Abstract
This article is concerned with the simultaneous effects of MHD and radiation on the boundary layer flow of micropolar nanofluid over a stretching sheet. The stretching velocity is assumed to vary exponentially. The considered Buongiorno nanofluid model encompasses Brownian movement and thermophoresis. Heat transfer is studied under thermal radiation and dissipation aspects. Porous medium term is included to capture Darcy's effects. The nonlinear partial differential equations and selected boundary conditions are transformed first into the dimensionless form using transformations, then the resulting system is solved analytically using the homotopy analysis method (HAM). The importance of physical variables is elaborated through pictorial representations. It is noticed that consideration of radiation aspect improves the fluid temperature.