Code-to-code verification for thermal models of melting and solidification in a metal alloy: comparisons between a Finite Volume Method and a Finite Element Method

<p>Verification, the process of checking a modelling output against a known reference model, is an important step in model development for the simulation of manufacturing processes. This manuscript provides details of a code-to-code verification between two thermal models used for simulating t...

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Main Authors: A. M. V. Harley, S. H. Nikam, H. Wu, J. Quinn, S. McFadden
Format: Article
Language:English
Published: Copernicus Publications 2020-04-01
Series:Mechanical Sciences
Online Access:https://www.mech-sci.net/11/125/2020/ms-11-125-2020.pdf
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author A. M. V. Harley
S. H. Nikam
H. Wu
J. Quinn
S. McFadden
author_facet A. M. V. Harley
S. H. Nikam
H. Wu
J. Quinn
S. McFadden
author_sort A. M. V. Harley
collection DOAJ
description <p>Verification, the process of checking a modelling output against a known reference model, is an important step in model development for the simulation of manufacturing processes. This manuscript provides details of a code-to-code verification between two thermal models used for simulating the melting and solidification processes in a 316&thinsp;L stainless steel alloy: one model was developed using a non-commercial code and the Finite Volume Method (FVM) and the other used a commercial Finite Element Method (FEM) code available within COMSOL Multiphysics<sup>®</sup>. The application involved the transient case of heat-transfer from a point heat source into one end of a cylindrical sample geometry, thus melting and then re-solidifying the sample in a way similar to an autogenous welding process in metal fabrication. Temperature dependent material properties and progressive latent heat evolution through the freezing range of the alloy were included in the model. Both models were tested for mesh independency, permitting meaningful comparisons between thermal histories, temperature profiles and maximum temperature along the length of the cylindrical rod and melt pool depth. Acceptable agreement between the results obtained by the non-commercial and commercial models was achieved. This confidence building step will allow for further development of point-source heat models, which has a wide variety of applications in manufacturing processes.</p>
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spelling doaj.art-09a82a4890614a32ad7aa7910ece95e32022-12-21T17:31:51ZengCopernicus PublicationsMechanical Sciences2191-91512191-916X2020-04-011112513510.5194/ms-11-125-2020Code-to-code verification for thermal models of melting and solidification in a metal alloy: comparisons between a Finite Volume Method and a Finite Element MethodA. M. V. HarleyS. H. NikamH. WuJ. QuinnS. McFadden<p>Verification, the process of checking a modelling output against a known reference model, is an important step in model development for the simulation of manufacturing processes. This manuscript provides details of a code-to-code verification between two thermal models used for simulating the melting and solidification processes in a 316&thinsp;L stainless steel alloy: one model was developed using a non-commercial code and the Finite Volume Method (FVM) and the other used a commercial Finite Element Method (FEM) code available within COMSOL Multiphysics<sup>®</sup>. The application involved the transient case of heat-transfer from a point heat source into one end of a cylindrical sample geometry, thus melting and then re-solidifying the sample in a way similar to an autogenous welding process in metal fabrication. Temperature dependent material properties and progressive latent heat evolution through the freezing range of the alloy were included in the model. Both models were tested for mesh independency, permitting meaningful comparisons between thermal histories, temperature profiles and maximum temperature along the length of the cylindrical rod and melt pool depth. Acceptable agreement between the results obtained by the non-commercial and commercial models was achieved. This confidence building step will allow for further development of point-source heat models, which has a wide variety of applications in manufacturing processes.</p>https://www.mech-sci.net/11/125/2020/ms-11-125-2020.pdf
spellingShingle A. M. V. Harley
S. H. Nikam
H. Wu
J. Quinn
S. McFadden
Code-to-code verification for thermal models of melting and solidification in a metal alloy: comparisons between a Finite Volume Method and a Finite Element Method
Mechanical Sciences
title Code-to-code verification for thermal models of melting and solidification in a metal alloy: comparisons between a Finite Volume Method and a Finite Element Method
title_full Code-to-code verification for thermal models of melting and solidification in a metal alloy: comparisons between a Finite Volume Method and a Finite Element Method
title_fullStr Code-to-code verification for thermal models of melting and solidification in a metal alloy: comparisons between a Finite Volume Method and a Finite Element Method
title_full_unstemmed Code-to-code verification for thermal models of melting and solidification in a metal alloy: comparisons between a Finite Volume Method and a Finite Element Method
title_short Code-to-code verification for thermal models of melting and solidification in a metal alloy: comparisons between a Finite Volume Method and a Finite Element Method
title_sort code to code verification for thermal models of melting and solidification in a metal alloy comparisons between a finite volume method and a finite element method
url https://www.mech-sci.net/11/125/2020/ms-11-125-2020.pdf
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