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相关论文: Stability of strong ideal-gas shock layers

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We investigate the time-asymptotic stability of solutions to the one-dimensional Navier-Stokes-Fourier system in the half-space, focusing on the outflow and impermeable wall problems. When the prescribed boundary and far-field conditions…

偏微分方程分析 · 数学 2026-03-03 Xushan Huang , Hobin Lee , HyeonSeop Oh

We extend the One-Way Navier Stokes (OWNS) approach to support nonlinear interactions between waves of different frequencies, which will enable nonlinear analysis of instability and transition. In OWNS, the linearized Navier-Stokes…

流体动力学 · 物理学 2025-02-10 Michael K. Sleeman , Matthew T. Lakebrink , Tim Colonius

We propose a numerical approach to regularize the contact line singularity appearing in the computation of viscous capillary-gravity waves with moving contact line in cylindrical containers. The linearized Navier-Stokes equations are…

流体动力学 · 物理学 2022-07-15 Alessandro Bongarzone , Francois Gallaire

In this paper, we consider numerical approximations for solving the micropolar Navier-Stokes (MNS) equations, that couples the Navier-Stokes equations and the angular momentum equation together. By combining the scalar auxiliary variable…

数值分析 · 数学 2022-10-07 Xiaodi Zhang , Xiaonian Long

We investigate existence and stability of viscoelastic shock profiles for a class of planar models including the incompressible shear case studied by Antman and Malek-Madani. We establish that the resulting equations fall into the class of…

偏微分方程分析 · 数学 2015-05-19 Blake Barker , Marta Lewicka , Kevin Zumbrun

This paper investigates the stability of traveling wave solutions to the free boundary Euler equations with a submerged point vortex. We prove that sufficiently small-amplitude waves with small enough vortex strength are conditionally…

偏微分方程分析 · 数学 2019-07-30 Kristoffer Varholm , Erik Wahlén , Samuel Walsh

The present contribution proves the asymptotic orbital stability of viscous regularizations of stable Riemann shocks of scalar balance laws, uniformly with respect to the viscosity/diffusion parameter $\epsilon$. The uniformity is…

偏微分方程分析 · 数学 2022-02-01 Paul Blochas , L. Miguel Rodrigues

We examine the spectral stability of travelling waves of the haptotaxis model studied in Harley et al (2014a). In the process we apply Li\'enard coordinates to the linearised stability problem and use a Riccati-transform/Grassmanian…

We show uniqueness and stability in $L^2$ and for all time for piecewise-smooth solutions to hyperbolic balance laws. We have in mind applications to gas dynamics, the isentropic Euler system and the full Euler system for a polytropic gas…

偏微分方程分析 · 数学 2020-11-26 Sam G. Krupa

We study the behavior of perturbations in a compressible one-dimensional inviscid gas with an ambient state consisting of constant pressure and periodically-varying density. We show through asymptotic analysis that long-wavelength…

偏微分方程分析 · 数学 2025-08-27 David I. Ketcheson , Giovanni Russo

We extend Guderley's problem of finding a self-similar scaling solution for a converging cylindrical or spherical shock wave from the ideal gas case to the case of flows with an arbitrary equation of state closure model, giving necessary…

流体动力学 · 物理学 2017-07-13 Zachary M. Boyd , Scott D. Ramsey , Roy S. Baty

This work establishes nonlinear orbital asymptotic stability of scalar radiative shock profiles, namely, traveling wave solutions to the simplified model system of radiating gas \cite{Hm}, consisting of a scalar conservation law coupled…

偏微分方程分析 · 数学 2009-05-28 Corrado Lattanzio , Corrado Mascia , Ramon Plaza , Toan Nguyen , Kevin Zumbrun

We investigate the time-asymptotically nonlinear stability of rarefaction waves to the Cauchy problem of an one-dimensional compressible Navier-Stokes type system for a viscous, compressible, radiative and reactive gas, where the…

偏微分方程分析 · 数学 2020-06-02 Guiqiong Gong , Lin He , Yongkai Liao

The rigorous study of spectral stability for strong detonations was begun by J.J. Erpenbeck in [Er1]. Working with the Zeldovitch-von Neumann-D\"oring (ZND) model, which assumes a finite reaction rate but ignores effects like viscosity…

数学物理 · 物理学 2015-05-27 Olivier Lafitte , Mark Williams , Kevin Zumbrun

We study a self-similar solution of the kinetic equation describing weak wave turbulence in Bose-Einstein condensates. This solution presumably corresponds to an asymptotic behavior of a spectrum evolving from a broad class of initial data,…

流体动力学 · 物理学 2021-07-07 B. V. Semisalov , V. N. Grebenev , S. B. Medvedev , S. V. Nazarenko

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

In this paper we study the nonlinear stability of a shear layer profile for Navier Stokes equations near a boundary. This question plays a major role in the study of the inviscid limit of Navier Stokes equations in a bounded domain as the…

偏微分方程分析 · 数学 2023-03-30 Dongfen Bian , Emmanuel Grenier

We establish the vanishing viscosity limit of the Navier-Stokes equations to the isentropic Euler equations for one-dimensional compressible fluid flow. For the Navier-Stokes equations, there exist no natural invariant regions for the…

偏微分方程分析 · 数学 2009-10-14 Gui-Qiang Chen , Mikhail Perepelitsa

We prove a stability result of constant equilibria for the three-dimensional Navier-Stokes-Poisson system uniform in the inviscid limit. We allow the initial density to be close to a constant and the potential part of the initial velocity…

偏微分方程分析 · 数学 2020-11-17 Frédéric Rousset , Changzhen Sun

We analyze the instability of a vortex column in a dilute polymer solution at large $\textit{Re}$ and $\textit{De}$ with $\textit{El} = \textit{De}/\textit{Re}$, the elasticity number, being finite. Here, $\textit{Re} = \Omega_0 a^2/\nu_s$…

流体动力学 · 物理学 2022-03-14 Anubhab Roy , Piyush Garg , Jhumpal Shashikiran Reddy , Ganesh Subramanian