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ORIGINAL PAPER
Effects of viscous dissipation over an unsteady stretching surface embedded in a porous medium with heat generation and thermal radiation
1
Department of Mechatronics Engineering,, Federal University of Agriculture, Abeokuta, Nigeria., Nigeria
2
Department of Mechanical Engineering, University of Ibadan,, Nigeria
3
Department of Industrial and System Engineering, Lagos State University, Nigeria
4
Department of Electronics and Computer Engineering, Lagos State University,, Nigeria
Submission date: 2023-12-13
Final revision date: 2024-01-22
Acceptance date: 2024-06-24
Publication date: 2024-09-12
Corresponding author
Samuel Oluyemi Owoeye
Department of Mechatronics Engineering,, Federal University of Agriculture, Abeokuta, Nigeria., Nigeria
Department of Mechatronics Engineering,, Federal University of Agriculture, Abeokuta, Nigeria., Nigeria
International Journal of Applied Mechanics and Engineering 2024;29(3):17-31
KEYWORDS
TOPICS
ABSTRACT
This work analyzes the impact of viscous dissipation on an unstable stretching surface in a porous medium with heat generation and thermal radiation—an important factor for numerous engineering applications like cooling baths and plastic sheets. Using MATLAB's Runge-Kutta fourth-order approach, the controlling partial differential equations are converted into highly nonlinear ordinary differential equations that can be solved numerically. The findings show that a decrease in the skin friction coefficient, temperature profiles, velocity, and Nusselt number occurs when the unsteadiness parameter is increased. In contrast to the Prandtl number, which rises with temperature profile and reduced Nusselt number, the Eckert number rises with a dimensionless temperature profile and reduced Nusselt number. Reduced Nusselt number and temperature profile affect the heat generation parameter; a decrease in skin friction coefficient and velocity profile correlate with the porosity parameter. Furthermore, the radiation parameter rises as the temperature distribution and Nusselt number decrease.
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