Abstract
The goal of this study was to determine the effect that NP shape has on the entropy produced by Al2O3−H2O nanofluid across a permeable MHD stretching sheet under the conditions of quadratic velocity, thermal radiation, and viscous dissipation. H2O is the cold fluid, while Al2O3−H2O nanofluid, which includes five various NP forms (oblate spheroid, platelet, blade, brick, and cylinder), is the hot fluid. Nanofluid containing Al2O3−H2O sees widespread use in industrial production because of its remarkable capacity to boost heat transfer. Via a sequence of similarity transformations, the controlling PDEs are converted into a nonlinear differential system of linked ODEs. An efficient implementation of the Runge-Kutta method for getting numerical solutions may be found in the code, which is written in MATLAB. As the φ grows from 0% to 2% or from 0% to 4%, the wall shear stress rises by roughly 6.3% and 12.6%, respectively, in the area that is behind the stretched sheet. Including the magnetic effect in the boundary layer flow at a rate of around 5%, the rate of convective heat transfer increases by about 16.4%. In comparison to nanofluids containing brick-, blade-, cylinder-, and platelet-shaped NPs, the Os-shaped NP nanofluid experiences a greater increase in thermal entropy on the cold fluid side.
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