2010 | OriginalPaper | Buchkapitel
An a Priori Study for the Modeling of Subgrid Terms in Multiphase Flows
verfasst von : P. Trontin, S. Vincent, J. L. Estivalezes, J. P. Caltagirone
Erschienen in: Turbulence and Interactions
Verlag: Springer Berlin Heidelberg
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In the framework of turbulent interfacial multiphase flows, an
a priori
study is performed in the case of the turbulence/interface interaction. Density and viscosity ratios are set to 1 to perform a parametric study on surface tension forces. When using the ghost-fluid method, subgrid-scale terms deriving from jump conditions appear in the pressure gradient and viscous terms. A model is tested for advective SGS terms deriving from both the momentum equation and the advection of the interface.