The present study was conducted to evaluate the thermal efficiency of the wavy channel. To achieve this goal, heat transfer (HT), friction factor, and Performance Evaluation Criterion (PEC) of nanofluid flow were investigated in a semi-porous wavy channel in the presence of a magnetic field (MF). The nanofluid flow was considered to be laminar, steady state, and incompressible. The Reynolds number (Re) 200 ≤ Re ≥ 500 was considered. In this numerical research, the finite volume method and fluent software are used to solve the governing equations. Effects of changes in a MF, porous media (PM), and Re number were studied. The results showed that in all cases, with the increase in the MF intensity, the pressure drop and the friction factor increased; but the Nusselt number (Nu) also increased well, and as a result, the overall hydraulic-thermal performance improved. By increasing the Hartmann number (Ha) from 0 to 10, the hydraulic- thermal performance of the channel increased from 13 to 56%. The increase in Darcy’s number (Da) and permeability in the PM caused an increase in the Nu and a decrease in the friction factor. So that the lowest hydraulic-thermal performance was at 0.00001 Da and the best at 0.01 Da. According to the obtained results, the present work can provide useful guidelines for the design of heat channels with MF and PM.
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