Paper Title
Mixed Convection Heat Transfer and Entropy Generation in a Vertical Cylinder Filled with Hybrid and Nanofluids

Abstract
This work deals with mixed convection and entropygeneration in a vertical cylinderfilledwith nanofluid (Al2O3/water) and hybridnanofluid (Al2O3-CuO/water). The cylinder'slower and upperwalls are maintained at a hot and cold temperature TH and TC, respectively. The upper disc isrotating. A FORTRAN code solved the governingequationsbased on the finite volume method. The results are validatedwithotherworksfound in the literature. Our results are presented in terms of streamlines, isotherms, velocity profiles, temperature, local and meanNusseltnumber for a Richardson number (Ri = 0.5), Reynolds number (100