Influence of Hydrodynamic Structure on Mixing Time of Alloy Additions with Liquid Steel in One Strand Tundish

The knowledge of the hydrodynamic pattern aids in designing new and modernizing existing tundishes. The device under examination is an one-strand tundish of a capacity of 30 Mg. Computer simulation of the liquid steel flow, tracer and alloy addition behaviour in turbulent motion conditions was done...

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Published in:Archives of metallurgy and materials 2016-03, Vol.61 (1), p.295-300
Main Author: Cwudzinski, A
Format: Article
Language:English
Subjects:
Computer simulation
Computers
Continuous casting
Heat
hydrodynamics structure
Liquid alloys
Modernization
numerical modeling
Residence time distribution
RTD curves
time mixing
tundish
Tundishes
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description The knowledge of the hydrodynamic pattern aids in designing new and modernizing existing tundishes. The device under examination is an one-strand tundish of a capacity of 30 Mg. Computer simulation of the liquid steel flow, tracer and alloy addition behaviour in turbulent motion conditions was done using the Ansys-Fluent computer program. The hydrodynamic conditions of steel flow were determined based on the distribution of the characteristics of tundish liquid steel residence time distribution (RTD). The alloy addition was introduced to the liquid steel by the pulse-step method. Based on computer simulations carried out, steel flow fields and RTD and mixing curves were obtained, and the shares of stagnant volume flow and active flow and the mixing time were computed. Dispersion of the alloy addition in liquid steel during its flow through the tundish is a dynamic process which is determined by the hydrodynamic conditions occurring in the tundish working space.
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source IngentaConnect Journals; ProQuest Publicly Available Content database
subjects Computer simulation
Computers
Continuous casting
Heat
hydrodynamics structure
Liquid alloys
Modernization
numerical modeling
Residence time distribution
RTD curves
time mixing
tundish
Tundishes
title Influence of Hydrodynamic Structure on Mixing Time of Alloy Additions with Liquid Steel in One Strand Tundish
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