The Finite Element Analysis of Axisymmetric Flow of Air through the Top Riser of Casting Utilizing Stream Function Model

Abstract

This work focuses on the analysis of the air flow through the top risers of casting using the stream function model. Casting is a method of producing complex shapes out of metal resources. Casting has two stages: the filling process, which necessitates the use of a gating system, and the solidification phase, which necessitates the use of a riser. The molten metal rapidly displaces the air in the mould cavity during casting, needing a thorough understanding of the air flow behaviour as it exits the riser.  The axisymmetric flow of air through the top risers of casting was studied using the finite element method and the stream function model. The velocity profile at any cross section is parabolic in shape, with the maximum velocity at the centre, according to the results. The finite element result converged towards the exact solution when compared to the exact solution.