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International Heat Transfer Conference 13
Graham de Vahl Davis (open in a new tab) School of Mechanical and Manufacturing Engineering, University of New South Wales, Kensington, NSW, Australia
Eddie Leonardi (open in a new tab) Computational Fluid Dynamics Research Laboratory, School of Mechanical and Manufacturing Engineering, The University of New South Wales, Sydney, Australia 2052

ISSN Online: 2377-424X

ISBN CD: 1-56700-226-9

ISBN Online: 1-56700-225-0

UNCERTAINTY QUANTIFICATION IN HEAT AND MASS TRANSFER

page 8
DOI: 10.1615/IHTC13.p5.150
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RESUMO

Numerical calculations of a one-dimensional porous foam burner subject to random variables are reported. The heat transfer coefficient was assumed to be a random variable and the stochastic process was represented using the polynomial chaos expansion. Two types of approximations are discussed to model the non-linear Arrhenius reaction term in the one-dimensional scalar transport equations. The results show the potential of the polynomial chaos expansions for heat engineering applications. The used methodology allowed to quantify the uncertainty due to the random heat transfer coefficient and to identify the locations of higher rms temperatures.

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