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FEM simulations of temperature evolution in aluminum extrusion: Identification of numerical problems in HyperXtrude

FEM simulations of temperature evolution in aluminum extrusion: Identification of numerical problems in HyperXtrude

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Konferansebidrag og faglig presentasjon
Sammendrag
The aim of this paper is to study how to identify numerical problems causing artificial heat generation in the Altair HyperXtrude FEM software. This software has been used to model the three dimensional transient problem of hot aluminum extrusion in order to study the flow balance and temperature distribution in the aluminum. The results show a very high sensitivity to mesh resolution in the billet. Divergence, rather than convergence of the solution with increasing mesh refinement indicates that HyperXtrude could have a problem.
Språk
Engelsk
Forfatter(e)
Institusjon(er)
  • SINTEF Industri / Metallproduksjon og prosessering
Presentert på
MekIT' 09
Sted
NTNU, Trondheim
Dato
25.05.2009 - 26.05.2009
Arrangør
NTNU
År
2009
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