Journal
INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER
Volume 37, Issue 6, Pages 575-580Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.icheatmasstransfer.2010.01.015
Keywords
Effective thermal conductivity; Metal foam
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Funding
- Air-Conditioning and Refrigeration Technology Institute [06030]
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Metal foams have emerged as promising materials for use in heat sink and heat exchanger applications. Boomsma and Poulikakos put forward an important and widely adopted model for the effective thermal conductivity of metal foams; however, the model contains errors in its development and presentation. Whether partially or fully corrected, the model does not provide accurate predictions of the effective thermal conductivity of metal foams. Because the model fails even when corrected, its mechanistic basis is reviewed, and an extension to the approach is put forward to account for ligament orientation in calculating effective thermal conductivity. This modification provides predictions of k(eff) that are much more accurate than the original Boomsma-Poulikakos model. (C) 2010 Elsevier Ltd. All rights reserved.
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