Abstract
The wire coating process enhances wire durability, safety, and performance, preventing corrosion and providing insulation against abrasion, temperature changes, and chemicals. To evaluate process quality, characteristics like fluid flow and heat transfer in the die are analysed. This work focuses on understanding molten polymer rheology via momentum, thermal distribution, and nanoparticle volume fraction profiles. A mathematical model is developed for a Sisko fluid using the Buongiorno model, which includes temperature-dependent thermophysical properties. The governing equation is reduced to dimensionless form using non-dimensional parameters and solved using the numerical technique. The results are visualised graphically for the parameters like Sisko fluid parameter, viscosity parameter (between 0 and 1), Brinkmann number, Hartmann number (between 2 and 10) using 2D and 3D plots. The study shows that the thermal field is enhanced by nanofluid factors, which subsequently enhances the heat transfer rate in the presence of nanoparticles. The optimization of the responses: shear stress rate ( S rz ) and rate of heat transfer ( Nur ) is carried out concurrently using the Surface Response Method. Furthermore, a sensitivity analysis has been conducted. The findings indicate that the viscosity parameter significantly impacts the sensitivity of the both shear stress rate and heat transfer rate.
Published Version
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