Journal
NANOSCALE AND MICROSCALE THERMOPHYSICAL ENGINEERING
Volume 15, Issue 2, Pages 81-94Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/15567265.2010.549931
Keywords
natural convection; porous medium; nanofluid
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Nanofluid refers to a liquid containing a dispersion of submicronic solid particles or nanoparticles. Nanofluids display a thermal conductivity enhancement. This phenomenon suggests the possibility of using nanofluids in electronic cooling and advanced nuclear systems. In this article, a boundary layer analysis is presented for the natural convection past a nonisothermal vertical plate in a porous medium saturated with a nanofluid. Numerical results for friction factor, surface heat transfer rate, and mass transfer rate are presented for parametric variations of the buoyancy ratio parameter, Nr; Brownian motion parameter, Nb; thermophoresis parameter, Nt; Lewis number, Le; and the power law exponent, . The dependency of the friction factor, surface heat transfer rate (Nusselt number), and mass transfer rate on these parameters is discussed.
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