Thermophysical analysis of silver–gold/water nanofluid stagnation point flow across an exponentially extended porous sheet with chemical reaction

The request for effective heat transport mechanisms has driven extensive study into hybridization nanofluids, which provide higher thermal properties compared to traditional liquids. In particular, gold (Au) and silver (Ag) nanoparticles, due to their exceptional stability and thermal conductivity, have gained substantial attention in advanced thermal management usefulness. Thus, this research investigates the magnetohydrodynamic (MHD) transmission of heat and mass characteristics of stagnated point flow of an electrically conducting nanofluid fluid flow along a porous medium with elongated, considering chemical reaction. For a precise calculation, the Tiwari–Das model is adopted with the incorporated Silver (Ag) and Gold (Au) nanoparticles with water as the base fluid. The flow-controlling dimensional PDEs are minimized to dimensionless ODEs using appropriate similarity variables. A detailed numerical solution for momentum, temperature, and nanoparticle concentration is done utilizing the modified partitioning weighted residual scheme using the MAPLE package. The obtained results were compared with previously published findings and demonstrated a good agreement. Thus, the displayed graphical outcomes serve to comprehensively show and build upon the effect of pertinent flow effects. Enhancing the porosity, stretching ratio, and slip parameters encourages the fluid velocity, while a rise in the Hartmann number, thermal radiation, and Eckert number augments heat distribution at about 2.63% higher than the unitary nanofluid. The skin friction is increased as the Hartmann number is raised.