Second Grade Nanofluids have wide applications to both engineering and industry in general, making them important to study. Particularly, we investigate effects of heat transfer and a magnetic field over materials either composed of nanoparticles or coated in nanofluids. Understanding the effects of nanofluid behaviour between rotating disks or over expanding and contracting sheets has profound industrial consequences. An investigation into entropy optimization is conducted and key results pertaining to axial velocity, temperature profiles and magnetic influence are discussed. The work discusses results obtain from modelling using the Cattaneo-Christov heat flux model. The presentation will provide insight into practical applications and inferences of the results arising from research, as well as discussing the mathematical approaches. At the present time, we are also working to develop new results for nanofluid coated materials as part of the manufacturing of more effective Covid-19 face masks.
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