Shahid Rajaee Teacher Training University (SRTTU) Journal of Computational & Applied Research in Mechanical Engineering (JCARME) 2228-7922 7 1 2017 08 01 Unsteady MHD nonlinear radiative squeezing slip-flow of Casson fluid between parallel disks 35 45 644 10.22061/jcarme.2017.644 EN M. Sathish Kumar Department of Mathematics, Vellore Institute of Technology, Vellore-632014, Tamil Nadu, India N. Sandeep Department of Mathematics, Vellore Institute of Technology, Vellore-632014, Tamil Nadu, India B. Rushi Kumar Department of Mathematics, Vellore Institute of Technology, Vellore-632014, Tamil Nadu, India Journal Article 2016 05 20 Effect of nonlinear thermal radiation on theunsteady magnetohydrodynamic slip flow of Casson fluid between parallel disks in the presence of thermophoresis and Brownian motion effects are investigated numerically. A similarity transformation is employed to reduce the governing partial differential equations into ordinary differential equations. Further, Runge-Kutta and Newton’s methods are adopted to solve the reduced ordinary differential equations. The effect of non-dimensional governing parameters, namely magnetic field parameter, Casson parameter, thermophoresis parameter, Brownian motion parameter, thermal radiation parameter, unsteadiness parameter, velocity slip parameter and temperature slip parameteron velocity, temperature and concentration fields are discussed and presented through graphs. Reduced Nusselt and Sherwood numbers are computed and presented through a table. It is found that rising values of nonlinear thermal radiation parameter depreciate the reduced Nusselt and Sherwood numbers. Thermophoresis and Brownian motion parameters have tendency to regulate the thermal and concentration boundary layers. Rising values of Casson parameter enhances the heat and mass transfer rate. https://jcarme.sru.ac.ir/article_644_9230c569fe2ab25154b9770adfbd6241.pdf