Movement of solid-liquid interface in gallium alloy under the action of rotating magnetic field

I. Kolesnichenko^1,2 - A. Pavlinov¹ - R. Khalilov¹

¹ Institute of Continuous Media Mechanics, Perm, Russia
² Perm National Research Polytechnic University, Perm, Russia

Abstract
The process of gallium alloy crystallization under stirring conditions is studied experimentally. A stirring flow is induced by an external rotating magnetic field generated by an MHD stirrer containing a cylindrical vessel with a gallium alloy. The evolution of the liquid--solid interface is studied by the UDV technique. The position of the interface on the echo profile is found by the wavelet analysis using the ``Mexican hat'' wavelet. The evolution of the interface during crystallization has been investigated for stirring flows of various intensity. Figs 5, Refs 9.