Influence of nonlinear thermal radiation on the viscous flow through a deformable asymmetric porous channel: A numerical study

A numerical investigation has been made to study the influence of nonlinear thermal radiation on the flow of a viscous fluid. The flow is confined in a channel with deformable porous walls. Two numerical schemes, namely, Galerkin's method [GM] and Runge-Kutta-Fehlberg [RKF] method have been employed to obtain the solutions after reducing the governing equations to a system of nonlinear ordinary differential equations. A good agreement has been found in both the solutions. Flow behavior under the influence of arising parameters has been discussed in details with the help of suitable graphs. It is seen that the thermal radiation increases not only the rate of heat transfer at the wall but it also affects the temperature profile quite significantly. The last section summarizes the observations and conclusions made after the study.