|About this Abstract
||2016 TMS Annual Meeting & Exhibition
||CFD Modeling and Simulation in Materials Processing
||Modelling Unsteady Mould Filling of Single Crystal Turbine Blade Castings
||Vanessa Indrizzi, Duncan Putman, Nils Warnken
|On-Site Speaker (Planned)
Mould filling is an essential step in the investment casting process since it determines mould filling patterns and initial temperature distributions at the start of solidification, which influence the quality of the final product. For this reason mould filling has been subject to many experimental and computational studies. In numerical simulations, the inlet condition for the liquid metal is commonly set in a very simplistic way, for example as a constant flow rate, which is not necessarily a good approximation for actual casting processes.
The present work focuses on inlet conditions for simulations of mould filling, using the filling of single-crystal turbine blades as examples. Flow patterns obtained from computational fluid dynamics models with different inlet conditions are compared to high speed camera images. Results show that mould filling simulations are significantly improved by using realistic inlet conditions.
||Planned: A print-only volume