Inferring optimal proportion for efficient heat transfer and depleted entropy using MgO-Ag/water hybrid nanofluid over convectively heated stretching sheet embedded in a porous medium

Abstract

Through the entropy analysis, the present work tends to suggest the optimal range and proportion of trending hybrid nanofluid with MgO-Ag/water combination focused over the permeable slippery and convectionally heated penetrable stretching sheet under hydromagnetic and radiative inferences. Keeping heat transfer ability and minimal entropy loss as the two vital goals of this work, hybrid nanofluid (MgO-Ag/Water) gives the additional privilege to reconstruct the physical scenario. Optimal Homotopy Asymptotic Method (OHAM) and numerical quadrature with the Rung Kutta Felhberg (RKF) integration scheme were engaged to tackle the model two-point bvp. The computational outcome depicts the overall flow structure with enhanced heat transfer characteristics including entropy generation rate is pictorially displayed and discussed. In view of various physical aspects, three effective hybrid nanofluid combinations were studied for entropy losses. Among that 50:50 ratio of HNF3 hybrid combo nano level fluid gives the optimal and efficient thermal transference rate with minimal loss in the entropy. Further, hybrid nanofluid achieves a better heat transfer rate up to 28.70% while comparing base fluid and up to 13.34% more than that of traditional nanofluid.