This work presents a study on double-diffusive free convection in a porous square cavity using the thermal equilibrium model. Transport equations are discretized using the control-volume method, and the system of algebraic equations is relaxed via the SIMPLE algorithm. The effect of ks/kf on average Nusselt and Sherwood values was investigated. Results show that increasing ks/kf affects Nuw and Shw boosting mass transfer at the expense of reducing overall heat transport across the enclosure.
Effect of Thermal Conductivity Ratio on Laminar Double-Diffusive Free Convection in a Porous Cavity
Instituto Tecnológico de Aeronáutica—ITA,
São José dos Campos, SP 12228-900, Brazil
Contributed by the Heat Transfer Division of ASME for publication in the JOURNAL OF HEAT TRANSFER. Manuscript received October 28, 2016; final manuscript received April 20, 2017; published online June 1, 2017. Assoc. Editor: Antonio Barletta.
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Carvalho, P. H. S., and de Lemos, M. J. S. (June 1, 2017). "Effect of Thermal Conductivity Ratio on Laminar Double-Diffusive Free Convection in a Porous Cavity." ASME. J. Heat Transfer. October 2017; 139(10): 104506. https://doi.org/10.1115/1.4036617
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