Abstract
Flow and heat transfer involving hybrid nanofluids has been applied in a variety of technological and engineering applications. Thus, this work deeply features the mixed convection flow behavior and thermal characteristics of water based Cu-Al2O3 hybrid nanofluid towards a vertical and permeable wedge. The governing model is developed based on the physical and theoretical assumptions which are then, simplified into a set of ordinary differential equations (ODEs). The dual steady flow solutions are obtained using the bvp4c solver in the Matlab software. The opposing flow admits dual (first and second) solutions, while the assisting flow and pure force convection only produce a unique solution. The validity of the first solution is justified by the stability analysis. Besides, the wedge and suction parameters are the main factors that influence the flow and thermal progress of the hybrid nanofluid. Meanwhile, the Cu-Al2O3/water has a greater skin friction coefficient and heat transfer rate as compared to the Cu-water and Al2O3/water nanofluids which shows the significant role of hybrid nanofluid in the flow progress and thermal growth under the vertical wedge geometry case.
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