Computational investigation of heat transfer in a flow subjected to magnetohydrodynamic of Maxwell nanofluid over a stretched flat sheet with thermal radiation

The main objective of this paper is to numerically investigate the results of a mathematical model for unsteady magnetohydrodynamics (MHD) boundary layer flow over a porous stretching surface. The analysis of non-Newtonian Maxwell nanofluid is presented involving the influence of porous media, thermal radiation, viscous dissipation, and joule heating through the Keller box method. Partial slip and convective conditions are also enacted near the boundary. After using the similarity technique on the governing system of nonlinear partial differential equations, the Keller box method is then implemented to find out the numerical solution for copper-water Cu-H2O and molybdenum disulfide MoS2-H2O nanofluids. The impact of various governing flow parameters is interpreted numerically and illustrated graphically on the interaction of particles. Additionally, numerical results are further utilized to calculate the skin friction coefficient and heat transfer rate at the boundary. Finally, in a limiting case, the acquired numerical results are compared with existing results. The remarkable finding of the present study is that Cu-H2O based nanofluid is detected as a superior thermal conductor instead of MoS2-H2O based nanofluid.

Automated summary

The main objective of this paper is to numerically investigate the results of a mathematical model for unsteady magnetohydrodynamics (MHD) boundary layer flow over a porous stretching surface. The analysis of non-Newtonian Maxwell nanofluid is presented involving the influence of porous media, thermal radiation, viscous dissipation, and joule heating through the Keller box method. The obtained numerical results are compared with existing results, and it is found that the Cu-H2O based nanofluid exhibits superior thermal conductivity.