Modelling and Simulation of Solidification Time in Casting
摘要
This study employs Ansys Fluent to represent the casting process, utilizing the multi-phase approach of Volume of Fluid to track the interface between air and molten aluminium during casting. The turbulence within the cavity is modelled using the RNG k-ε method. The numerical analysis is based on all governing equations such as continuity, momentum and energy. The study investigates the influence of pouring parameters like pouring temperature, velocity of pouring and mould preheating temperature on solidification time, observing longer solidification times with increasing pouring temperature and shorter times with higher pouring velocity. Results identify favourable combinations of pouring temperature and velocity and mould preheating temperature for shorter solidification times. The research emphasizes the importance of these parameters in determining solidification time during casting.