TY - JOUR
T1 - Melt flow control in a multistrand tundish using a turbulence inhibitor
AU - Morales, R. D.
AU - De Barreto, J. J.
AU - López-Ramirez, S.
AU - Palafox-Ramos, J.
AU - Zacharias, D.
N1 - Funding Information:
The authors give thanks to the institutions SNI, CoNaCyT, COFAA, and IPN for the partial financial support. One of us (JdeJB) gives thanks to Instituto Tecnológico de Morelia for allowing him a leave of absence at IPN. Thanks are also given to FOSECO INC., whose support was determinant to perform this study.
PY - 2000
Y1 - 2000
N2 - Water modeling and mathematical simulation techniques were used to study the melt flow under the influence of turbulence inhibitors in a multistrand bloom caster tundish. Three different cases were studied: a bare tundish (BT), a tundish with two pairs of baffles and a waved impact pad (BWIP), and a tundish equipped with turbulence inhibitor and a pair of dams (TI&D). Chemical mixing of tracer turbulence diffusion was also simulated and compared with actual experimental results. The TI&D arrangement showed an improvement of the fluid flow characteristics, yielding better tracer distribution among the outlets, lower values of back mixing flow, and higher values of plug flow. A mass transfer model coupled with k-ε turbulence model predicted acceptably well the experimental chemical mixing of the tracer in the water model. The water modeling and the numerical simulation indicated that the TI&D arrangement retains the tracer inside the vessel for longer times, increasing the minimum residence time. These results encourage the use of turbulence-inhibiting devices in bloom and billet casters, which pursue excellence in product quality.
AB - Water modeling and mathematical simulation techniques were used to study the melt flow under the influence of turbulence inhibitors in a multistrand bloom caster tundish. Three different cases were studied: a bare tundish (BT), a tundish with two pairs of baffles and a waved impact pad (BWIP), and a tundish equipped with turbulence inhibitor and a pair of dams (TI&D). Chemical mixing of tracer turbulence diffusion was also simulated and compared with actual experimental results. The TI&D arrangement showed an improvement of the fluid flow characteristics, yielding better tracer distribution among the outlets, lower values of back mixing flow, and higher values of plug flow. A mass transfer model coupled with k-ε turbulence model predicted acceptably well the experimental chemical mixing of the tracer in the water model. The water modeling and the numerical simulation indicated that the TI&D arrangement retains the tracer inside the vessel for longer times, increasing the minimum residence time. These results encourage the use of turbulence-inhibiting devices in bloom and billet casters, which pursue excellence in product quality.
UR - http://www.scopus.com/inward/record.url?scp=0034468416&partnerID=8YFLogxK
U2 - 10.1007/s11663-000-0035-x
DO - 10.1007/s11663-000-0035-x
M3 - Artículo
SN - 1073-5615
VL - 31
SP - 1505
EP - 1515
JO - Metallurgical and Materials Transactions B: Process Metallurgy and Materials Processing Science
JF - Metallurgical and Materials Transactions B: Process Metallurgy and Materials Processing Science
IS - 6
ER -