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We study the two-dimensional multiphase Muskat problem describing the motion of three immiscible fluids with equal viscosities in a vertical homogeneous porous medium identified with $\mathbb{R}^2$ under the effect of gravity. We first…

Analysis of PDEs · Mathematics 2024-04-26 Jonas Bierler , Bogdan-Vasile Matioc

We study the Muskat problem, which describes the motion of two immiscible, incompressible fluids in a homogeneous porous medium occupying the full space ${\mathbb{R}^{N+1}}$, $N \geq 2$, driven by gravity. The interface between the fluids…

Analysis of PDEs · Mathematics 2026-02-11 Bogdan-Vasile Matioc , Georg Prokert

We consider the Muskat problem describing the viscous displacement in a two-phase fluid system located in an unbounded two-dimensional porous medium or Hele-Shaw cell. After formulating the mathematical model as an evolution problem for the…

Analysis of PDEs · Mathematics 2017-11-17 Bogdan-Vasile Matioc

In this paper we consider the evolution of two fluid phases in a porous medium. The fluids are separated from each other and also the wetting phase from air by interfaces which evolve in time. We reduce the problem to an abstract evolution…

Analysis of PDEs · Mathematics 2010-05-17 Joachim Escher , Anca-Voichita Matioc , Bogdan-Vasile Matioc

We study the two-dimensional Muskat problem in a horizontally periodic setting and for fluids with arbitrary densities and viscosities. We show that in the presence of surface tension effects the Muskat problem is a quasilinear parabolic…

Analysis of PDEs · Mathematics 2018-04-30 Bogdan-Vasile Matioc

We study the Muskat problem for one fluid or two fluids, with or without viscosity jump, with or without rigid boundaries, and in arbitrary space dimension $d$ of the interface. The Muskat problem is scaling invariant in the Sobolev space…

Analysis of PDEs · Mathematics 2020-03-18 Huy Q. Nguyen , Benoît Pausader

We study the Muskat problem describing the vertical motion of two immiscible fluids in a two-dimensional homogeneous porous medium in an $L_p$-setting with $p\in(1,\infty)$. The Sobolev space $W^s_p(\mathbb{R})$ with $s=1+1/p$ is a critical…

Analysis of PDEs · Mathematics 2024-04-26 Helmut Abels , Bogdan-Vasile Matioc

In this paper we consider the Muskat problem describing the motion of two unbounded immiscible fluid layers with equal viscosities in vertical or horizontal two-dimensional geometries. We first prove that the mathematical model can be…

Analysis of PDEs · Mathematics 2018-10-10 Bogdan-Vasile Matioc

The Muskat problem involves filtration of two incompressible fluids throughout a porous medium. In this paper we shall discuss in 3-D the relevance of the Rayleigh-Taylor condition, and the topology of the initial interface, in order to…

Analysis of PDEs · Mathematics 2010-05-20 Antonio Cordoba , Diego Cordoba , Francisco Gancedo

The Muskat problem models the filtration of two incompressible immiscible fluids of different characteristics in porous media. In this paper, we consider both the 2D and 3D setting of two fluids of different constant densities and different…

Analysis of PDEs · Mathematics 2019-05-02 Francisco Gancedo , Eduardo Garcia-Juarez , Neel Patel , Robert M. Strain

The Muskat problem, in its general setting, concerns the interface evolution between two incompressible fluids of different densities and viscosities in porous media. The interface motion is driven by gravity and capillarity forces, where…

Analysis of PDEs · Mathematics 2021-02-24 Patrick T. Flynn , Huy Q. Nguyen

The present paper is devoted to the joint motion of two immiscible incompressible liquids in porous media. The liquids have different densities and initially separated by a surface of strong discontinuity (free boundary). We discuss the…

Differential Geometry · Mathematics 2011-10-10 O. V. Galtsev , A. M. Meirmanov

We study the Rayleigh-Taylor problem for two incompressible, immiscible, viscous magnetohydrodynamic (MHD) flows, with zero resistivity, surface tension (or without surface tenstion) and special initial magnetic field, evolving with a free…

General Mathematics · Mathematics 2012-05-02 Fei Jiang , Song Jiang , Yanjin Wang

We consider the Muskat problem with surface tension for one fluid or two fluids, with or without viscosity jump, with infinite depth or Lipschitz rigid boundaries, and in arbitrary dimension $d$ of the interface. The problem is nonlocal,…

Analysis of PDEs · Mathematics 2020-07-23 Huy Q. Nguyen

We study the dynamics of the interface between two incompressible fluids in a two-dimensional porous medium whose flow is modeled by the Muskat equations. For the two-phase Muskat problem, we establish global well-posedness and decay to…

Analysis of PDEs · Mathematics 2016-08-10 C. H. Arthur Cheng , Rafael Granero-Belinchón , Steve Shkoller

We study the Muskat problem describing the spatially periodic motion of two fluids with equal viscosities under the effect of gravity in a vertical unbounded two-dimensional geometry. We first prove that the classical formulation of the…

Analysis of PDEs · Mathematics 2017-06-29 Anca-Voichita Matioc , Bogdan-Vasile Matioc

In this paper, we study the dynamics of a two-dimensional viscous fluid evolving through a porous medium or a Hele-Shaw cell, driven by gravity and surface tension. A key feature of this study is that the fluid is confined within a vessel…

Analysis of PDEs · Mathematics 2026-04-09 Edoardo Bocchi , Ángel Castro , Francisco Gancedo

The free boundary problem for a two-dimensional fluid filtered in porous media is studied. This is known as the one-phase Muskat problem and is mathematically equivalent to the vertical Hele-Shaw problem driven by gravity force. We prove…

Analysis of PDEs · Mathematics 2021-03-05 Hongjie Dong , Francisco Gancedo , Huy Q. Nguyen

This paper is concerned with the long time dynamics of the free boundary of a Darcy fluid in three space dimensions, also known as the one-phase Muskat problem. The dynamics of the free boundary is governed by a nonlocal fully nonlinear…

Analysis of PDEs · Mathematics 2023-08-29 H. Dong , F. Gancedo. H. Q. Nguyen

We address the well-posedness of the Muskat problem in a periodic geometry and in a setting which allows us to consider general initial and boundary data, gravity effects, as well as surface tension effects. In the absence of surface…

Analysis of PDEs · Mathematics 2018-05-01 Joachim Escher , Bogdan-Vasile Matioc , Christoph Walker
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