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Existence of global strong solution for the compressible Navier-Stokes system and the Korteweg system in two-dimension

Haspot, Boris (2013), Existence of global strong solution for the compressible Navier-Stokes system and the Korteweg system in two-dimension, Methods and Applications of Analysis, 20, 2, p. 141-164. http://dx.doi.org/10.4310/MAA.2013.v20.n2.a3

Type
Article accepté pour publication ou publié
External document link
http://hal.archives-ouvertes.fr/hal-00753929
Date
2013
Journal name
Methods and Applications of Analysis
Volume
20
Number
2
Publisher
International Press
Pages
141-164
Publication identifier
http://dx.doi.org/10.4310/MAA.2013.v20.n2.a3
Metadata
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Author(s)
Haspot, Boris
Abstract (EN)
This paper is dedicated to the study of viscous compressible barotropic fluids in dimension $N=2$. We address the question of the global existence of strong solutions with large initial data for compressible Navier-Stokes system and Korteweg system. In the first case we are interested by slightly extending a famous result due to V. A. Vaigant and A. V. Kazhikhov in \cite{VG} concerning the existence of global strong solution in dimension two for a suitable choice of viscosity coefficient ($\mu(\rho)=\mu>0$ and $\lambda(\rho)=\lambda\rho^{\beta}$ with $\beta>3$) in the torus. We are going to weaken the condition on $\beta$ by assuming only $\beta>2$ essentially by taking profit of commutator estimates introduced by Coifman et al in \cite{4M} and using a notion of \textit{effective velocity} as in \cite{VG}. In the second case we study the existence of global strong solution with large initial data in the sense of the scaling of the equations for Korteweg system with degenerate viscosity coefficient and with friction term.
Subjects / Keywords
Korteweg equations; barotropic fluids; Navier–Stokes equations

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