Combined Effects of Thermal Radiation and Magnetic Field on Heat and Mass Transfer in a Thin Liquid Film of a Nanofluid Over an Unsteady Stretching Sheet

摘要

The present work deals with the study of combined effects of thermal radiation and magnetic field on heat and mass transfer in a thin liquid film of a nanofluid over a heated unsteady stretched sheet. Numerical results are obtained using a shooting technique together with Runge-Kutta-Fehlberg schemes. The results are discussed for several important physical parameters governing the problem. It is found that the effects of nanoparticle concentration gradient and temperature gradient of the nanofluid decrease with an increase in the value of the magnetic field whereas the trends get reversed by increasing the value of the thermal radiation parameter, Lewis number and thermophoresis number. Also, there is a tendency to decrease the velocity profiles of the nanofluid with increase in the unsteadiness parameter.