Homogenization of the inviscid incompressible fluid flow through a 2D porous medium
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- by Andro Mikelić and Laetitia Paoli PDF
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Abstract:
We consider the non-stationary incompressible Euler equations in a 2D porous medium. We suppose a periodic porous medium, with the period proportional to the characteristic pore size $\varepsilon$ and with connected fluid part. The flow is subject to an external force, corresponding to an inflow. We start from an initial irrotational velocity and prove that the effective filtration velocity satisfies a transient filtration law. It has similarities with Darcy’s law, but it now connects the time derivative of the filtration velocity with the pressure gradient. The viscosity does not appear in the filtration law any more and the permeability tensor is determined through auxiliary problems of decomposition type. Using the limit problem, we construct the correction for the fluid velocity and prove that $C^1 ( [0,T]; L^2(\Omega )^2 )$-norm of the error is of order $\varepsilon$. Similarly, we estimate the difference between the fluid pressure and its correction in $C ( [0,T]; L^1(\Omega ) )$ as $C \varepsilon$.References
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Additional Information
- Andro Mikelić
- Affiliation: Equipe d’Analyse Numérique Lyon-Saint Etienne, UMR 5585 CNRS, Université Lyon 1, 43 boulevard du 11 novembre 1918, 69622 Villeurbanne Cedex, France
- Email: andro@iris.univ-lyon1.fr
- Laetitia Paoli
- Affiliation: Equipe d’Analyse Numérique Lyon-Saint Etienne, UMR 5585 CNRS, Université de Saint Etienne, 23 rue du Docteur P.Michelon, 42023 Saint Etienne Cedex, France
- MR Author ID: 339181
- Email: paoli@anumsun1.univ-st-etienne.fr
- Received by editor(s): September 15, 1997
- Published electronically: February 26, 1999
- Communicated by: James Glimm
- © Copyright 1999 American Mathematical Society
- Journal: Proc. Amer. Math. Soc. 127 (1999), 2019-2028
- MSC (1991): Primary 35B27, 76C05, 76S05
- DOI: https://doi.org/10.1090/S0002-9939-99-05062-5
- MathSciNet review: 1626446