Combined Convection in a Lid-Driven Cavity with an Inside Obstacle Subjected to Al2O3-Water Nanofluid: Effect of Solid Volume Fraction and Nanofluid Variable Properties
M. Hemmat Esfea, A. Zare Ghadi b, S.S. Mirtalebi Esforjani a and M. Akbari a
aDepartment of Mechanical Engineering, Najafabad Branch, Islamic Azad University, Isfahan, Iran
bDepartment of Mechanical Engineering, Jouybar Branch, Islamic Azad University, Jouybar, Iran
Received: January 3, 2013; In final form: May 17, 2013
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The phenomena of combined convection within a lid-driven square cavity subjected to variable properties of nanofluid having a hot obstacle have been analyzed numerically. Finite volume method with SIMPLER algorithm is employed for solving the Navier-Stokes and energy balance equations. In this paper diameter of nanoparticles are uniform, constant and equal to 47 nm. Wide range of parameters such as Richardson number (0.01

DOI: 10.12693/APhysPolA.124.665
PACS numbers: 47.11.-j, 47.11.Df, 47.15.Rq, 47.55.pb, 47.61.-k