Enhanced interface dynamics in second-order Cahn-Hilliard models: A comparative analysis with applications to convection-diffusion

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388998%3A_____%2F25%3A00641755" target="_blank" >RIV/61388998:_____/25:00641755 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21220/25:00386291

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S0045794925003670?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0045794925003670?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.compstruc.2025.108009" target="_blank" >10.1016/j.compstruc.2025.108009</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Enhanced interface dynamics in second-order Cahn-Hilliard models: A comparative analysis with applications to convection-diffusion

Popis výsledku v původním jazyce

This paper presents a numerical investigation of various formulations of the Cahn–Hilliard (CH) equation for phase separation in binary mixtures. By comparing first- and second-order CH formulations across a suite of diffusive and convective test cases, we demonstrate that second-order models not only produce sharper diffuse- and convective-interface representations but also substantially accelerate phase separation, enabling more rapid attainment of pure-phase states. A key contribution is the development of efficient, unconditionally energy stable numerical scheme for the doubly-degenerate second-order model, implemented in OpenFOAM and applied to convection–diffusion problems. Future work will address coupling of the model with the Navier–Stokes (NS) equations to capture full two-phase flow dynamics despite necessary modifications to the chemical potential.

Název v anglickém jazyce

Enhanced interface dynamics in second-order Cahn-Hilliard models: A comparative analysis with applications to convection-diffusion

Popis výsledku anglicky

This paper presents a numerical investigation of various formulations of the Cahn–Hilliard (CH) equation for phase separation in binary mixtures. By comparing first- and second-order CH formulations across a suite of diffusive and convective test cases, we demonstrate that second-order models not only produce sharper diffuse- and convective-interface representations but also substantially accelerate phase separation, enabling more rapid attainment of pure-phase states. A key contribution is the development of efficient, unconditionally energy stable numerical scheme for the doubly-degenerate second-order model, implemented in OpenFOAM and applied to convection–diffusion problems. Future work will address coupling of the model with the Navier–Stokes (NS) equations to capture full two-phase flow dynamics despite necessary modifications to the chemical potential.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20302 - Applied mechanics

Projekt

<a href="/cs/project/EF16_019%2F0000826" target="_blank" >EF16_019/0000826: Centrum pokročilých leteckých technologií</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Computers and Structures

ISSN

0045-7949

e-ISSN

1879-2243

Svazek periodika

319

Číslo periodika v rámci svazku

December

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

18

Strana od-do

108009

Kód UT WoS článku

001610801000001

EID výsledku v databázi Scopus

2-s2.0-105020252972