ELECTROMAGNETIC VAPORIZATION OF MOLTEN-METAL DROPS

A one-dimensional heat conduction model is formulated to study electromagnetic vaporization of molten-metal drops as an initial attempt to model the physical process. Finite-element discretization is used to obtain the numerical solution, and numerical experiments are performed for three typical metals; aluminum, copper and titanium. Computational results show that the final size of the drop radius R(f) can be effectively controlled by changing amplitude B0 and radian frequency omega of the external alternating magnetic field. In addition, R(f) remains almost constant for a relatively wide range of the initial drop radii R0. The results of numerical solution are compared with the lumped solution and the differences in time history of the evaporation process studied.