中文
相关论文

相关论文: Sharp-interface limits of a phase-field model with…

200 篇论文

We construct gradient structures for free boundary problems with nonlinear elasticity and study the impact of moving contact lines. In this context, we numerically analyze how phase-field models converge to certain sharp-interface limits…

偏微分方程分析 · 数学 2024-06-26 Leonie Schmeller , Dirk Peschka

In this paper, the sharp interface limit for the compressible non-isentropic Navier-Stokes/Allen-Cahn system is derived by the method of matched asymptotic expansion. We show that the leading order problem satisfies the compressible…

偏微分方程分析 · 数学 2021-02-09 Chen Yazhou , He Qiaolin , Shi Xiaoding , Wang Xiaoping

The use of continuum phase-field models to describe the motion of well-defined interfaces is discussed for a class of phenomena, that includes order/disorder transitions, spinodal decomposition and Ostwald ripening, dendritic growth, and…

软凝聚态物质 · 物理学 2009-10-31 K. R. Elder , Martin Grant , Nikolas Provatas , J. M. Kosterlitz

We investigate the sharp interface limit of a diffuse interface system that couples the Allen--Cahn equation with the instationary Navier--Stokes system in a bounded domain in $\mathbb{R}^d$ with $d \in \{2,3\}$. This model is used to…

偏微分方程分析 · 数学 2022-05-17 Sebastian Hensel , Yuning Liu

We consider a system of two coupled parabolic PDEs introduced in [1] to model motility of eukaryotic cells. We study the asymptotic behavior of solutions in the limit of a small parameter related to the width of the interface in phase field…

偏微分方程分析 · 数学 2016-02-05 Leonid Berlyand , Mykhailo Potomkin , Volodymyr Rybalko

We consider the sharp interface limit of a Navier-Stokes/Allen Cahn equation in a bounded smooth domain in two space dimensions, in the case of vanishing mobility $m_\varepsilon=\sqrt{\varepsilon}$, where the small parameter $\varepsilon>0$…

偏微分方程分析 · 数学 2023-04-28 Helmut Abels , Mingwen Fei , Maximilian Moser

In this letter, we derive the sharp-interface limit of the Cahn-Hilliard-Biot equations using formal matched asymptotic expansions. We find that in each sub-domain, the quasi-static Biot equations are obtained with domain-specific material…

偏微分方程分析 · 数学 2024-12-06 Erlend Storvik , Carina Bringedal

We investigate the limiting behavior of the Navier-Stokes-Cahn-Hilliard model for binary-fluid flows as the diffuse-interface thickness passes to zero, in the presence of fluid-fluid-solid contact lines. Allowing for motion of such contact…

数值分析 · 数学 2024-07-09 T. H. B. Demont , S. K. F. Stoter , C. Diddens , E. H. van Brummelen

We consider the numerical approximations of a two-phase hydrodynamics coupled phase-field model that incorporates the variable densities, viscosities and moving contact line boundary conditions. The model is a nonlinear, coupled system that…

数值分析 · 数学 2017-02-15 Haijun Yu , Xiaofeng Yang

We discuss the sharp interface limit of a coupled Navier-Stokes/Allen-Cahn system in a two dimensional, bounded and smooth domain, when a parameter $\varepsilon>0$ that is proportional to the thickness of the diffuse interface tends to zero…

偏微分方程分析 · 数学 2023-03-09 Helmut Abels , Mingwen Fei

We propose an efficient numerical method for the simulation of multi-phase flows with moving contact lines in three dimensions. The mathematical model consists of the incompressible Navier-Stokes equations for the two immiscible fluids with…

流体动力学 · 物理学 2023-02-08 Quan Zhao , Shixin Xu , Weiqing Ren

The ``no-slip'' boundary condition, i.e., zero fluid velocity relative to the solid at the fluid-solid interface, has been very successful in describing many macroscopic flows. A problem of principle arises when the no-slip boundary…

软凝聚态物质 · 物理学 2007-05-23 Tiezheng Qian , Xiao-Ping Wang , Ping Sheng

In this article, we study the behavior of the Abels-Garcke-Gr\"un Navier-Stokes-Cahn-Hilliard diffuse-interface model for binary-fluid flows, as the diffuse-interface thickness passes to zero. We consider this so-called sharp-interface…

数值分析 · 数学 2023-01-05 T. H. B. Demont , S. K. F. Stoter , E. H. van Brummelen

A solid-liquid-gas moving contact line is considered through a diffuse-interface model with the classical boundary condition of no-slip at the solid surface. Examination of the asymptotic behaviour as the contact line is approached shows…

流体动力学 · 物理学 2013-10-07 David N. Sibley , Andreas Nold , Nikos Savva , Serafim Kalliadasis

In this work, the sharp interface limit of the degenerate Cahn-Hilliard equation (in two space dimensions) with a polynomial double well free energy and a quadratic mobility is derived via a matched asymptotic analysis involving…

数学物理 · 物理学 2015-07-10 Alpha Albert Lee , Andreas Münch , Endre Süli

We present a derivation of the sharp-interface limit of a generic fluctuating phase-field model for solidification. As a main result, we obtain a sharp-interface projection which presents noise terms in both the diffusion equation and in…

材料科学 · 物理学 2016-08-16 R. Benítez , L. Ramírez-Piscina

From extensive molecular dynamics simulations on immiscible two-phase flows, we find the relative slipping between the fluids and the solid wall everywhere to follow the generalized Navier boundary condition, in which the amount of slipping…

软凝聚态物质 · 物理学 2009-11-07 Tiezheng Qian , Xiao-Ping Wang , Ping Sheng

We consider sharp interface asymptotics for a phase field model of two phase near spherical biomembranes involving a coupling between the local mean curvature and the local composition proposed by the first and second authors. The model is…

偏微分方程分析 · 数学 2020-12-24 Charles M. Elliott , Luke Hatcher , Björn Stinner

We are concerned with the sharp interface limit for an incompressible Navier-Stokes and Allen-Cahn coupled system in this paper. When the thickness of the diffuse interfacial zone, which is parameterized by $\varepsilon$, goes to zero, we…

偏微分方程分析 · 数学 2022-05-04 Song Jiang , Xiangxiang Su , Feng Xie

We perform a rigorous examination of the sharp interface limit of a coupled Navier-Stokes and mass-conserving Allen-Cahn system in a two-dimensional, bounded, and smooth domain as the parameter $\varepsilon > 0$, representing the thickness…

偏微分方程分析 · 数学 2026-04-14 Helmut Abels , Hanifah Mumtaz
‹ 上一页 1 2 3 10 下一页 ›