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Experimental investigation of flow assisted mixed convection in high porosity foams
Pradeep M. Kamath,
Published in
2010
Pages: 437 - 443
Abstract
This paper reports the results of an experimental study on flow assisted mixed convection in aluminium metal foams of different pores per inch (PPI) with high porosity in the range of 0.9 to 0.95. With a view to delineate the flow regimes, experiments are conducted for Richardson number (Ri) range of [0.001≤Ri≤700J. Based on a parametric study with a large number of experimental data, a correlation for Nusselt number of the porous medium as a function of Richardson number, Peclet number, and the porosity is developed. In order to quantify the enhancement of the heat transfer rate with the use of porous medium, correlations for (i) Nusselt number and (ii) ratio of heat transfer rate with and without porous medium have also been developed. The enhancement ratio is always more than one which clearly indicates that metal foams have good heat transfer enhancement capability. © 2010 IEEE.
About the journal
Journal2010 3rd International Conference on Thermal Issues in Emerging Technologies, Theory and Applications - Proceedings, ThETA3 2010
Open AccessNo
Concepts (20)
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    ENHANCEMENT RATIOS
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    Experimental data
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    Experimental investigations
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    Experimental studies
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    Flow regimes
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    Heat transfer enhancement
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    Heat transfer rate
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    HIGH POROSITY
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    Metal foams
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    On flow
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    Parametric study
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    PORES PER INCHES
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    Porous medium
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    Richardson number
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    Foams
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    Metals
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    Mixed convection
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    Nusselt number
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    Specific heat
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    Porosity