Laminar forced convection heat transfer during pulsating nanofluid jet impingement onto a partially heated surface immersed in a porous layer is presented in this study. For this purpose, the Brinkman–extended Darcy model is adopted. The base fluid and the nanoparticles are taken to be in local thermal equilibrium with the same velocities and temperatures. The local thermal equilibrium is also assumed between the nanofluid and the porous matrix. Simulation results are validated thoroughly. Thereafter, the consequences of the pulsation frequency and amplitude, the Reynolds number, the Darcy number, the medium porosity, the nanoparticles fraction, and the geometric ratio on thermal performance of the system are analyzed. It is found that direct relations exist between the heat transfer rate and the pulsation amplitude, the medium porosity, the Darcy number, the nanoparticles fraction, and the geometric ratio whereas the pulsation frequency contributes neutrally. The presented results demonstrate that superimposing pulsation on the mean flow augments heat transfer as compared to an equivalent steady case.
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