Partial Model Approach for Efficient and Accurate Prediction of the Forced Convection Coefficient in a Continuous Casting Mold

Heat transfer in a continuous casting mold is produced through interfacial heat fluxes from the molten steel to the mold hot-face and convection between the mold and water. Although conventional methods based on empirical correlations are advantageous in terms of computational cost, they are not cap...

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Bibliographic Details
Published in:Metallurgical and materials transactions. B, Process metallurgy and materials processing science Process metallurgy and materials processing science, 2023-08, Vol.54 (4), p.1886-1899
Main Authors: Kim, Hyungseok, You, Donghyun
Format: Article
Language:English
Subjects:
Characterization and Evaluation of Materials
Chemistry and Materials Science
Coefficients
Computational fluid dynamics
Computing costs
Conjugates
Continuous casting
Cooling effects
Empirical analysis
Forced convection
Heat flux
Heat transfer
Liquid metals
Materials Science
Metallic Materials
Molds
Nanotechnology
Original Research Article
Structural Materials
Surfaces and Interfaces
Thin Films
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Summary:Heat transfer in a continuous casting mold is produced through interfacial heat fluxes from the molten steel to the mold hot-face and convection between the mold and water. Although conventional methods based on empirical correlations are advantageous in terms of computational cost, they are not capable of capturing detailed cooling effects. Although, computational fluid dynamics methods coupled with a heat transfer analysis can provide detailed and accurate distributions of the heat transfer phenomenon in the continuous casting mold, the geometric complexity and associated computational difficulties hinder the practical use. To overcome the difficulties, in the present study, the characteristics of the forced convection coefficient in a typical casting mold is firstly identified. Based on the understanding of the heat transfer characteristics, a partial model approach where the conjugate fluid and heat transfer analysis is conducted only for a selected portion of the mold, and which is capable of providing the forced convection coefficient accurately and efficiently is proposed. The proposed method is found to be capable of predicting the forced convection coefficient and the temperature with an error of less than 2 pct from those of a full model conjugate fluid-heat transfer analysis.
ISSN:1073-5615
1543-1916
DOI:10.1007/s11663-023-02802-8