Local Well-Posedness of the Cahn-Hilliard-Biot System

Fuente: arXiv
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Autori principali: Abels, Helmut, Haselböck, Jonas
Natura: Preprint
Pubblicazione: 2025
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author Abels, Helmut
Haselböck, Jonas
author_facet Abels, Helmut
Haselböck, Jonas
contents We show short-time well-posedness of 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 phase-field dependent material properties, with the Cahn-Hilliard equation to model the evolution of the solid, where we further distinguish between the absence and presence of a visco-elastic term of Kelvin-Voigt type. While both problems will be reduced to a fixed-point equation that can be solved using maximal regularity theory along with a contraction argument, the first case relies on a semigroup approach over suitable Hilbert spaces, whereas treating the second case under minimal assumptions with respect to spatial regularity necessitates the application of Banach scales.
format Preprint
id arxiv_https___arxiv_org_abs_2508_17893
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Local Well-Posedness of the Cahn-Hilliard-Biot System
Abels, Helmut
Haselböck, Jonas
Analysis of PDEs
35A01, 35A02, 35K41, 74B10, 76S05
We show short-time well-posedness of 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 phase-field dependent material properties, with the Cahn-Hilliard equation to model the evolution of the solid, where we further distinguish between the absence and presence of a visco-elastic term of Kelvin-Voigt type. While both problems will be reduced to a fixed-point equation that can be solved using maximal regularity theory along with a contraction argument, the first case relies on a semigroup approach over suitable Hilbert spaces, whereas treating the second case under minimal assumptions with respect to spatial regularity necessitates the application of Banach scales.
title Local Well-Posedness of the Cahn-Hilliard-Biot System
topic Analysis of PDEs
35A01, 35A02, 35K41, 74B10, 76S05
url https://arxiv.org/abs/2508.17893