Numerical investigation of magnetic field on forced convection heat transfer and entropy generation in a microchannel with trapezoidal ribs

In this study, the effects of adding trapezoidal ribs to microchannel on functionalized multi-walled nano-tubes/water nanofluid heat transfer are examined. The dimensionless slip coefficient (0–0.1), Reynolds number (50–400) and Hartmann (0–20) considered as independent variables along with entropy generation output parameters. simulation outcomes confirm that addition ribs, one hand, increases area and, other intensifies possibility vortex formation. presence a decreases potential thus reduces performance trapezoidal-wall compared base one. With increasing (Re), probability formation intensifies, which in turn diminishes positive using ribs. However, it is found that, (Ha) (β∗), strength weakened, consequently improved. Based numerical computations, at Re = 400, Ha 0 β∗ by 11.12%.