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Entropy 2003, 5(5), 366-376; doi:10.3390/e5050366

Vibrational Effect on Entropy Generation in a Square Porous Cavity

Department of Mechanical Engineering, University of Waterloo, Waterloo, Ontario, Canada
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Received: 7 December 2002 / Accepted: 10 June 2003 / Published: 31 December 2003
(This article belongs to the Special Issue Entropy Generation in Thermal Systems and Processes)
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Abstract

We investigate the nature of entropy generation for natural convection in a two-dimensional square section enclosure vibrating sinusoidally perpendicular to the applied temperature gradient in a zero-gravity field. The enclosure is assumed to fill with porous media. The Darcy momentum equation is used to model the porous media. The full governing differential equations are simplified with the Boussinesq approximation and solved by a finite volume method. Whereas the Prandtl number Pr is fixed to 1.0. Results are presented in terms of average Nusselt number (Nuav), entropy generation number (Nsav), Bejan number (Beav), and kinetic energy (KEav).
Keywords: vibrational convection; entropy generation; porous media; Bejan number; square cavity vibrational convection; entropy generation; porous media; Bejan number; square cavity
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Mahmud, S.; Fraser, R.A. Vibrational Effect on Entropy Generation in a Square Porous Cavity. Entropy 2003, 5, 366-376.

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