MHD-stirrer for cylindrical molds of continuous casting machines fabricated aluminium alloy

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

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

Abstract
We study the operation of the MHD stirrer in a cylindrical channel with a liquid metal based on the results of experiments and 3D numerical simulations. The investigations described in this paper are focused on electromagnetic and hydrodynamic processes. The distribution of the magnetic field components throughout the cylindrical channel inside the stirrer is determined from Hall sensor magnetometer measurements. We studied the forces, acting on cylinders of different height placed inside the stirrer and calculated the intensity of electromagnetic forces as a function of the value and frequency of the feeding current. Experimental investigations of the velocity field and its oscillations in a cylindrical crucible filled with a gallium alloy were performed using ultrasonic Doppler velocimeter measurements. The obtained results pave the way for our future study concerned with the process of metal crystallization under stirring conditions. Figs 10, Refs 13.