Thermodynamics analysis of an MHD casson fluid flow through a rotating permeable channel with slip and hall effects

• Autorzy: Eegunjobi Adetayo Samuel , Makinde Oluwole Daniel

Identyfikatory

DOI

10.24423/EngTrans.960.20200720

• Języki publikacji: EN

Abstrakty

EN

In this paper, the inherent irreversibility in a Casson fluid flow through a rotating permeable microchannel with wall slip and Hall current is investigated. It is assumed that the lower wall is subjected to the velocity slip and fluid injection while the fluid suction occurs at the upper wall. The nonlinear governing equations of momentum and energy balance are obtained, analyzed and solved numerically using the shooting technique together with the Runge-Kutta-Fehlberg integration method. Pertinent results depicting the effects of various embedded thermophysical parameters on the fluid velocity, temperature, skin friction, the Nusselt number, entropy generation rate and the Bejan number are presented graphically and discussed. It is found that the entropy generation rate is enhanced by fluid rotation and velocity slip but lessened with a rise magnetic field intensity. Our results will undoubtedly augment the design and efficient operation of micro-cooling devices, micro-heat exchangers, micropumps and micro-mixing technologies.

Słowa kluczowe

EN

MHD; Casson fluid; rotating flow; permeable channel; Hall effects; entropy analysis

• Wydawca: Instytut Podstawowych Problemów Techniki PAN
• Czasopismo: Engineering Transactions
• Rocznik: 2020
• Tom: Vol. 68, iss. 3
• Strony: 239--252
• Opis fizyczny: Bibliogr. 13 poz., rys., wykr.

Twórcy

autor

Eegunjobi Adetayo Samuel

• Department of Mathematics and Statistics Namibia University of Science and Technology Private Bag 13388, 13 Storch Street, Windhoek, Namibia

autor

Makinde Oluwole Daniel

• Faculty of Military Science Stellenbosch University Private Bag X2, Saldanha 7395, South Africa

Bibliografia

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• 12. Papa F., Vaidyanathan K., Keith T.G., DeWitt.J., Numerical computations of flow in rotating ducts with strong curvature, International Journal of Numerical Methods for Heat & Fluid Flow, 10(5): 541–557, 2000, doi: 10.1108/09615530010338213.
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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2021).