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Finite element simulation of mold filling using marker particles and the k-ϵ model of turbulence

✍ Scribed by Kader Zaidi; Boussad Abbes; Cristian Teodosiu

Publisher
Elsevier Science
Year
1997
Tongue
English
Weight
531 KB
Volume
144
Category
Article
ISSN
0045-7825

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✦ Synopsis

An algorithm of tracking the free surface, during the filling of castings with molten metal, is developed from the Market And Cell (MAC) technique [l]. The Navier-Stokes equations, for incompressible, non-steady Newtonian flows, are solved by the finite element method. The turbulence state is defined by the k-e model. A preliminary experimental study showed that a zero boundary-value of the stress vector may be applied along the free surface of the metal. The free surface can be visualized at any time of the process.

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Developing Couette-Poiseuille flows at Re= 5000 are studied using a low Reynolds number ktwo-equation model and a finite element formulation. Mesh-independent solutions are obtained using a standard Galerkin formulation and a Galerkin/least-squares stabilized method. The predictions for the velocity