Abstract
The MHD flow of water-based nanofluids across a horizontal circular cylinder is investigated in the presence of magnetic field numerically using an implicit finite-difference method. The Buongiorno model is employed to incorporate the effects of Brownian motion and thermophoresis effects. The uniform heat and mass flux boundary conditions are employed. The governing boundary layer equations are converted into a system of non-similar differential equations by using suitable transformations. The effects of the pertinent parameters on the dimensionless velocity, temperature, the local Nusselt and Sherwood numbers are reported. It is found that the skin friction and local Nusselt numbers are strong function of Reynolds and Hartmann numbers whereas local Sherwood number is a strong function of nanofluids parameters.