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Communication dans un congrès
Finite element analysis of turbulent flow during the mould filling in casting
Abstract : A finite element model for 2D and 3D incompressible turbulent hows has been developed to describe the filling stage of casting processes. The how is simulated by averaged Navier-Stokes equations and the standard k-epsilon model is used to take into account its turbulent behaviour. A simplified version of the wall function method is employed to approach the dominant viscous effects in the near wall zones. About the mechanical model, a mixed velocity-pressure Arbitrary Lagrangian Eulerian formulation has been developed to provide a natural representation of the moving free boundaries, by means of a convected mesh. The validation of our models is established from differents tests found in the literature. The capability of the software is illustrated with a casting-like flow of industrial complexity, in which turbulent effects are dominant.
https://hal-mines-paristech.archives-ouvertes.fr/hal-00573785
Contributeur : Magalie Prudon <>
Soumis le : vendredi 4 mars 2011 - 16:17:25
Dernière modification le : jeudi 24 septembre 2020 - 17:22:55
Contributeur : Magalie Prudon <>
Soumis le : vendredi 4 mars 2011 - 16:17:25
Dernière modification le : jeudi 24 septembre 2020 - 17:22:55