Effect of an external magnetic field on a rising bubble in a liquid metal

Y. Shibasaki¹ - T. Tagawa² - K. Ueno¹

¹ Department of Aerospace Engineering, Tohoku University, Sendai 980-8579 Japan
² Department of Aerospace Engineering, Tokyo Metropolitan University,Hino Tokyo 191-0065 Japan

Abstract
Three-dimensional numerical simulations of a single rising bubble flow within a long vertical rectangular enclosure in the presence of a uniform magnetic field are carried out. The numerical results exhibit a significant difference in bubble shape depending on the direction of the applied magnetic field as well as on the value of the Hartmann number. The uniform vertical magnetic field elongates the bubble's shape in the field direction, while the uniform horizontal magnetic field makes the bubble flatter perpendicular to the field direction. Tables 1, Figs 4, Refs 9