Journal
TRANSPORT IN POROUS MEDIA
Volume 106, Issue 3, Pages 595-610Publisher
SPRINGER
DOI: 10.1007/s11242-014-0415-3
Keywords
Free convection; Square cavity; Porous media; Nanofluids; Numerical method
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Funding
- Ministry of Education and Science of the Russian Federation [13.1919.2014/K]
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Free convection in a square differentially heated porous cavity filled with a nanofluid is numerically investigated. The mathematical model has been formulated in dimensionless stream function and temperature taking into account the Darcy-Boussinesq approximation. The Tiwari and Das' nanofluid model with new more realistic empirical correlations for the physical properties of the nanofluids has been used for numerical analysis. The governing equations have been solved numerically on the basis of a second-order accurate finite difference method. The developed algorithm has been validated by direct comparisons with previously published papers and the results have been found to be in good agreement. The results have been presented in terms of the streamlines, isotherms, local, and average Nusselt numbers at left vertical wall at a wide range of key parameters.
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