Numerical Simulation of Electromagnetic Field and Flow Field in the Course of Preparation Semi-solid Slurry of Aluminum Alloy
The electromagnetic fields and flow fields in semisolid slurry of aluminum alloy during electromagnetic stirring were simulated by ANSYS software,the influence of the intensity and frequency of current on the magnetic induction intensity was investigated.The influence of the viscosity on the velocity of slurry was also investigated.The results show that under electromagnetic force the aluminum alloy melt rotate at the horizontal direction;Because of skin effect of induced current,electromagnetic force decrease from edge to centre;the magnetic induction intensity increased with the enhancement of current intensity at the same current frequency;the magnetic density decreased with the enhancement of current frequency at the same current intensity;With the temperature of semisolid slurry decreased,the viscosity of semisolid slurry increased and the velocity of semisolid slurry decreased.