Mathematical Modeling of Electromagnetically Levitated Metallic Melts in the Observation of Solidification Phenomena

摘要

The paper presents recent research work onelectromagnetic levitation at MIT. Results ofmathematical modeling of electromagnetic fields, fluidflow and heat transfer are described. Also presented arerecent measurements of surface tension and viscosityobtained using an electromagnetic levitation system(TEMPUS) in a microgravity environment. The nucleationof solidification and phase competition in ironbased-alloys and the crystal growth kinetics in purenickel both processed using a ground-basedelectromagnetic containerless technique are alsoexamined. The seminal contribution of Professor Szekelyin the mathematical modeling of electromagneticlevitation systems is highlighted.