Asymptotic Modeling of the Thin Film Flow with a Pressure-Dependent Viscosity

We study the lubrication process with incompressible fluid taking into account the dependence of the viscosity on the pressure. Assuming that the viscosity-pressure relation is given by the well-known Barus law, we derive an effective model using asymptotic analysis with respect to the film thicknes...

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Main Authors: Eduard Marušić-Paloka, Igor Pažanin
Format: Article
Language:English
Published: Wiley 2014-01-01
Series:Journal of Applied Mathematics
Online Access:http://dx.doi.org/10.1155/2014/217174
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author Eduard Marušić-Paloka
Igor Pažanin
author_facet Eduard Marušić-Paloka
Igor Pažanin
author_sort Eduard Marušić-Paloka
collection DOAJ
description We study the lubrication process with incompressible fluid taking into account the dependence of the viscosity on the pressure. Assuming that the viscosity-pressure relation is given by the well-known Barus law, we derive an effective model using asymptotic analysis with respect to the film thickness. The key idea is to conveniently transform the governing system and then apply two-scale expansion technique.
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spelling doaj-art-2a99bf224e274fcf839e5d43b1a39c9a2025-08-20T02:04:09ZengWileyJournal of Applied Mathematics1110-757X1687-00422014-01-01201410.1155/2014/217174217174Asymptotic Modeling of the Thin Film Flow with a Pressure-Dependent ViscosityEduard Marušić-Paloka0Igor Pažanin1Department of Mathematics, Faculty of Science, University of Zagreb, Bijenička 30, 10000 Zagreb, CroatiaDepartment of Mathematics, Faculty of Science, University of Zagreb, Bijenička 30, 10000 Zagreb, CroatiaWe study the lubrication process with incompressible fluid taking into account the dependence of the viscosity on the pressure. Assuming that the viscosity-pressure relation is given by the well-known Barus law, we derive an effective model using asymptotic analysis with respect to the film thickness. The key idea is to conveniently transform the governing system and then apply two-scale expansion technique.http://dx.doi.org/10.1155/2014/217174
spellingShingle Eduard Marušić-Paloka
Igor Pažanin
Asymptotic Modeling of the Thin Film Flow with a Pressure-Dependent Viscosity
Journal of Applied Mathematics
title Asymptotic Modeling of the Thin Film Flow with a Pressure-Dependent Viscosity
title_full Asymptotic Modeling of the Thin Film Flow with a Pressure-Dependent Viscosity
title_fullStr Asymptotic Modeling of the Thin Film Flow with a Pressure-Dependent Viscosity
title_full_unstemmed Asymptotic Modeling of the Thin Film Flow with a Pressure-Dependent Viscosity
title_short Asymptotic Modeling of the Thin Film Flow with a Pressure-Dependent Viscosity
title_sort asymptotic modeling of the thin film flow with a pressure dependent viscosity
url http://dx.doi.org/10.1155/2014/217174
work_keys_str_mv AT eduardmarusicpaloka asymptoticmodelingofthethinfilmflowwithapressuredependentviscosity
AT igorpazanin asymptoticmodelingofthethinfilmflowwithapressuredependentviscosity