| About this Abstract |
| Meeting |
2011 TMS Annual Meeting & Exhibition
|
| Symposium
|
Aluminum Alloys: Fabrication, Characterization and Applications
|
| Presentation Title |
Simulation of the Deformation of a Flexible Combo Bag in a DC Aluminium Casting |
| Author(s) |
Abdellah Kharicha |
| On-Site Speaker (Planned) |
Abdellah Kharicha |
| Abstract Scope |
In the latest years combo bags were introduced in the DC aluminium casting to give better production results. In order to understand why this is the case, hydrodynamic simulations are performed. The movement of the Combo bag surface is modelled though the introduction of particles markers. The particles are allowed to move according to a dynamic law using an assumed flow-bag drag interaction. An additional artificial elastic force is introduced between neighbour particles in order to keep the total bag surface constant. The specificity of the present liquid/bag drag is not only its dependence on the relative movements, but also on the relative liquid velocity/bag surface angle. This kind of fluid/structure approach allows a full coupling between the liquid flow hydrodynamic and the bag shape movement. The results will focus on the quantification of the impact of the bag on the global heat transfer and solidification pool shape.
|
| Proceedings Inclusion? |
Planned: A print-only volume |