Modeling of electromagnetic, fluid flow, and heat transfer phenomena in electromagnetic casting of aluminum
- Univ. of Alabama, Tuscaloosa, AL (United States). Dept. of Metallurgical and Materials Engineering
A mathematical model for the analysis and design of electromagnetic continuous casters (EMC) has been developed. The model addresses all aspects of EMC operation, namely, electromagnetic confinement of the molten pool, and melt solidification, all in terms of basic process variables. A methodology is presented for solving the coupled electromagnetic, heat transfer and fluid flow equations without regridding the solution domain during the search for the equilibrium meniscus shape, which is not known a priori. It is based on the solution of these equations in a fixed computational domain using a variable non-orthogonal coordinate transformation. Within this framework, the electromagnetic field was computed using the technique of mutual inductance, while the temperature and velocity fields in the slab were calculated using the control volume technique. The equilibrium shape of the meniscus was determined from the balance between the magnetic, metallostatic, and surface tension pressures. The model was used to simulate EMC casting of aluminum, and the numerical predictions were found to be in excellent agreement with experimental measurements reported in the open literature. The model presented in this paper provides a theoretical framework for the analysis and optimization of EMC casters.
- OSTI ID:
- 227743
- Report Number(s):
- CONF-9509118--; ISBN 0-87339-297-3
- Country of Publication:
- United States
- Language:
- English
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