A new multifield finite element method in steady state heat analysis

A new original primal-mixed finite element approach and related hexahedral finite element HC:T/q for the analysis of behavior of solid bodies under thermal loading is presented. The essential contributions of the present approach is the treatment of temperature and heat flux as fundamental variables...

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Bibliographic Details
Published in:Thermal science 2005, Vol.9 (1), p.111-130
Main Authors: Mijuca, Dubravka, Ziberna, Ana, Medjo, Bojan
Format: Article
Language:English
Subjects:
Finite element method
Heat flux
Heat treatment
Hexahedral finite elements
Mathematical analysis
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Summary:A new original primal-mixed finite element approach and related hexahedral finite element HC:T/q for the analysis of behavior of solid bodies under thermal loading is presented. The essential contributions of the present approach is the treatment of temperature and heat flux as fundamental variables that are simultaneously calculated, as well as capability to introduce initial and prescribed temperature and heal flux. In order to minimize accuracy error and enable introductions afflux constraints, the tensorial character of the present finite element equations is fully respected. The proposed finite element is subjected to some standard benchmark tests in order to test convergence of the results, which enlighten the effectiveness and reliability of the approach proposed.
ISSN:0354-9836
2334-7163
DOI:10.2298/TSCI0501111M