Investigation on natural convective flow of ethylene glycol nanofluid containing nanoparticles Fe3O4 in a porous cavity with radiation.

This paper addresses free convection in cavity filled with ethylene glycol(EG) nanofluid containing Fe3O4 in the presence of radiation. Galerkin's method of finite elements is employed to solve the governing differential equations. Numerical results are computed for certain pertinent parameters: Rayleigh number (10-2500), radiation parameter (1-10) and nanofluid volume fraction (0-0.3), and presented in the graphical form. The results reveal that flow intensity and heat transfer rate in EG-Fe3O4 nanofluid are increasing functions of Rayleigh number and radiation. It is noted that high Rayleigh number and radiation are needed to affect flow intensity. [ABSTRACT FROM AUTHOR]