Heat Irreversibility Analysis for a Couple Stress Fluid Flow in an Inclined Channel with Isothermal Boundaries
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Date
2019
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Elsevier Journal of the Taiwan Institute of Chemical Engineer
Abstract
: Entropy generation in a fully developed couple stress fluid flow through an inclined channel is
the focus of the present article. The steady flow of the non-Newtonian fluid via the inclined channel is
assumed to be heated isothermally at the boundaries. The formulation of both the fluid flow and heat
are based on hydrodynamics and thermodynamics laws. Exact solutions are constructed the
dimensionless governing equations. The accuracy of the two solutions are established by direct
comparison with the limiting case previously obtained in the current literature. Solution profiles are also
presented to demonstrate the effect of variations in the parameter values followed closely by extensive
discussions.
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Keywords
Isothermal heating, Couple stresses, Second law, Inclined channel