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Entropy-generation analysis for variable-viscosity channel flow with non-uniform wall temperature

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  • Makinde, O.D.

Abstract

This paper is an analytical study of inherent irreversibility in the flow of a variable-viscosity fluid through a channel with a non-uniform wall temperature. It is assumed that the channel is narrow and the fluid viscosity varies linearly with temperature. Analytical expressions for fluid velocity and temperature are derived and employed to obtain expressions for volumetric entropy-generation numbers, irreversibility distribution ratio and the Bejan number in the flow field.

Suggested Citation

  • 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.
    • Handle: RePEc:eee:appene:v:85:y:2008:i:5:p:384-393
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    Cited by:

    1. Ibáñez, Guillermo & López, Aracely & Pantoja, Joel & Moreira, Joel & Reyes, Juan A., 2013. "Optimum slip flow based on the minimization of entropy generation in parallel plate microchannels," Energy, Elsevier, vol. 50(C), pages 143-149.
    2. 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.
    3. Geetika Saini & B. N. Hanumagowda & Hasan Mulki & S. Suresh Kumar Raju & S. V. K. Varma & Kamal Barghout & Nimer Murshid & Wael Al-Kouz, 2023. "Entropy Generation Optimization in Couple Stress Fluid Flow with Variable Viscosity and Aligned Magnetic Field," Sustainability, MDPI, vol. 15(3), pages 1-25, January.
    4. Ranjit, N.K. & Shit, G.C., 2017. "Entropy generation on electro-osmotic flow pumping by a uniform peristaltic wave under magnetic environment," Energy, Elsevier, vol. 128(C), pages 649-660.
    5. Gaikwad, Harshad Sanjay & Basu, Dipankar Narayan & Mondal, Pranab Kumar, 2017. "Non-linear drag induced irreversibility minimization in a viscous dissipative flow through a micro-porous channel," Energy, Elsevier, vol. 119(C), pages 588-600.

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