Abstract
A fully transient 3D CFD modeling approach capable of predicting the three phase (gas, slag, and steel) flows and behavior of the slag/steel interface in the argon gas bottom stirred ladle with two off-centered porous plugs (Ladle Metallurgical Furnace or LMF) was developed. The modeling approach consists of using a multiphase VOF-Level Set explicit model in conjunction with energy, momentum, and species transfer models as well as the k-epsilon realizable turbulence model with standard wall functions, and species transfer models available in ANSYS Fluent software. The CFD model can predict the evolution of Ar, steel and slag phases as well as the fluid flow characteristics during both the high-stirring and low-stirring conditions in the LMF system. The model predicted accurately the observed size of the slag eyes for both stirring conditions. The model was then applied to study the effects of key processing parameters including Ar flow rate, processing time, and depth of slag on the three phase flows and behavior of the slag/steel interface. The desulfurization process is also studied.
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© 2016 The Minerals, Metals & Materials Society
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Nastac, L., Zhang, D., Cao, Q., Pitts, A., Williams, R. (2016). 3D CFD Modeling of the LMF System. In: Nastac, L., et al. CFD Modeling and Simulation in Materials Processing 2016. The Minerals, Metals & Materials Series. Springer, Cham. https://doi.org/10.1007/978-3-319-65133-0_23
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DOI: https://doi.org/10.1007/978-3-319-65133-0_23
Publisher Name: Springer, Cham
Print ISBN: 978-3-319-65132-3
Online ISBN: 978-3-319-65133-0
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