Entropy Generation Optimization in Couple Stress Fluid Flow with Variable Viscosity and Aligned Magnetic Field

This study explores the influence of an inclined magnetic field and variable viscosity on entropy generation in steady flow a couple stress fluid channel. The walls channel are stationary non-isothermal. is driven due to pressure gradient gravitational force. Reynold’s model for temperature-dependent was used. dimensionless, non-linear coupled equations momentum energy solved, we obtained analytical solution velocity temperature fields. Bejan number were evaluated. variation pertinent parameters quantities discussed graphically. rate volume flow, skin friction coefficient, Nusselt at surfaces calculated their variations through surface graphs. From results, it noticed that can be minimized by increasing difference parameters. findings current some special cases precise agreement with previous investigation.