MHD Reiner–Philippoff Fluid over a Shrinking Surface with the Impact of Aluminium Alloy Nanoparticles

The study of fluid flow and heat transfer over shrinking surfaces is crucial for applications in materials processing, thermal management, and nanotechnology.  When combined with hybrid nanofluids, these systems offer enhanced heat transfer and boundary layer control, making them valuable for advanced energy systems and microfluidic technologies.  This manuscript primarily investigates the behavior of MHD Reiner--Philippoff (RP) fluid, particularly emphasizing the role of AA7075–AA7072/methanol hybrid nanofluid on a permeable shrinking surface.  The original model, expressed as partial differential equations (PDEs), is converted into ordinary differential equations (ODEs) using suitable transformations.  The resulting mathematical model is then solved using the bvp4c solver in Matlab.  The results demonstrated that the addition of hybrid nanoparticles had a beneficial effect on the system, increasing skin friction by 9.67% while improving thermal performance by roughly 1.27%.  Additionally, skin friction and heat transfer rate increased as the magnitude of the magnetic parameter enlarged.

hybrid nanofluid
Reiner–Philippoff fluid
MHD
aluminium alloy
dual solutions
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