Fluid Flow, Solidification and Inclusion Entrapment during Steel Centrifugal Casting Process

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CFD Modeling and Simulation in Materials Processing, Page: 1-16

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Zhang, Lifeng; Wang, Yufeng; Martinez, Edith; Peaslee, Kent D.
Materials Science; Centrifugal Casting; Steel; Fluid Flow; Inclusions; Entrapment; Centrifugal Casting; Steel; Fluid Flow; Inclusions; Entrapment; Materials Science and Engineering
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The current study investigated the multiphase fluid flow, heat transfer, solidification of the steel, and the motion and entrapment of inclusions during the centrifugal casting process using FLUENT software. User-defined functions (UDFs) were developed to add velocity with a value related to the rotation speed and radial distance to the solidified steel, to exert a centrifugal force to the motion of inclusions, and to add the entrapment condition of inclusions at the solidifying shell and export the entrapment locations of the inclusion. The calculation shows that there are two peaks of inclusions along the thickness of the produced tube: one at close to outer surface and another one close to the inner surface of the tube. With a larger rotation speed, inclusions tend to be entrapped more towards the inner surface. The calculation agrees well with the industrial measurements. © 2012 The Minerals, Metals, & Materials Society. All rights reserved.