TY - GEN
T1 - Slidegate dithering effects on transient flow and mold level fluctuations
AU - Liu, Rui
AU - Thomas, Brian G.
AU - Kalra, Love
AU - Bhattacharya, Tathagata
AU - Dasgupta, Aloka
PY - 2013
Y1 - 2013
N2 - The effects of slide-gate dithering on surface flow behavior during continuous casting are investigated via mathematical modeling and plant trial measurements. A transient turbulent flow model with a new free surface tracking algorithm using a dynamic mesh was developed, validated, and applied to match different measured level-fluctuation histories. Simulation results explain the mechanism of large sloshing observed in a dithering trial when the dithering frequency matches the mold natural frequency. The associated flow-rate variations then amplify the velocity variations in the circulating fluid. Parametric studies reveal that mold level fluctuations increase with increasing casting speed, and dithering stroke.
AB - The effects of slide-gate dithering on surface flow behavior during continuous casting are investigated via mathematical modeling and plant trial measurements. A transient turbulent flow model with a new free surface tracking algorithm using a dynamic mesh was developed, validated, and applied to match different measured level-fluctuation histories. Simulation results explain the mechanism of large sloshing observed in a dithering trial when the dithering frequency matches the mold natural frequency. The associated flow-rate variations then amplify the velocity variations in the circulating fluid. Parametric studies reveal that mold level fluctuations increase with increasing casting speed, and dithering stroke.
KW - Dynamic mesh technique
KW - Free-surface tracking
KW - Mold level fluctuation
KW - Mold sloshing
KW - Slide-gate dithering
UR - http://www.scopus.com/inward/record.url?scp=84881283530&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84881283530&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:84881283530
SN - 9781935117339
T3 - AISTech - Iron and Steel Technology Conference Proceedings
SP - 1351
EP - 1364
BT - AISTech 2013 - Proceedings of the Iron and Steel Technology Conference
T2 - AISTech 2013 Iron and Steel Technology Conference
Y2 - 6 May 2013 through 9 May 2013
ER -