Numerical Study of fluid flow and heat transfer of mixed convection and entropy generation in a L-shaped cavity filled with nanofluid

In this work, the fluid flow and heat transfer and entropy generation of mixed convection in "Γ" -shaped cavity filled with Al2O3-Water-EG have been studied. For this propose, we used from a FORTRAN program based on finite volume method (FVM) and SIMPER algorithm. This investigation have done for volume fraction from 0 to 0.04, Richardson number between 0.01 and 100, and Grashof number equal to 104 for two situation, moving top wall with velocity of U from right to left and moving left vertical wall equal to V from up to bottom. In all cases average Nusselt number increase with adding of nanoparticle or decreasing of Richardson number. This phenomenon is sensitive with reduction of Richardson number. In addition for all Richardson number and for two cases total entropy generation and entropy generation due to conduction increase with nanoparticle volume fraction.