arXivDaily arXiv每日学术速递 周一至周五更新
北美退伍军人节(Veterans Day),12 日无更新
arXiv 1409.5329math.AP
收藏

完全可压缩Navier-斯托克斯方程入流问题强粘性接触间断的稳定性

The stability of strong viscous contact discontinutiy to an inflow problem for full compressible Navier-Stokes equations

Tingting Zheng

摘要:

本文研究了半空间$[0,\infty)$中不同端点的一维完全可压缩Navier-斯托克斯方程粘性接触间断对流入问题的非线性稳定性。当接触间断的局部稳定性首先由\cite{X}研究,然后由\cite{LX}推广时,弱粘性接触间断的局部稳定性由\cite{HMS,HMX,HXY,HZ,HLM2009}很好地建立,但是对于具有大振荡端的流入气体的全局稳定性$(|θ_+-θ_-|>1\ and \ |ρ_+-ρ_-|>1)$,除了零耗散\cite{MaSX}或$γ\to 1$气体外,获得的结果较少见\cite{HH}。我们的主要目的是利用基本能量方法推导相应的两个不同端点的非线性稳定性结果。作为实现这一目标的第一步,我们将在本文中表明,与某一类大扰动,可以允许$|θ_--θ_+|>1$和$|ρ_--ρ_+|>1$,全球稳定性的结果保持。

英文摘要:

This paper is concerned with nonlinear stability of viscous contact discontinuity to inflow problem for the one-dimensional full compressible Navier-Stokes equations with different ends in half space $[0,\infty)$. For the case when the local stability of the contact discontinuities was first studied by \cite{X},later generalized by \cite{LX}, local stability of weak viscous contact discontinuity is well-established by \cite{HMS,HMX,HXY,HZ,HLM2009}, but for the global stability of inflow gas with big oscillation ends $(|θ_+-θ_-|>1\ and \ |ρ_+-ρ_-|>1)$, fewer results have been obtained excluding zero dissipation \cite{MaSX} or $γ\to 1$ gas see \cite{HH}. Our main purpose is to deduce the corresponding nonlinear stability result with the two different ends by exploiting the elementary energy method. As a first step towards this goal, we will show in this paper that with a certain class of big perturbation which can allow $|θ_--θ_+|>1$ and $|ρ_--ρ_+|>1$ ,the global stability result holds.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑