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Materials 2016, 9(2), 94; doi:10.3390/ma9020094

How to Study Thermal Applications of Open-Cell Metal Foam: Experiments and Computational Fluid Dynamics

1
Flow, Heat and Combustion Mechanics, Ghent University, Sint-Pietersnieuwstraat 41, Ghent 9000, Belgium
2
NV Bekaert SA, Bekaertstraat 2, Zwevegem 8550, Belgium
These authors contributed equally to this work.
*
Author to whom correspondence should be addressed.
Academic Editor: Dirk Lehmhus
Received: 7 December 2015 / Revised: 15 January 2016 / Accepted: 21 January 2016 / Published: 3 February 2016
(This article belongs to the Special Issue Metal Foams: Synthesis, Characterization and Applications)
View Full-Text   |   Download PDF [31328 KB, uploaded 3 February 2016]   |  

Abstract

This paper reviews the available methods to study thermal applications with open-cell metal foam. Both experimental and numerical work are discussed. For experimental research, the focus of this review is on the repeatability of the results. This is a major concern, as most studies only report the dependence of thermal properties on porosity and a number of pores per linear inch (PPI-value). A different approach, which is studied in this paper, is to characterize the foam using micro tomography scans with small voxel sizes. The results of these scans are compared to correlations from the open literature. Large differences are observed. For the numerical work, the focus is on studies using computational fluid dynamics. A novel way of determining the closure terms is proposed in this work. This is done through a numerical foam model based on micro tomography scan data. With this foam model, the closure terms are determined numerically. View Full-Text
Keywords: characterization; micro tomography scan; open-cell foam; experimental; numerical; volume averaging theory (VAT); repeatability characterization; micro tomography scan; open-cell foam; experimental; numerical; volume averaging theory (VAT); repeatability
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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De Schampheleire, S.; De Jaeger, P.; De Kerpel, K.; Ameel, B.; Huisseune, H.; De Paepe, M. How to Study Thermal Applications of Open-Cell Metal Foam: Experiments and Computational Fluid Dynamics. Materials 2016, 9, 94.

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