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Entropy 2007, 9(1), 30-41; doi:10.3390/e9010030
Article

Second Law Analysis of a non-Newtonian Laminar Falling Liquid Film Along an Inclined Heated Plate

1,*  and 2
Received: 11 January 2007; Accepted: 20 February 2007 / Published: 30 March 2007
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Abstract: The second law analysis of heat transfer of a non-Newtonian, laminar fallingliquid film along an inclined heated plate is investigated. The upper surface of the liquidfilm is considered free and adiabatic. Velocity and temperature profiles are obtainedanalytically and used to compute the entropy generation number (Ns), irreversibility ratio (Φ) and the Bejan number (Be) for several values of the viscous dissipation parameter(Br -1), viscosity index (n) and the dimensionless axial distance (X). The Bejan numberincreases in the transverse direction and decreases as the viscous dissipation parameter(BrΩ -1) increases. The numerical results show that the Bejan number decreases as theviscous dissipation parameter (BrΩ -1), Peclet number (Pe) and the viscosity index (n)increase.
Keywords: Second law; Falling liquid film; heat transfer; Non-Newtonian fluids; Bejan number. Second law; Falling liquid film; heat transfer; Non-Newtonian fluids; Bejan number.
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Gorla, R.S.R.; Pratt, D.M. Second Law Analysis of a non-Newtonian Laminar Falling Liquid Film Along an Inclined Heated Plate. Entropy 2007, 9, 30-41.

AMA Style

Gorla RSR, Pratt DM. Second Law Analysis of a non-Newtonian Laminar Falling Liquid Film Along an Inclined Heated Plate. Entropy. 2007; 9(1):30-41.

Chicago/Turabian Style

Gorla, Rama S.R.; Pratt, David M. 2007. "Second Law Analysis of a non-Newtonian Laminar Falling Liquid Film Along an Inclined Heated Plate." Entropy 9, no. 1: 30-41.


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