NATURAL CONVECTION OF A NANOFLUID IN A CONICAL CONTAINER

Natural convection is simulated in a truncated cone filled with Cu-water nanofluid, pure water is considered as the base fluid with Pr=6.2 and (Cu) is the nanoparticle . Inclined and top walls have constant temperature where the heat source is located on the bottom wall of the conical container which is thermally insulated. A finite volume approach is used to solve the governing equations using the SIMPLE algorithm for different parameters such as Rayleigh number (103 , 104 , 105 and 106 ), inclination angle of inclined walls of the enclosure and heat source length (0.3L, 0.7L and L). The results showed an enhancement in cooling system by using a nanofluid, when conduction regime is assisted. The inclination angle of inclined sidewall and heat source length affect the heat transfer rate and the maximum temperature.