Hydromagnetic °ow of magnetite–water nano°uid utilizing adapted Buongiorno model

Abstract

The hydromagnetic °ow of magnetite–water nano°uid due to a rotating stretchable disk has been numerically assessed. The nano°uid °ow has been modeled utilizing the adapted Buongiorno model that considers the volume fraction-dependent e®ective nano°uid properties and the major slip mechanisms. In addition, experimentally gleaned functions of e®ective dynamic viscosity and e®ective thermal conductivity are deployed. The modeled equations are transformed into a ¯rst-order ODEs scheme employing Von K arm an's similarity conversions and then resolved via the Runge–Kutta algorithm through the shooting technique. The impact of pertinent terms over the physical quantities, nanoliquid temperature and nanoliquid concentration is explained with the support of graphs. Results show that rising volume fraction of magnetite nanoparticles (NPs) and magnetic ¯eld term enhance the drag force. Mass transport rate is demoted with augmenting values of magnetic ¯eld parameter whereas is promoted with increase in Schmidt number. Further, it is detected that the changes in stretching strength parameter are directly proportional to Nusselt number and inversely proportional to the thermal ¯eld. The ¯ndings of this numerical analysis have applications in spin coating,rotating disk reactors, storage devices for computers, food processing, and rotating heat exchangers.