Inscrição na biblioteca: Guest
Portal Digital Begell Biblioteca digital da Begell eBooks Diários Referências e Anais Coleções de pesquisa
Heat Transfer Research
Fator do impacto: 0.404 FI de cinco anos: 0.8 SJR: 0.264 SNIP: 0.504 CiteScore™: 0.88

ISSN Imprimir: 1064-2285
ISSN On-line: 2162-6561

Volumes:
Volume 50, 2019 Volume 49, 2018 Volume 48, 2017 Volume 47, 2016 Volume 46, 2015 Volume 45, 2014 Volume 44, 2013 Volume 43, 2012 Volume 42, 2011 Volume 41, 2010 Volume 40, 2009 Volume 39, 2008 Volume 38, 2007 Volume 37, 2006 Volume 36, 2005 Volume 35, 2004 Volume 34, 2003 Volume 33, 2002 Volume 32, 2001 Volume 31, 2000 Volume 30, 1999 Volume 29, 1998 Volume 28, 1997

Heat Transfer Research

DOI: 10.1615/HeatTransRes.2018019392
pages 125-157

HEAT AND MASS TRANSFER BY NATURAL CONVECTION DURING WATER EVAPORATION IN A CORRUGATED VERTICAL CHANNEL

Olfa Mechergui
LAMPS, Université de Perpignan Via Domitia, 52 Avenue Paul Alduy, 66860 Perpignan, France; LETTM, Département de Physique, Faculté des Sciences de Tunis, Université de Tunis El Manar, 1060 Tunis, Tunisie; Département de Physique, Faculté des Sciences de Bizerte, Université du 7 Novembre Carthage, 7021 Jarzouna, Tunisie
Xavier Chesneau
Laboratoire de Mathématiques et Physique LAMPS, Université de Perpignan via Domitia, 52 Avenue Paul Alduy, 66860 Perpignan Cedex 9, France
Ali Hatem Laatar
LETTM, Department of Physics, Faculty of Sciences of Tunis, Tunis El Manar University, 1060 Tunis, Tunisia; Department of Physics, Faculty of Sciences of Bizerte, University of the 7th November at Carthage, 7021 Jarzouna-Bizerte, Tunisia; Department of Physics, Faculty of Sciences of Tabuk, Tabuk University 71491, Saudi Arabia

RESUMO

This paper deals with a numerical study of coupled heat and mass transfers by natural convection during water evaporation in a corrugated vertical channel. This channel is heated asymmetrically with a uniform heat flux. The unsteady two-dimensional Navier–Stokes, energy, and species equations are integrated by a finite volume approach and then solved using the projections method. The aim of this work is to conduct a detailed numerical study to analyze the effects of physical parameters such as flux density imposed on the wall, the relative humidity, and the effects of geometrical parameters such as the shape, the size, and the number of protuberances. More than four hundred numerical simulations have been carried in order to analyze the effect of added obstructions to a vertical open channel. The numerical results are the distributions of dimensionless axial velocity, temperature, and concentration; the Nusselt number as well as the Sherwood number are also presented. For some particular cases, results are in agreement with previous works reported in the literature. Moreover, the agreement between numerical results and experimental data is satisfactory.


Articles with similar content:

HEAT AND MASS TRANSFERS BY NATURAL CONVECTION DURING WATER EVAPORATION IN A VERTICAL CHANNEL
Computational Thermal Sciences: An International Journal, Vol.9, 2017, issue 5
Olfa Mechergui, Ali Hatem Laatar, Xavier Chesneau
Natural Convection Inside Square Cavities Partially Heated From Below
ICHMT DIGITAL LIBRARY ONLINE, Vol.2, 2004, issue
Pier Paolo Dell'Omo, Claudio Cianfrini, Massimo Corcione
A PENALIZATION METHOD TO TREAT THE INTERFACE BETWEEN A FREE-FLUID REGION AND A FIBROUS POROUS MEDIUM
Journal of Porous Media, Vol.22, 2019, issue 9
Christophe Airiau, Alessandro Bottaro, Nicola Luminari, Giuseppe A. Zampogna
NUMERICAL INVESTIGATION OF DOUBLE-DIFFUSIVE NATURAL CONVECTION IN A RECTANGULAR POROUS ENCLOSURE WITH PARTIALLY ACTIVE THERMAL WALLS
Journal of Porous Media, Vol.19, 2016, issue 3
Rasoul Nikbakhti, Ahmad Saberi
DENSITY MAXIMUM EFFECT OF DOUBLE-DIFFUSIVE MIXED CONVECTION HEAT TRANSFER IN A TWO-SIDED LID-DRIVEN POROUS CAVITY
Special Topics & Reviews in Porous Media: An International Journal, Vol.8, 2017, issue 3
N. Suresh, N. Nithyadevi, Muthu Rajarathinam