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Extending recent results in the isentropic case, we use a combination of asymptotic ODE estimates and numerical Evans-function computations to examine the spectral stability of shock-wave solutions of the compressible Navier--Stokes…

Mathematical Physics · Physics 2017-06-09 Jeffrey Humpherys , Gregory Lyng , Kevin Zumbrun

By a combination of asymptotic ODE estimates and numerical Evans function calculations, we establish stability of viscous shock solutions of the isentropic compressible Navier--Stokes equations with $\gamma$-law pressure (i) in the limit as…

Analysis of PDEs · Mathematics 2017-06-09 Jeffrey Humpherys , Olivier Laffite , Kevin Zumbrun

In this paper, we examine the stability problem for viscous shock solutions of the isentropic compressible Navier--Stokes equations, or $p$-system with real viscosity. We first revisit the work of Matsumura and Nishihara, extending the…

Analysis of PDEs · Mathematics 2017-06-12 Blake Barker , Jeffrey Humpherys , Keith Rudd , Kevin Zumbrun

Building on Evans function techniques developed to study the stability of viscous shocks, we examine the stability of viscous strong detonation wave solutions of the reacting Navier-Stokes equations. The primary result, following the work…

Analysis of PDEs · Mathematics 2009-11-10 Gregory Lyng , Kevin Zumbrun

We summarize recent progress on one- and multi-dimensional stability of viscous shock wave solutions of compressible Navier--Stokes equations and related symmetrizable hyperbolic--parabolic systems, with an emphasis on the large-amplitude…

Mathematical Physics · Physics 2007-05-23 Kevin Zumbrun

In this paper, we study the isothermal gas dynamics. We first establish the global existence of strong solutions to the one-dimensional isothermal Navier-Stokes system for smooth initial data without any smallness conditions, assuming that…

Analysis of PDEs · Mathematics 2025-05-22 Saehoon Eo , Namhyun Eun , Moon-Jin Kang , HyeonSeop Oh

It has long been a standard practice to neglect diffusive effects in stability analyses of detonation waves. Here, with the principal aim of quantifying the impact of these oft-neglected effects on the stability characteristics of such…

Analysis of PDEs · Mathematics 2017-06-09 Blake Barker , Jeffrey Humpherys , Gregory Lyng , Kevin Zumbrun

Extending investigations of Barker, Humpherys, Lafitte, Rudd, and Zumbrun for compressible gas dynamics and Freist\"uhler and Trakhinin for compressible magnetohydrodynamics, we study by a combination of asymptotic ODE estimates and…

Analysis of PDEs · Mathematics 2017-06-09 Blake Barker , Jeffrey Humpherys , Kevin Zumbrun

We carry out the first rigorous numerical proof based on Evans function computations of stability of viscous shock profiles, for the system of isentropic gas dynamics with monatomic equation of state. We treat a selection of shock strengths…

Analysis of PDEs · Mathematics 2016-01-06 Blake Barker , Kevin Zumbrun

We study nonlinear time-asymptotic stability of small--amplitude planar Lax shocks in a model consisting of a system of multi--dimensional conservation laws coupled with an elliptic system. Such a model can be found in context of dynamics…

Analysis of PDEs · Mathematics 2011-08-18 Toan Nguyen

This paper shows that for the three-dimensional compressible isentropic Navier-Stokes equations, the planar viscous shocks are time-asymptotically stable to suitably small initial perturbations with zero masses. In particular, the…

Analysis of PDEs · Mathematics 2024-05-22 Qian Yuan

We prove the nonlinear stability of the planar viscous shock up to a time-dependent shift for the three-dimensional (3D) compressible Navier-Stokes equations under the generic perturbations, in particular, without zero mass conditions.…

Analysis of PDEs · Mathematics 2022-04-21 Teng Wang , Yi Wang

In the present paper, it is shown that the large amplitude viscous shock wave is nonlinearly stable for isentropic Navier-Stokes equations, in which the pressure could be general and includes $\gamma$-law, and the viscosity coefficient is a…

Analysis of PDEs · Mathematics 2019-10-22 Lin He , Feimin Huang

A free boundary problem for the one-dimensional compressible Navier-Stokes equations is investigated. The asymptotic stability of the viscous shock wave is established under some smallness conditions. The proof is given by an elementary…

Analysis of PDEs · Mathematics 2009-12-25 Feimin Huang , Xiaoding Shi , Yi Wang

The stability of solutions under periodic perturbations for both inviscid and viscous conservation laws is an interesting and important problem. In this paper, a large-amplitude viscous shock under space-periodic perturbation for the…

Analysis of PDEs · Mathematics 2021-09-15 Feimin Huang , Qian Yuan

This paper is concerned with the stability of planar viscous shock wave for the 3-dimensional compressible Navier-Stokes-Poisson (NSP) system in the domain $\Omega:=\mathbb{R}\times \mathbb{T}^2$ with…

Analysis of PDEs · Mathematics 2023-08-21 Xiaochun Wu

This paper is concerned with nonlinear stability of viscous contact discontinuity to a free boundary problem for the one-dimensional full compressible Navier-Stokes equations in half space $[0,\infty)$. For the case when the local stability…

Analysis of PDEs · Mathematics 2014-10-09 Tingting Zheng

We establish long-time stability of multi-dimensional noncharacteristic boundary layers of a class of hyperbolic--parabolic systems including the compressible Navier--Stokes equations with inflow [outflow] boundary conditions, under the…

Mathematical Physics · Physics 2008-08-01 Toan Nguyen , Kevin Zumbrun

For the two-dimensional Navier--Stokes equations of isentropic magnetohydrodynamics (MHD) with $\gamma$-law gas equation of state, $\gamma\ge 1$, and infinite electrical resistivity, we carry out a global analysis categorizing all possible…

Analysis of PDEs · Mathematics 2009-12-15 Blake Barker , Olivier Lafitte , Kevin Zumbrun

Building on work of Barker, Humpherys, Lafitte, Rudd, and Zumbrun in the shock wave case, we study stability of compressive, or "shock-like", boundary layers of the isentropic compressible Navier-Stokes equations with gamma-law pressure by…

Analysis of PDEs · Mathematics 2017-06-12 Nicola Costanzino , Jeffrey Humpherys , Toan Nguyen , Kevin Zumbrun
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