Conjugate heat transfer during two-phase solidification process in a continuously moving metal using average heat capacity method

The average heat capacity method was successfully implemented for the analysis of conjugate heat transfer during the two-phase solidification process in continuous castings. The finite element technique with fixed grid was used for the current research. This method overcomes the limitation of the ti...

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Bibliographic Details
Published in:International journal of heat and mass transfer 1999-08, Vol.42 (15), p.2883-2895
Main Authors: Amin, M.Ruhul, Greif, David
Format: Article
Language:English
Subjects:
Applied sciences
Continuous casting
Exact sciences and technology
Finite element method
Foundry engineering
Metals. Metallurgy
Other casting methods. Solidification
Production techniques
Solidification
Specific heat of solids
Two phase flow
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Summary:The average heat capacity method was successfully implemented for the analysis of conjugate heat transfer during the two-phase solidification process in continuous castings. The finite element technique with fixed grid was used for the current research. This method overcomes the limitation of the time increment of the otherwise so-called effective heat capacity method. The investigation included the ranges of mold cooling rate ( Bi 2) , post-mold cooling rate ( Bi 3) , superheat (Θ o) , and withdrawal speed ( Pe) from 0.025 to 0.075, 0.042 to 0.126, 1.2 to 2.7, and 1.0 to 3.45, respectively. The current study shows that two parameters, namely, Pe and Θ o are very important in controlling the microstructure and breakout condition of the cast material.
ISSN:0017-9310
1879-2189
DOI:10.1016/S0017-9310(98)00366-4