Study of heat transfer in a nickel droplet in electromagnetic levitation

R. Pons - A. Gagnoud - D. Chaussende - O. Budenkova

University Grenoble Alpes, CNRS, Grenoble INP, SIMAP, F-38000 Grenoble, France

Abstract
Under terrestrial conditions, the temperature behaviour of a sample in levitation may be different from that observed in microgravity. Here we present the temporal evolution of the polar and equatorial temperatures of a levitating charge of Ni, revealed numerically and experimentally for different AC current modulations. It is demonstrated that the motion of the sample during the AC current modulation should be taken into account. Tables 2, Figs 3, Refs 9.