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We prove the existence and uniqueness of solutions for a family of nonlinear parabolic systems related to phase field models taking in account variations of temperature and the possibility of a general class of nonlinearities. The present…

偏微分方程分析 · 数学 2015-05-13 Anderson L. A. de Araujo , José L. Boldrini , Bianca M. R. Calsavara

In this paper the study of a non-local Cahn-Hilliard-type singularly perturbed family of functionals is undertaken, generalizing known results by Alberti & Bellettini. The kernels considered include those leading to Gagliardo seminorms for…

偏微分方程分析 · 数学 2024-10-28 Wes Caldwell

In this paper, we consider numerical approximations for the viscous Cahn-Hilliard equation with hyperbolic relaxation. This type of equations processes energy-dissipative structure. The main challenge in solving such a diffusive system…

数值分析 · 数学 2017-12-18 Xiaofeng Yang , Jia Zhao

The Functionalized Cahn-Hilliard equation has been proposed as a model for the interfacial energy of phase-separated mixtures of amphiphilic molecules. We study the existence of a nonnegative weak solutions of a gradient flow of the…

偏微分方程分析 · 数学 2023-10-09 Shibin Dai , Qiang Liu , Toai Luong , Keith Promislow

We consider a class of Cahn-Hilliard equation that characterizes phase separation phenomena of binary mixtures in a bounded domain $\Omega \subset \mathbb{R}^d$ $(d\in \{2,3\})$ with non-permeable boundary. The equations in the bulk are…

偏微分方程分析 · 数学 2024-06-03 Maoyin Lv , Hao Wu

In this study, a phase-field lattice Boltzmann model based on the Allen-Cahn equation with a filtered collision operator and high-order corrections in the equilibrium distribution functions is presented. Here we show that in addition to…

流体动力学 · 物理学 2020-01-08 Hiroshi Otomo , Raoyang Zhang , Hudong Chen

Hybrid particle-field molecular dynamics combines standard molecular potentials with density-field models into a computationally efficient methodology that is well-adapted for the study of mesoscale soft matter systems. Here, we introduce a…

计算物理 · 物理学 2020-07-06 Sigbjørn Løland Bore , Michele Cascella

We present a scalable approach to computing nonlinear balancing energy functions for control-affine systems with polynomial nonlinearities. Al'brekht's power-series method is used to solve the Hamilton-Jacobi-Bellman equations for…

最优化与控制 · 数学 2024-08-20 Nicholas A. Corbin , Boris Kramer

Recently, we have derived an effective Cahn-Hilliard equation for the phase separation dynamics of active Brownian particles by performing a weakly non-linear analysis of the effective hydrodynamic equations for density and polarization…

统计力学 · 物理学 2015-06-15 Thomas Speck , Andreas M. Menzel , Julian Bialké , Hartmut Löwen

This article is concerned with the internal feedback stabilization of the phase field system of Cahn-Hilliard type, modeling the phase separation in a binary mixture. Under suitable assumptions on an arbitrarily fixed stationary solution,…

偏微分方程分析 · 数学 2016-10-24 Viorel Barbu , Pierluigi Colli , Gianni Gilardi , Gabriela Marinoschi

In this paper, by employing fixed-point methods, we obtain the existence and uniqueness results for the nonlinear implicit fractional differential equations in Banach spaces. Further, we obtain the uniqueness, dependence of the solution on…

动力系统 · 数学 2020-07-20 Sagar T. Sutar , Kishor D. Kucche

We study a Navier-Stokes/Cahn-Hilliard system modeling the evolution of a compressible binary mixture of viscous fluids undergoing phase separation. The novelty of this work is a free energy potential including the physically relevant…

偏微分方程分析 · 数学 2025-06-10 Danica Basarić , Andrea Giorgini

We study analytically a continuum model for phase-separation in binary polymer blends based on the Flory-Huggins-De Gennes free energy, by means of the self-consistent large-$n$ limit approach. The model is solved for values of the…

统计力学 · 物理学 2009-10-30 Claudio Castellano , Federico Corberi

We consider a diffuse interface model describing a ternary system constituted by a conductive diblock copolymer and a homopolymer acting as solvent. The resulting dynamics is modeled by two Cahn--Hilliard--Oono equations for the copolymer…

偏微分方程分析 · 数学 2024-11-07 Helmut Abels , Andrea Di Primio , Harald Garcke

In the exact Kohn-Sham density-functional theory (DFT), the total energy versus the number of electrons is a series of linear segments between integer points. However, commonly used approximate density functionals produce total energies…

材料科学 · 物理学 2013-04-03 Eli Kraisler , Leeor Kronik

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

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

In this paper the well-posedness of some degenerate parabolic equations with a dynamic boundary condition is considered. To characterize the target degenerate parabolic equation from the Cahn-Hilliard system, the nonlinear term coming from…

偏微分方程分析 · 数学 2016-08-30 Takeshi Fukao

We study the energy levels of a single particle in a homogeneous magnetic field and in an axially symmetric external potential. For potentials that are superharmonic off the central axis, we find a general ``pseudoconcave'' ordering of the…

数学物理 · 物理学 2007-05-23 Bernhard Baumgartner , Robert Seiringer

We investigate a new phase field model for representing non-oriented interfaces, approximating their area and simulating their area-minimizing flow. Our contribution is related to the approach proposed in arXiv:2105.09627 that involves ad…

最优化与控制 · 数学 2025-07-03 Elie Bretin , Antonin Chambolle , Simon Masnou
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