Numerical investigation of hydrodynamic nanofluid convective flow in a porous enclosure
Keywords:
Free convection, Hartmann number, Volume fraction, Nusselt numberAbstract
In this study, the steady state behavior of natural convection transport on a nanofluid in square enclosure was studied. The model
equations were solved using Comsol Multiphysics; a solver for partial differential Navier–Stokes equations based on a two-dimensional Finite Element Method (FEM) over a range of Rayleigh numbers (103-106). Impact of the Rayleigh Number, the Darcy Number, the porosity, the solid fraction volume of porous medium and the nanoparticle concentration on natural convection are depicted. Obtained Results reveal that convection mode increases with rise of Rayleigh number. The simulated results were compared with other numerical data from the literature, which indicate that good agreement is founded.
References
Bejan A., Second law analysis in heat transfer, Energy, 5 (1980) 721–732.
Bejan A., Entropy generation minimization, CRC Press, Boca Raton, Fl, 1996
Narusawa U., The second-law analysis of convective pattern change in a rectangular cavity, J. Fluid Mech., 392 (1999) 361–377
Magherbi M., Abbassi H. and Ben Brahim A., Entropy generation at the onset of natural convection, Int. J. Heat Mass Transfer, 46 (2003) 3441–3450
Famouri M. and Hooman K., Entropy generation for natural convection by heated partitions in a cavity, Int. Commun. Heat Mass Transfer, 35 (2008) 492–502
Mike Coyle, 2011, A Parametric Study of Laminar Natural Convection in Cubical Liquid-Filled Enclosures, Honors Project, Spring 2011, Department of Mechanical Engineering: https://www.uakron.edu/honors/honorsprojects/ProjectDocs/CoyleMike2.pdf
Kaluri R. S. and Basak T., Analysis of entropy generation for distributed heating in processing of materials by thermal convection, Int. J. Heat Mass Transfer, 54 (2011) 2578–2594.
Khanafer K., Vafai K., Lightstone M., Buoyancy-driven heat transfer enhancement in a two-dimensional enclosure utilizing nanofluids, Int. J.Heat Mass Transfer 46 (19) (2003) 3639–3653
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