach number and the incompressible flow of liquid crystals is studied in a bounded domain. In particular, the convergence of weak solutions of the compressible flow of…

偏微分方程分析 · 数学 2011-08-26 Dehua Wang , Cheng Yu

We prove the low Mach number limit of non-isentropic ideal magnetohydrodynamic (MHD) equations with general initial data in the half-space whose boundary satisfies the perfectly conducting wall condition. By observing a special structure…

偏微分方程分析 · 数学 2024-12-16 Qiangchang Ju , Jiawei Wang , Junyan Zhang

The problem of two stiff fluids (energy density = pressure) moving radially in spherical symmetry is treated. The metric ansatz is chosen spherically symmetric, conformally static with a multiplicative separation of variables. The first…

广义相对论与量子宇宙学 · 物理学 2008-11-05 Valentin Kostov

We study the asymptotic limit of solutions to the barotropic Navier-Stokes system, when the Mach number is proportional to a small parameter $\ep \to 0$ and the fluid is confined to an exterior spatial domain $\Omega_\ep$ that may vary with…

偏微分方程分析 · 数学 2015-04-01 Eduard Feireisl , Trygve K. Karper , Ondrej Kreml , Jan Stebel

The boundary conditions prescribing the constant traction or the so-called do-nothing conditions are frequently taken on artificial boundaries in the numerical simulations of steady flow of incompressible fluids, despite the fact that they…

流体动力学 · 物理学 2020-02-25 M. Lanzendörfer , J. Hron

We consider one-dimensional self-similar solutions to the isentropic Euler system when the initial data are at vacuum to the left of the origin. For $x>0$ the initial velocity and sound speed are of form $u_0(x)=u_+x^{1-\lambda}$ and…

偏微分方程分析 · 数学 2023-12-14 Helge Kristian Jenssen