Mathematical model of steady incompressible nanofluid for heat transfer applications using MATLAB®

Adding different nanoparticles to the base fluid is the latest technique for increasing the thermal performance of conventional fluids. In this study, the flow and heat transfer of nanofluids over a rotating disk with uniform stretching rate are studied. The non-Fourier flux, magnetic field, and thermal radiation are considered. The nanoparticles used here are graphene, copper, and Al2O3, with water used as the base fluid. The governing equations are transformed by applying Von Karman transformation and then solved numerically through a boundary value problem solver (bvp5c). The authors also provide some of the results of cases with and without magnetic fields and describe variations in both situations. For the engineering perspectives, the authors also calculate the governing physical quantities such as skin friction factor coefficients and local Nusselt number for all three cases (graphene, copper, and aluminum oxide nanoparticles). The results indicate that with increases in the stretching strength parameter, the skin friction, and the local Nusselt number, the velocity in radial and axial directions increases, whereas the velocity in the tangential direction and the thermal boundary layer thickness decrease, respectively. The simulation is performed by mixing the water with three different solid nanoparticles, copper, aluminum oxide, and graphene, wit variations found in the three cases. © 2022 Elsevier Inc. All rights reserved.