An Enriched Pressure Interpolation Finite Element Model for Mould Filling Problems

Abstract

Mould filling problems with slow inlet velocities lead to complex two phase flow simulations. As the Froude number decreases the coupling between the position of the inteface and the resulting flow increases. For such flows we have developed a model that enriches the finite element pressure shape functions in elements cut by the interface so that a discontinuous pressure gradient can be represented. In this work we show that the model can be applied to complex mould filling problems obtained directly from the foundry.