Final published version
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Second-law analysis for buoyancy-driven hydromagnetic couple stress fluid flow through a porous channel
AU - Kareem, Semiu O.
AU - Adesanya, Samuel O.
AU - Vincent, Uchechukwu Enyim
PY - 2016/8
Y1 - 2016/8
N2 - This paper examines the combined effects of the buoyancy force and of the magnetic field on the entropy generation rate in the flow of a couple stress fluid through a porous vertical channel. The flow's dynamical equations were non-dimensionalised and solved via the application of the Adomian decomposition method (ADM). Variations of some thermo-physical parameters were conducted and discussed, with regard to the physics of the fluid. Our result shows that the entropy generation rate increases as the buoyancy increases in the fluid. In addition, the irreversibility in the flow system results mainly from the fluid's viscosity, ohmic heating, and the buoyancy.
AB - This paper examines the combined effects of the buoyancy force and of the magnetic field on the entropy generation rate in the flow of a couple stress fluid through a porous vertical channel. The flow's dynamical equations were non-dimensionalised and solved via the application of the Adomian decomposition method (ADM). Variations of some thermo-physical parameters were conducted and discussed, with regard to the physics of the fluid. Our result shows that the entropy generation rate increases as the buoyancy increases in the fluid. In addition, the irreversibility in the flow system results mainly from the fluid's viscosity, ohmic heating, and the buoyancy.
KW - Magnetic field
KW - Buoyancy force
KW - Entropy generation
KW - Slip flow
KW - Irreversibility ratio
KW - ADM
U2 - 10.1016/j.crme.2016.03.003
DO - 10.1016/j.crme.2016.03.003
M3 - Journal article
VL - 344
SP - 547
EP - 555
JO - Comptes Rendus Mécanique
JF - Comptes Rendus Mécanique
IS - 8
ER -