Three-dimensional natural convection of CNT-water nanofluid confined in an inclined enclosure with Ahmed body

A finite volume based three dimensional numerical studies on the heat transfer due to natural convection inside the inclined cubical cavity filled with CNT-water nanofluid is solved by vorticity-vector potential formalism. The enclosure contains an Ahmed body at its middle with differentially heated vertical walls. The other walls are adiabatic. The effect due to Rayleigh number (10(3) <= Ra <= 10(5)), volumetric fraction (0 = f = 0.05) of CNT particles, angle of incidence of enclosure (0 degrees <= gamma <= 180 degrees) and thermal conductivity ratio (0.01 <= R-c <= 100) are analyzed. The results of fluid flow with single phase model are elucidated with Particle trajectories, Velocity vectors, Iso-surfaces of temperature and Nusselt number. CNT-particles enhanced the heat transfer in all the considered cases. Maximum average Nusselt number is reported when the angle of inclination is 30 degrees and 150 degrees. The variation in thermal conductivity ratio has a least effect on convection.