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We consider numerical approximations and error analysis for the Cahn-Hilliard equation with reaction rate dependent dynamic boundary conditions (P. Knopf et. al., arXiv, 2020). Based on the stabilized linearly implicit approach, a…

数值分析 · 数学 2021-04-22 Xuelian Bao , Hui Zhang

We prove global existence and uniqueness of solutions to a Cahn-Hilliard system with nonlinear viscosity terms and nonlinear dynamic boundary conditions. The problem is highly nonlinear, characterized by four nonlinearities and two separate…

偏微分方程分析 · 数学 2020-01-07 Luca Scarpa

The global-in-time existence of weak solutions to a degenerate Cahn-Hilliard cross-diffusion system with singular potential in a bounded domain with no-flux boundary conditions is proved. The model consists of two coupled parabolic…

偏微分方程分析 · 数学 2024-01-11 Ansgar Jüngel , Yue Li

The stationary Navier--Stokes--Cahn--Hilliard equations are considered, governing the motion of a compressible, two-phase fluid mixture with a diffuse interface. The free energy density in this paper has a singular logarithmic…

偏微分方程分析 · 数学 2026-05-05 Zhilei Liang , Sen Liu , Jiangyu Shuai , Dehua Wang

The Cahn--Hilliard equation with anisotropic energy contributions frequently appears in many physical systems. Systematic analytical results for the case with the relevant logarithmic free energy have been missing so far. We close this gap…

偏微分方程分析 · 数学 2023-12-08 Harald Garcke , Patrik Knopf , Julia Wittmann

We consider a diffuse-interface model for two-phase incompressible viscous flows with a soluble surfactant in a bounded porous medium. This hydrodynamic system consists of a Darcy--Forchheimer equation for the seepage velocity…

偏微分方程分析 · 数学 2026-03-24 Maurizio Grasselli , Bohan Ouyang , Andrea Poiatti , Hao Wu

We consider the existence of suitable weak solutions to the Cahn-Hilliard equation with a non-constant (degenerate) mobility on a class of evolving surfaces. We also show weak-strong uniqueness for the case of a positive mobility function,…

偏微分方程分析 · 数学 2025-08-04 Charles M. Elliott , Thomas Sales

Based on relative energy estimates, we study the stability of solutions to the Cahn-Hilliard equation with concentration dependent mobility with respect to perturbations. As a by-product of our analysis, we obtain a weak-strong uniqueness…

数值分析 · 数学 2021-02-12 Aaron Brunk , Herbert Egger , Oliver Habrich , Maria Lukacova-Medvidova

This paper is concerned with a boundary control problem for the Cahn--Hilliard equation coupled with dynamic boundary conditions. In order to handle the control problem, we restrict our analysis to the case of regular potentials defined on…

偏微分方程分析 · 数学 2021-01-20 Pierluigi Colli , Andrea Signori

This paper presents an existence result for the anisotropic Cahn--Hilliard equation characterized by a potentially concentration-dependent degenerate mobility taking into account an anisotropic energy. The model allows for the degeneracy of…

偏微分方程分析 · 数学 2025-02-20 Harald Garcke , Patrik Knopf , Andrea Signori

In this paper, we derive the time-fractional Cahn-Hilliard equation from continuum mixture theory with a modification of Fick's law of diffusion. This model describes the process of phase separation with nonlocal memory effects. We analyze…

偏微分方程分析 · 数学 2022-10-10 Marvin Fritz , Mabel L. Rajendran , Barbara Wohlmuth

In this paper, we theoretically and numerically study the minimizers for the Cahn-Hilliard energy with the Flory-Huggins potential under the strong anchoring condition, i.e., the Dirichlet boundary condition. We reveal bifurcation phenomena…

偏微分方程分析 · 数学 2026-04-22 Shibin Dai , Abba Ramadan , Natasha Sharma

Local and global well-posedness, along with finite time blow-up, are investigated for the following Hardy-H\'enon equation involving a quasilinear degenerate diffusion and a space-dependent superlinear source featuring a singular potential…

偏微分方程分析 · 数学 2025-03-06 Razvan Gabriel Iagar , Philippe Laurençot

The existence problem for {C}ahn--{H}illiard system with dynamic boundary conditions and time periodic conditions is discussed. We apply the abstract theory of evolution equations by using viscosity approach and the Schauder fixed point…

偏微分方程分析 · 数学 2017-12-12 Taishi Motoda

In this paper we study optimal control problem for non local Cahn-Hilliard-Brinkman system which models phase separation of binary fluids in porous media. We consider the system in two dimensional bounded domain with regular potential. We…

偏微分方程分析 · 数学 2019-11-11 Sheetal Dharmatti , Mahendranath PL N

This work explores the solvability of a sixth-order Cahn--Hilliard equation with an inertial term, which serves as a relaxation of a higher-order variant of the classical Cahn--Hilliard equation. The equation includes a source term that…

偏微分方程分析 · 数学 2025-04-14 Pierluigi Colli , Gianni Gilardi

In the present work, we address a class of Cahn-Hilliard equations characterized by a nonlinear diffusive dynamics and possibly containing an additional sixth order term. This model describes the separation properties of oil-water mixtures,…

偏微分方程分析 · 数学 2012-06-26 Giulio Schimperna , Irena Pawlow

The Cahn-Hilliard equation is related with a number of interesting physical phenomena like the spinodal decomposition, phase separation and phase ordering dynamics. On the other hand this equation is very stiff an the difficulty to solve it…

统计力学 · 物理学 2009-11-10 E. V. L. de Mello , Otton Teixeira da Silveira Filho

Phase-field models are a popular choice in computational physics to describe complex dynamics of substances with multiple phases and are widely used in various applications. We present nonlocal non-isothermal phase-field models of…

偏微分方程分析 · 数学 2023-10-13 Olena Burkovska

In this paper we devise and analyze a mixed finite element method for a modified Cahn-Hilliard equation coupled with a non-steady Darcy-Stokes flow that models phase separation and coupled fluid flow in immiscible binary fluids and diblock…

数值分析 · 数学 2013-12-24 Amanda E. Diegel , Xiaobing H. Feng , Steven M. Wise