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Entropy generation in a micropolar fluid flow through an inclined channel with slip and convective boundary conditions

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  • Srinivasacharya, D.
  • Hima Bindu, K.

Abstract

The present paper studies the entropy generation in a micropolar fluid flow through an inclined channel with slip and convective boundary conditions. The governing equations are linearized using quasi-linearization and then solved using Chebyshev spectral collocation method. The velocity, microrotation and temperature profiles are obtained and utilized to compute entropy generation and Bejan number. The effects of the angle of inclination, coupling number, slip parameter, Biot number and Brinkman number on the velocity, microrotation, temperature, entropy generation and Bejan number are studied and presented graphically. The results reveal that the entropy generation number increases with the increase of angle of inclination and Brinkman number while the increase of coupling number and Reynolds number causes the entropy generation to reduce. It is observed that the heat transfer irreversibility dominates at the centre of the channel.

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  • Srinivasacharya, D. & Hima Bindu, K., 2015. "Entropy generation in a micropolar fluid flow through an inclined channel with slip and convective boundary conditions," Energy, Elsevier, vol. 91(C), pages 72-83.
    • Handle: RePEc:eee:energy:v:91:y:2015:i:c:p:72-83
    DOI: 10.1016/j.energy.2015.08.014
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    References listed on IDEAS

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    1. Makinde, O.D., 2008. "Entropy-generation analysis for variable-viscosity channel flow with non-uniform wall temperature," Applied Energy, Elsevier, vol. 85(5), pages 384-393, May.
    2. Torabi, Mohsen & Zhang, Kaili & Yang, Guangcheng & Wang, Jun & Wu, Peng, 2015. "Heat transfer and entropy generation analyses in a channel partially filled with porous media using local thermal non-equilibrium model," Energy, Elsevier, vol. 82(C), pages 922-938.
    3. Torabi, Mohsen & Zhang, Kaili, 2015. "Temperature distribution, local and total entropy generation analyses in MHD porous channels with thick walls," Energy, Elsevier, vol. 87(C), pages 540-554.
    4. López de Haro, M. & Cuevas, S. & Beltrán, A., 2014. "Heat transfer and entropy generation in the parallel plate flow of a power-law fluid with asymmetric convective cooling," Energy, Elsevier, vol. 66(C), pages 750-756.
    5. Anand, Vishal, 2014. "Slip law effects on heat transfer and entropy generation of pressure driven flow of a power law fluid in a microchannel under uniform heat flux boundary condition," Energy, Elsevier, vol. 76(C), pages 716-732.
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    Cited by:

    1. Srinivasacharya, D. & Bindu, K. Hima, 2016. "Entropy generation in a porous annulus due to micropolar fluid flow with slip and convective boundary conditions," Energy, Elsevier, vol. 111(C), pages 165-177.

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