Entropy Analysis of the Nonlinear Convective Flow of a Jeffrey Fluid over an Inclined Sheet with Variable Electrical Conductivity and Thermal Conductivity

Abstract:

A steady two-dimensional nonlinear convective flow of a viscous, incompressible, electrically conducting, and non-Newtonian Jeffrey fluid over an inclined stretching sheet with convective boundary conditions and entropy generation is studied under the influence of transverse magnetic field, electrical conductivity and thermal conductivity. The thermal conductivity and electrical conductivity are temperature dependent functions. The governing continuity, momentum and energy equations are transformed to ordinary differential equations (ODEs) using appropriate similarity variables. The resulting coupled ODEs and the corresponding boundary conditions, are solved numerically using Runge-Kutta fourth order method and shooting technique. The velocity, entropy generation rate, temperature and Bejan distributions are presented graphically and discussed. The numerical values of the skin-friction and Nusselt number are obtained and also discussed for various thermophysical parameters through a Table. Furthermore, a comparison with earlier work done with limiting case was carried out and found to be in excellent agreement.

• Periodical: International Journal of Engineering Research in Africa (Volume 52)
• Pages: 73-91
• DOI: https://doi.org/10.4028/www.scientific.net/JERA.52.73
• Online since: January 2021
• Authors: Jacob Abiodun Gbadeyan, Joseph O. Akinremi*
• Keywords: Entropy Generation, Non-Darcy Porous Medium, Nonlinear Convection, Variable Electrical Conductivity, Variable Thermal Conductivity

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