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Code-to-code verification of an axisymmetric model of the Bridgman solidification process for alloys.

Seredyński, Miroslaw, Battaglioli, Sara, Mooney, Robin, Robinson, Anthony, Banaszek, Jerzy and McFadden, Shaun (2017) Code-to-code verification of an axisymmetric model of the Bridgman solidification process for alloys. International Journal of Numerical Methods for Heat and Fluid Flow, 27 (5). [Journal article]

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URL: http://www.emeraldinsight.com/journal/hff

DOI: 10.1108/HFF-03-2016-0123

Abstract

Numerical models of manufacturing processes are useful and provide insight for thepractitioner, however, model verification and validation are a prerequisite for expedientapplication. This paper details the code-to-code verification of a thermal numerical model forthe Bridgman solidification process of alloys in a 2-dimensional axisymmetric domain,against an established commercial code (ANSYS Fluent); the work is considered aconfidence building step in model development. A grid sensitivity analysis is carried out toestablish grid independence, this is followed by simulations of two transient solidificationscenarios: pulling rate step change and ramp input; the results of which are compared anddiscussed. Good conformity of results is achieved, hence the non-commercial model is codeto-code verified; in addition, the ability of the non-commercial model to deal with radial heatflow is demonstrated. The introduction of front tracking to model the macroscopic growth ofdendritic mush and the region of undercooled liquid is identified as the next step in modeldevelopment.

Item Type:Journal article
Keywords:Solidification
Faculties and Schools:Faculty of Computing & Engineering
Faculty of Computing & Engineering > School of Engineering
Research Institutes and Groups:Engineering Research Institute
Engineering Research Institute > Engineering Composites
ID Code:37776
Deposited By: Dr Shaun McFadden
Deposited On:05 May 2017 10:37
Last Modified:05 May 2017 13:19

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