Theoretical analysis of free convection in a partially foam-filled enclosure

Free convection in a partially foam-filled enclosure is theoretically investigated. Two independent approaches are undertaken. Scale analysis has been conducted along with a thermal resistance network model to predict the performance of metal foams as heat sinks to remove heat from a horizontal heat...

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Bibliographic Details
Published inHeat and mass transfer Vol. 55; no. 7; pp. 1937 - 1946
Main Authors Hooman, Kamel, Sadafi, Hosein, Mancin, Simone, Righetti, Giulia, Xin, Gongming
Format Journal Article
LanguageEnglish
Published Berlin/Heidelberg Springer Berlin Heidelberg 01.07.2019
Springer Nature B.V
Subjects
Computational fluid dynamics
Enclosures
Engineering
Engineering Thermodynamics
Fluid flow
Foamed metals
Free convection
Heat and Mass Transfer
Heat sinks
Industrial Chemistry/Chemical Engineering
Metal foams
Original
Thermal resistance
Thermodynamics
Viscous drag
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Summary:Free convection in a partially foam-filled enclosure is theoretically investigated. Two independent approaches are undertaken. Scale analysis has been conducted along with a thermal resistance network model to predict the performance of metal foams as heat sinks to remove heat from a horizontal heated plate. Results from scale analysis were used to predict the flow regime transition from that of the viscous drag-dominated to that of form-drag dominated flow. Predictions from the two approaches are then cross-validated and compared against available experimental data in the literature. A good degree of agreement was observed. Finally, using the theoretical models, a parametric study was conducted to investigate the effects of different parameters on the Nusselt number.
ISSN:0947-7411
1432-1181
DOI:10.1007/s00231-018-2466-4