Numerical investigation on transient third-grade magnetized nanofluid flow and radiative convection heat transfer from a stationary/moving cylinder: nanomaterial and nanoparticle shape effects

In this study, a mathematical model is developed for analyzing the time-dependent magneto-convective flow and heat transfer characteristics of an electrically conducting (functional) third-grade Reiner-Rivlin non-Newtonian nanofluid from moving or stationary hot cylinder in presence magnetic field thermal radiation. A well-tested convergent Crank–Nicolson type finite difference algorithm employed to solve transformed, nonlinear boundary value problem. The Tiwari-Das volume fraction adopted nanoscale effects Rosseland algebraic flux radiative effects. It has been shown that shape nanoparticles remarkably contributes enhancement transfer. Several metallic nanoparticle types such as Al2O3, Cu, TiO2 are examined. found investigation viscoelastic with results more than other nanoparticles. Lower velocity higher temperature values computed at transient conditions fluid parameter (Al2O3-SA). plots friction coefficients visualized surface cylinder. tabulated coefficient comparatively Detailed validation numerical scheme previous studies included. simulations find applications coating deposition (enrobing) nanomaterial high temperatures, functional synthesis, etc.