Numerical simulation of the pressure filling of an angle plate cavity
Journal Title: Archiwum Odlewnictwa - Year 2011, Vol 11, Issue 2
Abstract
In this paper, a three-dimensional mathematical and numerical model of the growth of the solid metal phase within a thin-walled casting, which take into account the pressure filling process of the mould cavity with molten metal, have been proposed. In the mathematical model, velocity and pressure fields were obtained by solving the momentum equations and the continuity equation, while the thermal fields were obtained by solving the energy equation. These equations contain the turbulent viscosity which is found from k-ε model parameters by solving two additional transport equations for the turbulent kinetic energy and its rate of dissipation. In the numerical model, coupling of the thermal and fluid flow phenomena by changes in the thermophysical parameters of alloy with respect to temperature has been taken into consideration. The influence of the pressure and the temperature of metal injecting on the solid phase growth kinetics of the pressure casting were estimated. The temperature and pressure are important to the finished product quality and may be used to optimize the die casting process. The problem has been solved by the finite element method.
Authors and Affiliations
L. Sowa, A. Bokota
Keywords
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