Extended Vofire algorithm for fast transient fluid-structure dynamics with liquid-gas flows and interfaces
Résumé
The present paper is dedicated to the simulation of liquid–gas flows with interfaces in
the framework of fast transient fluid–structure dynamics. The two-fluid interface is
modelled as a discontinuity surface in the fluid property. We use an anti-dissipative
Finite-Volume discretization strategy for unstructured meshes in order to capture the
position of the interface within a thin diffused volume. This allows to control the
numerical diffusion of the artificial mixing between components and provide an accurate
capture of complex interface motions. This scheme is an extension of the Vofire
numerical solver. We propose specific developments in order to handle flows that
involved high density ratio between liquid and gas. The resulting scheme capabilities are
validated on basic examples and also tested against large scale fluid–structure test
derived from the MARA 10 experiment. All simulations are performed using EURO-
PLEXUS fast transient dynamics software.
Origine : Fichiers produits par l'(les) auteur(s)
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