Flow control with local electromagnetic braking in continuous casting of steel slabs
Electromagnetic forces are an important tool to control fluid flow in the mold,combined with other casting conditions,nozzle,and mold geometry.The effects of varying EMBr field strength and SEN submergence depth on fluid flow in the mold cavity is investigated with computational flow models and plant measurements.Magnetic field contours for a localized static EMBr field were measured in an operating thin-slab caster and incorporated into a threedimensional (3-D)steady k-ε model of the nozzle and liquid cavity in the mold using the magnetic induction method in FLUENT.The model was first validated by comparing results with an analytical solution.It was further validated with plant measurements of surface velocity using nail boards and surface profile using oscillation mark measurements.Using the knowledge gained from the model and measurements together,electromagnetic forces and submergence depth can be controlled together to stabilize the fluid flow in the mold cavity and thereby minimize casting defects,
continuous casting local EMBr nail board plant measurements CFD modeling
Brian G Thomas Kevin Cukierski
Department of Mechanical Science and Engineering,University of Illinois,Urbana,Illinois,USA
国际会议
上海
英文
122-126
2008-09-26（万方平台首次上网日期，不代表论文的发表时间）