Inherent irreversibility analysis in a buoyancy induced magnetohydrodynamic couple stress fluid
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Authors
Jacob A. Gbadeyan
- Department of Mathematics, University of Ilorin, Nigeria.
- Department of Mathematics, Covenant University, Nigeria.
Abiodun A. Opanuga
- Department of Mathematics, Covenant University, Nigeria.
Abstract
This paper investigates the inherent irreversibility in a buoyancy induced magnetohydrodynamic (MHD) couple stress fluid through non-Darcian porous medium. It is assumed that the fluid exchanges heat with the ambient following Newtonian law. The governing Navier-Stoke and energy equations are formulated and non-dimensionalied, the approximate solutions for the velocity and temperature profiles are obtained via Adomian decomposition method. The results are used to calculate the entropy generation rate, and Bejan number. The effects of Buoyancy force, suction/injection, Hartman number and other flow parameters on velocity, temperature, entropy generation rate, and Bejan number are analyzed and discussed graphically. The results show that increase in Buoyancy force and suction/injection increases fluid velocity and temperature.Entropy generation rate becomes higher as the values of Buoyancy force, suction/injection parameter, and Hartman number increases.
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ISRP Style
Jacob A. Gbadeyan, Abiodun A. Opanuga, Inherent irreversibility analysis in a buoyancy induced magnetohydrodynamic couple stress fluid, Journal of Mathematics and Computer Science, 18 (2018), no. 4, 411--422
AMA Style
Gbadeyan Jacob A., Opanuga Abiodun A., Inherent irreversibility analysis in a buoyancy induced magnetohydrodynamic couple stress fluid. J Math Comput SCI-JM. (2018); 18(4):411--422
Chicago/Turabian Style
Gbadeyan, Jacob A., Opanuga, Abiodun A.. "Inherent irreversibility analysis in a buoyancy induced magnetohydrodynamic couple stress fluid." Journal of Mathematics and Computer Science, 18, no. 4 (2018): 411--422
Keywords
- Buoyancy force
- MHD
- porous medium
- entropy generation
- Adomian decomposition method
MSC
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