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A second order accurate numerical scheme is proposed and analyzed for the periodic three-component Macromolecular Microsphere Composite(MMC) hydrogels system, a ternary Cahn-Hilliard system with a Flory-Huggins-deGennes free energy…

数值分析 · 数学 2025-01-13 Lixiu Dong , Cheng Wang , Zhengru Zhang

In this article, we present and analyze a finite element numerical scheme for a three-component macromolecular microsphere composite (MMC) hydrogel model, which takes the form of a ternary Cahn-Hilliard-type equation with…

数值分析 · 数学 2021-04-20 Maoqin Yuan , Wenbin Chen , Cheng Wang , Steven M. Wise , Zhengru Zhang

We present and analyze a new second-order finite difference scheme for the Macromolecular Microsphere Composite hydrogel, Time-Dependent Ginzburg-Landau (MMC-TDGL) equation, a Cahn-Hilliard equation with Flory-Huggins-deGennes energy…

数值分析 · 数学 2020-08-26 Lixiu Dong , Cheng Wang , Hui Zhang , Zhengru Zhang

In this paper, we develop a first order (in time) numerical scheme for the binary fluid surfactant phase field model. The free energy contains a double-well potential, a nonlinear coupling entropy and a Flory-Huggins potential. The…

数值分析 · 数学 2021-02-17 Yuzhe Qin , Cheng Wang , Zhengru Zhang

We propose and analyze a first-order finite difference scheme for the functionalized Cahn-Hilliard (FCH) equation with a logarithmic Flory-Huggins potential. The semi-implicit numerical scheme is designed based on a suitable convex-concave…

数值分析 · 数学 2023-07-28 Wenbin Chen , Jianyu Jing , Hao Wu

A finite difference numerical scheme is proposed and analyzed for the Cahn-Hilliard-Stokes system with Flory-Huggins energy functional. A convex splitting is applied to the chemical potential, which in turns leads to the implicit treatment…

数值分析 · 数学 2023-03-22 Yunzhuo Guo , Cheng Wang , Steven M. Wise , Zhengru Zhang

We present and analyze finite difference numerical schemes for the Allen Cahn/Cahn-Hilliard equation with a logarithmic Flory Huggins energy potential. Both the first order and second order accurate temporal algorithms are considered. In…

数值分析 · 数学 2019-02-12 Wenbin Chen , Cheng Wang , Xiaoming Wang , Steven M. Wise

We present and analyze an unconditionally energy stable and convergent finite difference scheme for the Functionalized Cahn-Hilliard equation. One key difficulty associated with the energy stability is based on the fact that one nonlinear…

数值分析 · 数学 2016-10-11 Wenqiang Feng , Zhen Guan , John Lowengrub , Cheng Wang , Steven M. Wise

We propose and analyze a finite element approximation of the relaxed Cahn-Hilliard equation with singular single-well potential of Lennard-Jones type and degenerate mobility that is energy stable and nonnegativity preserving. The…

偏微分方程分析 · 数学 2022-12-21 Alexandre Poulain , Federica Bubba

We present a finite-volume based numerical scheme for a nonlocal Cahn-Hilliard equation which combines ideas from recent numerical schemes for gradient flow equations and nonlocal Cahn-Hilliard equations. The equation of interest is a…

数值分析 · 数学 2024-04-08 Rainey Lyons , Grigor Nika , Adrian Muntean

In this paper we propose and analyze a finite difference numerical scheme for the Flory-Huggins-Cahn-Hilliard equation with dynamical boundary condition. The singular logarithmic potential is included in the Flory-Huggins energy expansion.…

数值分析 · 数学 2025-01-23 Yunzhuo Guo , Cheng Wang , Steven M. Wise , Zhengru Zhang

In this work, the MMC-TDGL equation, a stochastic Cahn-Hilliard equation is solved numerically by using the finite difference method in combination with a convex splitting technique of the energy functional. For the non-stochastic case, we…

数值分析 · 数学 2016-08-24 Xiao Li , Zhonghua Qiao , Hui Zhang

We present a numerical scheme for solving a sixth-order Cahn-Hilliard type equation that captures the dynamics of phase transitions in a ternary mixture consisting of two immiscible fluids and a surface active molecule that is amphiphilic.…

数值分析 · 数学 2025-04-01 Natasha S. Sharma , Giordano Tierra

In this paper we devise and analyze an unconditionally stable, second-order-in-time numerical scheme for the Cahn-Hilliard equation in two and three space dimensions. We prove that our two-step scheme is unconditionally energy stable and…

数值分析 · 数学 2014-11-20 Amanda E. Diegel , Cheng Wang , Steven M. Wise

We develop a new finite difference scheme for the Maxwell-Stefan diffusion system. The scheme is conservative, energy stable and positivity-preserving. These nice properties stem from a variational structure and are proved by reformulating…

数值分析 · 数学 2020-05-19 Xiaokai Huo , Hailiang Liu , Athanasios E. Tzavaras , Shuaikun Wang

In this work we introduce novel numerical schemes for a penalized version of the ternary Cahn-Hilliard system for the purpose of creating accurate and efficient numerical schemes of interfacial dynamics with three components as well as some…

数值分析 · 数学 2025-11-06 Justin Swain , Giordano Tierra

A positivity-preserving fractional algorithm is presented for solving the four-equation homogeneous relaxation model (HRM) with an arbitrary number of ideal gases and a liquid governed by the stiffened gas equation of state. The fractional…

计算物理 · 物理学 2022-12-21 Man Long Wong , Jordan B. Angel , Cetin C. Kiris

A fully discrete semi-convex-splitting finite-element scheme with stabilization for a Cahn-Hilliard cross-diffusion system is analyzed. The system consists of parabolic fourth-order equations for the volume fraction of the fiber phase and…

数值分析 · 数学 2024-06-05 Ansgar Jüngel , Boyi Wang

A novel numerical scheme including time and spatial discretization is offered for coupled Cahn-Hilliard and Navier-Stokes governing equation sys-tem in this paper. Variable densities and viscosities are considered in the nu-merical scheme.…

计算物理 · 物理学 2018-05-25 Xiaoyu Feng , Jisheng Kou , Shuyu Sun

We consider numerical methods for the Poisson-Nernst-Planck-Cahn-Hilliard (PNPCH) equations with steric interactions. We propose a novel energy stable numerical scheme that respects mass conservation and positivity at the discrete level.…

数值分析 · 数学 2021-02-03 Yiran Qian , Cheng Wang , Shenggao Zhou
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