Abstract
This paper investigates forced convection of water/Al2O3 nanofluid flow in a microchannel with inclined cross-flow injection on the lower wall. There are a number of injecting holes on its lower wall. Other walls are insulated. The effect of different parameters including injection angle and number of injections on slip flow and heat transfer is investigated. It is concluded that increasing the injection angle up to 94° lead to an enhancement of the slip velocity and the Nusselt number on the microchannel walls. The results demonstrate that maximum heat transfer corresponds to the injection angle of 94°. It is revealed that the variation of Nusselt number decreases with the number of injection. As the volume fraction of nanoparticles increases, the heat transfer rate increases.
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