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Mathematical Modeling of Argon Bubbling Effects on Fluid Flow Patterns of Liquid Steel in a Slab Mold
Author(s) -
ÁvilaOrtiz Yesenia,
Morales Rodolfo MoralesDávila,
CedilloHernández Valentín,
DelgadoPureco Juan
Publication year - 2018
Publication title -
steel research international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.603
H-Index - 49
eISSN - 1869-344X
pISSN - 1611-3683
DOI - 10.1002/srin.201700453
Subject(s) - mechanics , nozzle , slab , materials science , flow (mathematics) , water model , bubble , volume of fluid method , argon , multiphase flow , fluid dynamics , mixing (physics) , volumetric flow rate , work (physics) , thermodynamics , engineering , chemistry , structural engineering , physics , computational chemistry , organic chemistry , quantum mechanics , molecular dynamics
A multiphase model to simulate the experimental results of a full‐scale, water‐air model of two‐phase flows is reported here to study liquid steel–argon flows in slab molds. The objective of this work is to define an operating interval of gas load or gas volume fraction in the nozzle to maintain double roll flow patterns in the mold. A gas‐load threshold (upper boundary in this operating interval) exists where further increases of this operating variable do not change anymore the flow patterns of the liquid phase for a given liquid throughput. A correction factor is defined to scale‐up the flow dynamics of a single bubble in the liquid to a swarm of bubbles which helps to predict the existence of this gas‐load threshold. The mathematical simulations, using this multiphase model, predict very well the existence and applicability of this correction factor.