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We prove global existence of a nonnegative weak solution to a degenerate parabolic system, which models the spreading of insoluble surfactant on a thin liquid film.

偏微分方程分析 · 数学 2010-07-26 Joachim Escher , Matthieu Hillairet , Philippe Laurencot , Christoph Walker

We prove global existence of nonnegative weak solutions for a strongly coupled, fourth order degenerate parabolic system governing the motion of two thin fluid layers in a porous medium when capillarity is the sole driving mechanism.

偏微分方程分析 · 数学 2012-07-24 Bogdan-Vasile Matioc

We establish the existence of non-negative global weak solutions for a strongly couple degenerated parabolic system which was obtained as an approximation of the two-phase Stokes problem driven solely by capillary forces. Moreover, the…

偏微分方程分析 · 数学 2012-10-25 Joachim Escher , Bogdan-Vasile Matioc

In this paper, we consider unsaturated poroelasticity, i.e., coupled hydro-mechanical processes in unsaturated porous media, modeled by a non-linear extension of Biot's quasi-static consolidation model. The coupled, elliptic-parabolic…

偏微分方程分析 · 数学 2019-09-17 Jakub Wiktor Both , Iuliu Sorin Pop , Ivan Yotov

Of concern is the study of a system of three equations describing the motion of a viscous complete wetting two-phase thin film endowed with a layer of insoluble surfactant on the surface of the upper fluid under the effects of capillary…

偏微分方程分析 · 数学 2016-08-30 Gabriele Bruell

Thermodynamically consistent models for two-phase flow in porous media have attracted significant attention in recent years. In this paper, we prove the existence, uniqueness and regularity of the weak solution to such a recent model…

偏微分方程分析 · 数学 2026-02-05 Huangxin Chen , Jisheng Kou , Haitao Leng , Shuyu Sun , Hai Zhao

We prove existence of weak solutions to a diffuse interface model describing the flow of a fluid through a deformable porous medium consisting of two phases. The system non-linearly couples Biot's equations for poroelasticity, including…

偏微分方程分析 · 数学 2024-08-27 Helmut Abels , Harald Garcke , Jonas Haselböck

We investigate systems of degenerate parabolic equations idealizing reactive solute transport in porous media. Taking advantage of the inherent structure of the system that allows to deduce a scalar Generalized Porous Medium Equation for…

偏微分方程分析 · 数学 2014-12-19 Tuomo Kuusi , Léonard Monsaingeon , Juha Videman

In this work we study a degenerate pseudo-parabolic system with cross diffusion describing the evolution of the densities of an unsaturated two-phase flow mixture with dynamic capillary pressure in porous medium with saturation-dependent…

偏微分方程分析 · 数学 2019-05-27 Esther S. Daus , Josipa-Pina Milišić , Nicola Zamponi

In this contribution we prove the existence of weak solutions to degenerate parabolic systems arising from the coupled moisture movement, transport of dissolved species and heat transfer through partially saturated porous materials.…

偏微分方程分析 · 数学 2017-01-03 Michal Beneš , Lukáš Krupička

In this paper we prove the existence of weak solutions to degenerate parabolic systems arising from the fully coupled moisture movement, solute transport of dissolved species and heat transfer through porous materials. Physically relevant…

偏微分方程分析 · 数学 2017-07-24 Michal Beneš , Igor Pažanin

We study a class of fourth-order quasilinear degenerate parabolic equations under both time-and space-dependent and time-and space-independent forces, modeling non-Newtonian thin-film flow over a solid surface in the "complete wetting"…

偏微分方程分析 · 数学 2026-01-06 Jinhong Zhao , Bin Guo

This paper studies a fourth-order, nonlinear, doubly-degenerate parabolic equation derived from the thin film equation in spherical geometry. A regularization method is used to study the equation and several useful estimates are obtained.…

偏微分方程分析 · 数学 2017-03-02 Di Kang , Tharathep Sangsawang , Jialun Zhang

We consider a simplified model of a two-phase flow through a heterogeneous porous medium, in which the convection is neglected. This leads to a nonlinear degenerate parabolic problem in a domain shared in an arbitrary finite number of…

偏微分方程分析 · 数学 2010-07-26 Clément Cancès , Thierry Gallouet , Alessio Porretta

Multiphase poromechanics describes the evolution of multiphase flow in deformable porous media. Mathematical models for such multiphysics system are inheritely nonlinear, potentially degenerate and fully coupled systems of partial…

偏微分方程分析 · 数学 2023-12-05 Jakub Wiktor Both , Clément Cancès

We study the dynamic behaviour of solutions to a fourth-order quasilinear degenerate parabolic equation for large times arising in fluid dynamical applications. The degeneracy occurs both with respect to the unknown and with respect to the…

偏微分方程分析 · 数学 2024-02-28 Christina Lienstromberg , Juan J. L. Velázquez

The existence of global nonnegative weak solutions is proved for coupled one-dimensional lubrication systems that describe the evolution of nanoscopic bilayer thin polymer films that take account of Navier-slip or no-slip conditions at both…

偏微分方程分析 · 数学 2012-11-12 Sebastian Jachalski , Georgy Kitavtsev , Roman Taranets

We consider a simple nonlinear hyperbolic system modeling the flow of an inviscid fluid. The model includes as state variable the mass density fraction of the vapor in the fluid and then phase transitions can be taken into consideration;…

偏微分方程分析 · 数学 2014-08-27 Debora Amadori , Paolo Baiti , Andrea Corli , Edda Dal Santo

The present paper is concerned with the analysis of two strongly coupled systems of degenerate parabolic partial differential equations arising in multiphase thin film flows. In particular, we consider the two-phase thin film Muskat problem…

偏微分方程分析 · 数学 2019-06-26 Gabriele Bruell , Rafael Granero-Belinchón

A doubly degenerate parabolic equation in non-divergent form with variable growth is investigated in this paper. In suitable spaces, we prove the existence of weak solutions of the equation for cases $1\leq m < 2$ and $m\geq 2$ in different…

偏微分方程分析 · 数学 2024-04-24 Jingfeng Shao , Zhichang Guo , Zhongxiang Zhou
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