An improved volume of fluid method for two-phase flow computations on collocated grid system / Dong-Liang Sun in Journal of heat transfer, Vol. 133 N° 4 (Avril 2011)  

Public ISBD [article]  inJournal of heat transfer > Vol. 133 N° 4 (Avril 2011) . - pp. [041901/1-8] Titre : An improved volume of fluid method for two-phase flow computations on collocated grid system Type de document : texte imprimé Auteurs : Dong-Liang Sun, Auteur ; Yong-Ping Yang, Auteur ; Jin-Liang Xu, Auteur Année de publication : 2011 Article en page(s) : pp. [041901/1-8] Note générale : Physique Langues : Anglais (eng) Mots-clés : ADV-VOF IDV-VOF Two-phase flow Collacated grid system Index. décimale : 536 Chaleur. Thermodynamique Résumé : An improved volume of fluid method called the accurate density and viscosity volume of fluid (ADV-VOF) method is proposed to solve two-phase flow problems. The method has the following features: (1) All operations are performed on a collocated grid system. (2) The piecewise linear interface calculation is used to capture interfaces and perform accurate estimations of cell-edged density and viscosity. (3) The conservative Navier–Stokes equations are solved with the convective term discretized by a second and third order interpolation for convection scheme. (4) A fractional-step method is applied to solve the conservative Navier–Stokes equations, and the BiCGSTAB algorithm is used to solve the algebraic equations by discretizing the pressure-correction equation. The above features guarantee a simple, stable, efficient, and accurate simulation of two-phase flow problems. The effectiveness of the ADV-VOF method is verified by comparing it with the conventional volume of fluid method with rough treatment of cell-edged density and viscosity. It is found that the ADV-VOF method could successfully model the two-phase problems with large density ratio and viscosity ratio between two phases and is better than the conventional volume of fluid method in this respect. DEWEY : 536 ISSN : 0022-1481 En ligne : http://asmedl.aip.org/vsearch/servlet/VerityServlet?KEY=JHTRAO&smode=strresults& [...] [article] An improved volume of fluid method for two-phase flow computations on collocated grid system [texte imprimé] / Dong-Liang Sun, Auteur ; Yong-Ping Yang, Auteur ; Jin-Liang Xu, Auteur . - 2011 . - pp. [041901/1-8]. Physique Langues : Anglais (eng) in Journal of heat transfer > Vol. 133 N° 4 (Avril 2011) . - pp. [041901/1-8] Mots-clés : ADV-VOF IDV-VOF Two-phase flow Collacated grid system Index. décimale : 536 Chaleur. Thermodynamique Résumé : An improved volume of fluid method called the accurate density and viscosity volume of fluid (ADV-VOF) method is proposed to solve two-phase flow problems. The method has the following features: (1) All operations are performed on a collocated grid system. (2) The piecewise linear interface calculation is used to capture interfaces and perform accurate estimations of cell-edged density and viscosity. (3) The conservative Navier–Stokes equations are solved with the convective term discretized by a second and third order interpolation for convection scheme. (4) A fractional-step method is applied to solve the conservative Navier–Stokes equations, and the BiCGSTAB algorithm is used to solve the algebraic equations by discretizing the pressure-correction equation. The above features guarantee a simple, stable, efficient, and accurate simulation of two-phase flow problems. The effectiveness of the ADV-VOF method is verified by comparing it with the conventional volume of fluid method with rough treatment of cell-edged density and viscosity. It is found that the ADV-VOF method could successfully model the two-phase problems with large density ratio and viscosity ratio between two phases and is better than the conventional volume of fluid method in this respect. DEWEY : 536 ISSN : 0022-1481 En ligne : http://asmedl.aip.org/vsearch/servlet/VerityServlet?KEY=JHTRAO&smode=strresults& [...]

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