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Journal of Porous Media
Fator do impacto: 1.752 FI de cinco anos: 1.487 SJR: 0.43 SNIP: 0.762 CiteScore™: 2.3

ISSN Imprimir: 1091-028X
ISSN On-line: 1934-0508

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Journal of Porous Media

DOI: 10.1615/JPorMedia.v16.i1.70
pages 69-87

ENTROPY GENERATION FOR PULSATING FLOW IN A CYLINDER FILLED WITH POROUS MEDIA INCLUDING VISCOUS DISSIPATION EFFECTS

Hacen Dhahri
Laboratory of Thermal and Energy Systems Studies, National School of Engineers, Monastir University, Monastir, Tunisia
A. Boughamoura
Laboratoire d'Etudes des Systèmes Thermiques et Energétiques, Ecole Nationale d'Ingénieurs de Monastir, Rue Ibn Eljazzar, 5019 Monastir, Tunisie
Sassi Ben Nasrallah
Laboratoire d'Études des Systèmes Thermiques et Énergétiques, Ecole Nationale d'Ingénieurs de Monastir, Monastir 5019 Tunisie

RESUMO

The present paper deals with numerical investigation of heat transfer and entropy generation for pulsating flow within a cylinder filled with a fluid-saturated porous medium with a wall maintained at constant heat flux. In modeling the flow, the Brinkman−Lapwood−Forchheimer-extended Darcy model is incorporated in momentum equations. Furthermore, the local thermal equilibrium condition is assumed to be applicable for the current investigation. In the energy equation the viscous dissipation effects are included. The control volume-based finite element method is used to solve the governing equations with an unequal order velocity−pressure interpolation. A comprehensive analysis of the influence of the amplitude pulsation, the thermal conductivity ratio, the heat capacity ratio, the Darcy number, the Eckert number, the Brinkman number, and the dimensionless temperature difference on the heat transfer and entropy generation is investigated throughout this paper.


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