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We study the well-posedness of a modified degenerate Cahn-Hilliard type model for surface diffusion. With degenerate phase-dependent diffusion mobility and additional stabilizing function, this model is able to give the correct sharp…

偏微分方程分析 · 数学 2022-04-19 Xiaohua Niu , Yang Xiang , Xiaodong Yan

In this paper, we study initial-boundary value problems for the Cahn--Hilliard system with convection and nonconvex potential, where dynamic boundary conditions are assumed for both the associated order parameter and the corresponding…

最优化与控制 · 数学 2018-03-15 Gianni Gilardi , Jürgen Sprekels

We prove existence of weak solutions and weak-strong uniqueness for a mathematical model which couples the evolution of a phase-parameter $\varphi$ satisfying a Cahn-Hilliard type relation with the one of an additional variable $\sigma$…

偏微分方程分析 · 数学 2026-04-21 Robert Lasarzik , Elisabetta Rocca , Giulio Schimperna

We study the long-time dynamics of a bulk-surface convective Cahn--Hilliard system describing phase separation processes with bulk-surface interaction. The presence of convection terms leads to a non-autonomous dynamical system and prevents…

偏微分方程分析 · 数学 2026-03-12 Patrik Knopf , Andrea Poiatti , Jonas Stange , Sema Yayla

The Cahn-Hilliard equation has a wide range of applications in many areas of physics and chemistry. To describe the short-range interaction between the solution and the boundary, scientists have constructed dynamical boundary conditions by…

数值分析 · 数学 2025-11-05 Yunzhuo Guo , Cheng Wang , Zhengru Zhang

We describe a functional framework suitable to the analysis of the Cahn-Hilliard equation on an evolving surface whose evolution is assumed to be given \textit{a priori}. The model is derived from balance laws for an order parameter with an…

偏微分方程分析 · 数学 2021-06-04 Diogo Caetano , Charles M. Elliott

We study the well-posedness of a coupled Cahn-Hilliard-Stokes-Darcy system which is a diffuse-interface model for essentially immiscible two phase incompressible flows with matched density in a karstic geometry. Existence of finite energy…

偏微分方程分析 · 数学 2014-05-22 Daozhi Han , Xiaoming Wang , Hao WU

In the recent paper `Well-posedness and regularity for a generalized fractional Cahn-Hilliard system' (arXiv:1804.11290) by the same authors, general well-posedness results have been established for a a class of evolutionary systems of two…

偏微分方程分析 · 数学 2018-10-23 Pierluigi Colli , Gianni Gilardi , Jürgen Sprekels

We propose a new class of phase field models coupled to viscoelasticity with large deformations, obtained from a diffuse interface mixture model composed by a phase with elastic properties and a liquid phase. The model is formulated in the…

偏微分方程分析 · 数学 2022-04-12 Abramo Agosti , Pierluigi Colli , Harald Garcke , Elisabetta Rocca

The Cahn--Hilliard equation is one of the most common models to describe phase separation processes of a mixture of two materials. For a better description of short-range interactions between the material and the boundary, various dynamic…

偏微分方程分析 · 数学 2021-04-27 Patrik Knopf , Kei Fong Lam , Chun Liu , Stefan Metzger

This paper concerns a diffuse interface model for the flow of two incompressible viscoelastic fluids in a bounded domain. More specifically, the fluids are assumed to be macroscopically immiscible, but with a small transition region, where…

偏微分方程分析 · 数学 2024-11-15 Yadong Liu , Dennis Trautwein

This paper is concerned with the large time behavior of the Cauchy problem for Navier-Stokes/Allen-Cahn system describing the interface motion of immiscible two-phase flow in 3-D. The existence and uniqueness of global solutions and the…

偏微分方程分析 · 数学 2021-10-28 Yazhou Chen , Hakho Hong , Xiaoding Shi

In this paper, we study a hyperbolic relaxation of the viscous Cahn--Hilliard system with zero Neumann boundary conditions. In fact, we consider a relaxation term involving the second time derivative of the chemical potential in the first…

偏微分方程分析 · 数学 2024-10-15 Pierluigi Colli , Jürgen Sprekels

We consider a diffuse interface model for incompressible isothermal mixtures of two immiscible fluids with matched constant densities. This model consists of the Navier-Stokes system coupled with a convective nonlocal Cahn-Hilliard equation…

偏微分方程分析 · 数学 2014-04-16 Sergio Frigeri , Maurizio Grasselli , Elisabetta Rocca

The Cahn-Hilliard/Allen-Cahn equation with noise is a simplified mean field model of stochastic microscopic dynamics associated with adsorption and desorption-spin flip mechanisms in the context of surface processes. For such an equation we…

概率论 · 数学 2022-10-13 Dimitra C. Antonopoulou , Geogia Karali , Annie Millet

A rigorous proof is given for the convergence of the solutions of a viscous Cahn-Hilliard system to the solution of the regularized version of the forward-backward parabolic equation, as the coefficient of the diffusive term goes to 0.…

偏微分方程分析 · 数学 2017-05-18 Pierluigi Colli , Luca Scarpa

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

We study the Cahn-Hilliard equation with non-degenerate concentration-dependent mobility and logarithmic potential in two dimensions. We show that any weak solution is unique, exhibits propagation of uniform-in-time regularity, and…

偏微分方程分析 · 数学 2025-03-25 Monica Conti , Pietro Galimberti , Stefania Gatti , Andrea Giorgini

A phase field model which describes the formation of protein-RNA complexes subject to phase segregation is analyzed. A single protein, two RNA species, and two complexes are considered. Protein and RNA species are governed by coupled…

偏微分方程分析 · 数学 2023-02-08 Maurizio Grasselli , Luca Scarpa , Andrea Signori

This paper investigates a Cahn-Hilliard-Swift-Hohenberg system, focusing on a three-species chemical mixture subject to physical constraints on volume fractions. The resulting system leads to complex patterns involving a separation into…

偏微分方程分析 · 数学 2024-10-02 Harald Garcke , Kei Fong Lam , Robert Nürnberg , Andrea Signori