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.2013006271
pages 645-663

STUDY OF CONVECTIVE HEAT TRANSFER IN A SQUARE CAVITY FILLED WITH A VISCOPLASTIC FLUID BY TAKING INTO ACCOUNT VISCOUS DISSIPATION

Nabila Labsi
Laboratoire des Phenomenes de Transfert, Faculte de Genie Mecanique et de Genie des Procedes, Universite des Sciences et de la Technologie Houari Boumediene BP, 32 El Alia, 16111 Bab Ezzouar, Algiers, Algeria
Youb Khaled Benkahla
Faculté de Génie Mécanique et de Génie des Procédés, Université des Sciences et de la Technologie Houari Boumediene USTHB, B.P. 32, El-Alia Bab-Ezzouar, 16111 Algiers, Algeria
Abdelkader Boutra
Laboratoire des Phenomenes de Transfert, Faculte de Genie Mecanique et de Genie des Procedes, Universite des Sciences et de la Technologie Houari Boumediene BP, 32 El Alia, 16111 Bab Ezzouar, Algiers, Algeria

RESUMO

The present work is devoted to the numerical study of forced, natural and mixed convective heat transfer inside a square cavity filled with a non-Newtonian viscoplastic fluid described by the Bingham rheological model. The upper and bottom walls of the enclosure are thermally insulated, while the remaining walls are mobile and differentially heated. In order to solve the general coupled equations, a code based on the finite volume method is used and has been validated after comparison of the present results with those from the literature.
Viscous dissipation effects on hydrodynamic and thermal properties are analyzed for various values of the Richardson number. The results show that the Richardson number affects the hydrodynamic characteristics as well as heat transfer in a cavity filled with a viscoplastic fluid and leads to a flow structure modification different from that obtained for a Newtonian fluid. The same observation is done concerning the effect of the Brinkman number. Indeed, it has been noted that neglecting the viscous dissipation results in a significant underestimation of heat transfer in an enclosure, especially in the case of natural heat transfer convection.


Articles with similar content:

NUMERICAL SIMULATION OF MIXED CONVECTION IN A SiO2/WATER NANOFLUID IN A TWO−SIDED LID-DRIVEN SQUARE ENCLOSURE WITH SINUSOIDAL BOUNDARY CONDITIONS ON THE WALL
Heat Transfer Research, Vol.45, 2014, issue 7
Seyed Sadegh Mirtalebi Esforjani, Mohammad Hadi Hajmohammad, Mohammad Akbari, Mohammad Hemmat Esfe
INFLUENCE OF THE SLIP VELOCITY ON THE CONJUGATE HEAT TRANSFER FROM AN IMPERVIOUS SPHERE EMBEDDED IN A POROUS MEDIUM
Heat Transfer Research, Vol.50, 2019, issue 17
Gheorghe Juncu
NATURAL CONVECTION HEAT TRANSFER IN A DIFFERENTIALLY HEATED ENCLOSURE WITH ADIABATIC PARTITIONS AND FILLED WITH A BINGHAM FLUID
Heat Transfer Research, Vol.46, 2015, issue 8
Karim Ragui, Youb Khaled Benkahla, Nabila Labsi, Abdelkader Boutra
DETERMINATION OF INTERFACIAL HEAT TRANSFER COEFFICIENT FOR A MIXED CONVECTION HEAT TRANSFER IN A VERTICAL CHANNEL FILLED WITH UNIFORMLY HEATED BLOCKS
ICHMT DIGITAL LIBRARY ONLINE, Vol.0, 2015, issue
Hasan Celik, Bernardo Buonomo, Moghtada Mobedi, Oronzio Manca
SIMULATION STUDIES OF MULTIMODE HEAT TRANSFER FROM A DISCRETELY HEATED VERTICAL CHANNEL
Heat Transfer Research, Vol.46, 2015, issue 11
C. Gururaja Rao, Shrikant Londhe