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Incompressible inviscid limit of the viscous two-fluid model with general initial data

机译:一般初始数据的粘性双流体模型的不可压缩缺陷极限

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In this paper, we study the incompressible inviscid limit of the viscous two-fluid model in the whole space R-3 with general initial data in the framework of weak solutions. By applying the refined relative entropy method and carrying out the detailed analysis on the oscillations of the densities and the velocity, we prove rigorously that the weak solutions of the compressible two-fluid model converge to the strong solution of the incompressible Euler equations in the time interval provided that the latter exists. Moreover, thanks to the Strichartz's estimates of linear wave equations, we also obtain the convergence rates. The main ingredient of this paper is that our wave equations include the oscillations caused by the two different densities and the velocity and we also give an detailed analysis on the effect of the oscillations on the evolution of the solutions.
机译:在本文中,我们研究了整个空间R-3中粘性双流体模型的不可压缩的缺陷限制,弱解决方案框架中的一般初始数据。 通过应用精细的相对熵方法并对密度和速度的振荡进行详细分析,严格地证明了可压缩的双流体模型的弱解,即时的不可压缩欧拉方程的强溶液 间隔提供了后者存在。 此外,由于Strichartz的线性波动方程的估计,我们还获得了收敛速率。 本文的主要成分是我们的波浪方程包括由两种不同的密度和速度引起的振荡,并且我们还详细分析了振荡对解决方案演变的影响。

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