COMBINED EFFECT OF THERMAL RADIATION AND VISCOUS DISSIPATION ON UNSTEADY FREE CONVECTIVE MAGNETOHYDRODYNAMIC FLOW THROUGH AN IRREGULAR CHANNEL

COMBINED EFFECT OF THERMAL RADIATION AND VISCOUS DISSIPATION ON UNSTEADY FREE CONVECTIVE MAGNETOHYDRODYNAMIC FLOW THROUGH AN IRREGULAR CHANNEL

Author by Dr. A. Samson Agunbiade

Journal/Publisher: Journal Of The Serbian Society For Computational Mechanics

Volume/Edition: 14

Language: English

Pages: 37 - 51

Abstract

This study is focused on the joint effects of thermal radiation and magnetic field on an unsteady flow of natural convective, electrically conducting fluid past an irregular vertical channel in the presence of viscous dissipation. The magnetic field is applied normal to the channel. The coupled ordinary  differential  equations  (ODE)  are  obtained  using  perturbation  technique  on  the dimensionless governing equations involving energy and momentum equation. Semi-analytical solutions  are  obtained  for  the  resultant  coupled  ODE  with  the  application  of  Adomian Decomposition Method (ADM) with the aid of Mathematica 11.0 software. The pertinent flow parameters  in  velocity,  temperature,  Skin-friction  and  Nusselt  number  are  discussed  and exhibited using tables and graphs. It is revealed that at all regions, thermal radiation a nd viscous dissipation have a tendency to accelerate the Skin-friction and heat transfer coefficient of the fluid.


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