Coupled Numerical Simulation Study on Electromagnetic Field, Flow Field and Heat Transfer in Φ210 mm Round Billet Mold with M-EMS

摘要

Taking the Φ210 mm round billet M-EMS as study subject, a mathematical model coupling electromagnetic field, flow field and temperature field is established by use of Finite Element Analysis Software ANSYS. The distribution law of magnetic induction and electromagnetic force is investigated in mold; the effects of current intensity and frequency on magnetic induction, electromagnetic force, flow and temperature field is studied. The results show that: the values of magnetic induction and electromagnetic force reach its maximum near the edge of billet and became smaller towards the center; in the mold with EMS, the rotary flow is generated, and the flow pattern are upper recirculation zone, rotary zone and down recirculation zone, the location of hot area is moved up compared with the condition without EMS; in the considered parameters range, electromagnetic force and velocity of molten steel increase with the rise of current intensity and frequency.