Incompressible limit for a viscous compressible fluid
type: Item
instance of: scholarly article
title: Incompressible limit for a viscous compressible fluid
zbMATH Open document ID: 0909.35101
DOI: 10.1016/S0021-7824(98)80139-6
author: P.-L. Lions
author: Nader Masmoudi
published in: Journal de Mathématiques Pures et Appliquées. Neuvième Série
publication date: 1999-01-04T00:00:00Z
review text: The authors give the detailed proofs for results partially announced in \textit{P.-L. Lions} [C. R. Acad. Sci., Paris, Sér. I 317, 1197-1202 (1993; Zbl 0795.76068)]. The main object of the study is the system \[ \begin{aligned} &\frac{\partial \rho}{\partial t}+\text{div}(\rho u),\qquad \rho>0,\\ &\frac{\partial }{\partial t}(\rho u)+\text{div}(\rho u\times u) -\mu_\varepsilon\Delta u-\xi_\varepsilon\nabla\text{div}u+\frac a{\varepsilon^2} \nabla\rho^\gamma=0,\end{aligned} \tag{1} \] where \(u\) is the velocity of a fluid, \(\rho\) is the density, \(a>0\), \(\gamma>1\) are given numbers, \(\mu_\varepsilon\) and \(\xi_\varepsilon\) are normalized coefficients satisfying \[ \mu_\varepsilon\to\mu,\quad \xi_\varepsilon\to\xi\quad \text{ as } \varepsilon \text{ goes to }0_+,\quad \mu>0 \text{ and } \mu+\xi>0\quad \text{or }\mu=0. \] The limit of (1) as \(\varepsilon\to 0\) is the Navier-Stokes system \[ \frac{\partial u}{\partial t}+\text{div}(u\times u) -\mu\Delta u+\nabla\pi=0, \quad \text{div }u=0,\tag{2} \] or, when \(\mu=0\), the Euler equations \[ \frac{\partial u}{\partial t}+\text{div}(u\times u) +\nabla\pi=0, \quad\text{div }u=0,\tag{3} \] where \(\rho\) goes to 1 and \(\pi\) is the limit of \(\rho^\gamma-1/\varepsilon^2\). The authors prove the convergence results for the periodic case, in the whole space or in a bounded domain with Dirichlet or other boundary conditions. The stationary problem and the problem related to the linearized system are discussed too. The presented convergence results are valid globally in time and without restrictions upon the initial conditions. The authors mention a number of open questions together with open related problems.
Mathematics Subject Classification ID: 35Q30
Mathematics Subject Classification ID: 76N10
zbMATH DE Number: 1187614
zbMATH Keywords: global solution
reviewed by: Il'ya Sh. Mogilevskii
MaRDI profile type: Publication
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description: scientific article; zbMATH DE number 1187614