On the development of Cahn-Hilliard Navier-Stokes numerical solver within OpenFOAM framework

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F22%3A00362751" target="_blank" >RIV/68407700:21220/22:00362751 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.kme.zcu.cz/compmech/download/proceedings/CM2022_Conference_Proceedings.pdf" target="_blank" >https://www.kme.zcu.cz/compmech/download/proceedings/CM2022_Conference_Proceedings.pdf</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

On the development of Cahn-Hilliard Navier-Stokes numerical solver within OpenFOAM framework

Popis výsledku v původním jazyce

There exist various strategies used for description and computing two-phase fluid flows, both form theoretical and engineering point of view. The physical models of our interest belong to the family of models using only one set of equations for all the fluid phases with addition of phase-transport equation closing the system. Engineering two-phase flow simulations mostly refer to either of two interface-capturing methods, namely the Level-Set and the Volume-of-Fluid (VoF) approach which both reconstruct the free surface from an indicator function. The less common approach based on diffuse interface is Cahn-Hilliard model, offering many advantages, including mass conservation, thermodynamic consistency, and a free-energy-based description of surface tension with a well-established theory from non-equilibrium thermodynamics. This contribution presents Cahn-Hilliard Navier-Stokes solver being developed within the OpenFOAM framework. The performance of new solver is compared with built-in VoF solver on a simple test case. Several solution algorithms and future development possibilities are discussed.

Název v anglickém jazyce

On the development of Cahn-Hilliard Navier-Stokes numerical solver within OpenFOAM framework

Popis výsledku anglicky

There exist various strategies used for description and computing two-phase fluid flows, both form theoretical and engineering point of view. The physical models of our interest belong to the family of models using only one set of equations for all the fluid phases with addition of phase-transport equation closing the system. Engineering two-phase flow simulations mostly refer to either of two interface-capturing methods, namely the Level-Set and the Volume-of-Fluid (VoF) approach which both reconstruct the free surface from an indicator function. The less common approach based on diffuse interface is Cahn-Hilliard model, offering many advantages, including mass conservation, thermodynamic consistency, and a free-energy-based description of surface tension with a well-established theory from non-equilibrium thermodynamics. This contribution presents Cahn-Hilliard Navier-Stokes solver being developed within the OpenFOAM framework. The performance of new solver is compared with built-in VoF solver on a simple test case. Several solution algorithms and future development possibilities are discussed.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

10102 - Applied mathematics

Projekt

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Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2022

Kód důvěrnosti údajů

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

Název statě ve sborníku

PROCEEDINGS OF COMPUTATIONAL MECHANICS 2022

ISBN

978-80-261-1116-0

ISSN

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e-ISSN

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Počet stran výsledku

4

Strana od-do

75-78

Název nakladatele

Západočeská univerzita v Plzni

Místo vydání

Plzeň

Místo konání akce

Srní

Datum konání akce

7. 11. 2022

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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