Abstract
In current work, we have analyzed the entropy generation for radiative spinning motion of Casson nanofluid. Swirling motion is caused by a stretchable cylinder, which is rotating with an angular velocity. For avoiding induced axial secondary flow the assumption of constant rotation of cylinder is imposed upon the flow system. In current analysis two contrasting phenomena, such as constant and variations in axial temperature at the surface of rotating cylinder have investigated. To control the rate of heat transfer, we have employed heat generation/ absorption, Joule heating effects and thermal radiation for modeled problem. Moreover, the Buongiorno model is also used for exploration of the Brownian and thermophoretic forces exerted by Casson nanofluid. Governing equations and subjected boundary conditions are shifted to system of nonlinear ODEs using suitable transformations. It is observed in this study that temperature is a growing function of magnetic field, Reynolds number while decreasing function of Prandtl number. Velocity profile is a growing function of Reynolds number while concentration is a decreasing function of it. Moreover, rate of entropy production grows with augmentation in Brinkman number and radiation parameter.