Effects of Magnetic Field and Ohmic Heating on Mixed Convection over a Vertical Heated Plate

ABSTRACT The purpose of this study is to investigate the synergistic impacts of external magnetic fields (MHD) and ohmic heating on mixed convection phenomena occurring over a vertical heated plate situated within a porous medium, in conjunction with analyzing the implications of internal heat generation (IHG). The presence of convective boundary layer flows in Cu-H2O nanofluids is essential for comprehending the flow characteristics of various physical systems and practical applications. such as semiconductor wafers, electronic chips, thermal insulation, and nuclear reactors. This work utilizes a Bvp4c method to solve the governing nonlinear differential equations. In this study, the effects of MHD, ohmic, radiation on the flow characteristics and thermal transfer of the different nanoparticles are investigated. The results show that the velocity profile increases with increasing solid volume fraction, heat absorption, and magnetic parameter but the opposite trend is observed in the temperature profile with increasing volume fraction and heat generation as observed in both UP and VP cases. For all radiation parameter values, the Nusselt number increases with the Grashof number due to enhanced buoyancy-driven heat transfer. Key Words: Mixed convection, Nanofluids, Variable fluid properties, Radiation, Ohmic effect.