Suscripción a Biblioteca: Guest
Portal Digitalde Biblioteca Digital eLibros Revistas Referencias y Libros de Ponencias Colecciones
Journal of Porous Media
Factor de Impacto: 1.49 Factor de Impacto de 5 años: 1.159 SJR: 0.43 SNIP: 0.671 CiteScore™: 1.58

ISSN Imprimir: 1091-028X
ISSN En Línea: 1934-0508

Volumes:
Volumen 22, 2019 Volumen 21, 2018 Volumen 20, 2017 Volumen 19, 2016 Volumen 18, 2015 Volumen 17, 2014 Volumen 16, 2013 Volumen 15, 2012 Volumen 14, 2011 Volumen 13, 2010 Volumen 12, 2009 Volumen 11, 2008 Volumen 10, 2007 Volumen 9, 2006 Volumen 8, 2005 Volumen 7, 2004 Volumen 6, 2003 Volumen 5, 2002 Volumen 4, 2001 Volumen 3, 2000 Volumen 2, 1999 Volumen 1, 1998

Journal of Porous Media

DOI: 10.1615/JPorMedia.v19.i10.20
pages 853-870

IRREVERSIBILITY ANALYSIS IN MIXED CONVECTION FLOW IN A POROUS CHANNEL WITH VISCOUS DISSIPATION

Amel Tayari
Chemical and Process Engineering Department, Engineers National School of Gabes, Gabes University, Applied Thermodynamics Unit, Omar Ibn El Khattab St., 6029 Gabes, Tunisia
Rahma Bouabda
Chemical and Process Engineering Department, Engineers National School of Gabes, Gabes University, Applied Thermodynamics Unit, Omar Ibn El Khattab St., 6029 Gabes, Tunisia
Mourad Magherbi
Chemical and Process Engineering Department, Engineers National School of Gabes, Gabes University, Applied Thermodynamics Unit, Omar Ibn El Khattab St., 6029 Gabes, Tunisia

SINOPSIS

Various constraints acting on a flow, such as heat transfer, viscous fluid friction, and chemical reaction, are sources of irreversibility and therefore responsible for entropy generation. In this paper, the mixed convection with viscous dissipation effect in an inclined channel filled with a saturated porous medium is investigated numerically, by using the Darcy-Brinkman model. The Navier-Stokes and energy equations are solved by classic Boussinesq approximation. First, the effect of the Darcy number on the total entropy generation in the horizontal porous channel is investigated in the absence and in the presence of viscous the dissipation term. In this case, the Prandtl number and the Brinkman number are considered as parameters. The contribution of the different irreversibility causes on the total entropy generation is analyzed by the investigation of the Bejan number versus Darcy number, with the Prandtl number as parameter. Next, the fluctuations of the transient total entropy generation were investigated when the inclination angle varies from 0 deg to 180 deg. Moreover, the effect of the channel inclination angle on both the entropy generation and the Bejan number was investigated. It was found that the total entropy generation is maximum at inclination angle close to 70 deg and minimum at 0 deg and 180 deg.


Articles with similar content:

HEAT TRANSFER IN NANOFLUID MHD FLOW IN A CHANNEL WITH PERMEABLE WALLS
Heat Transfer Research, Vol.48, 2017, issue 3
D.D. Ganji, Mehdi Fakour, A. Bakhshi, A. Khalili
IMPLICATIONS OF PLACING A POROUS BLOCK IN A MIXED-CONVECTION HEAT-TRANSFER, LID-DRIVEN CAVITY HEATED FROM BELOW
Journal of Porous Media, Vol.16, 2013, issue 4
Abdalla M. AlAmiri
NUMERICAL ANALYSIS OF EFFECT OF PRANDTL NUMBER ON NATURAL CONVECTION USING LATTICE BOLTZMANN METHOD
Proceedings of the 24th National and 2nd International ISHMT-ASTFE Heat and Mass Transfer Conference (IHMTC-2017), Vol.0, 2017, issue
Dipankar Narayan Basu, Shikha Bhuyan
HALL CURRENT EFFECTS ON HYDROMAGNETIC FLOW THROUGH UNIFORM CHANNEL BOUNDED BY POROUS MEDIA
International Journal of Fluid Mechanics Research, Vol.45, 2018, issue 5
K. Ramakrishnan
ENTROPY GENERATION DUE TO NATURAL CONVECTION COOLING OF A HORIZONTAL HEAT SOURCE MOUNTED INSIDE A SQUARE CAVITY FILLED WITH NANOFLUID
Heat Transfer Research, Vol.43, 2012, issue 1
Farhad Talebi, Mina Shahi, Amir Houshang Mahmoudi