Доступ предоставлен для: Guest
Портал Begell Электронная Бибилиотека e-Книги Журналы Справочники и Сборники статей Коллекции
Heat Transfer Research
Импакт фактор: 0.404 5-летний Импакт фактор: 0.8 SJR: 0.264 SNIP: 0.504 CiteScore™: 0.88

ISSN Печать: 1064-2285
ISSN Онлайн: 2162-6561

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

Краткое описание

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:

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
A NUMERICAL STUDY ON MIXED CONVECTION OF NON-NEWTONIAN FLUID FLOW IN POROUS CHANNEL WITH AIDING AND OPPOSING NATURAL CONVECTION EFFECTS
Journal of Porous Media, Vol.20, 2017, issue 1
Mir Aydin Khoddam Tabrizi, Reza Gharraei, Sima Baheri Islami
LBM SIMULATION OF FRICTION FACTOR AND HEAT TRANSFER ON THE MOVING LID OF A TRIANGULAR ENCLOSURE
Heat Transfer Research, Vol.48, 2017, issue 11
Y. W. Lee, M.A. Taher, Heuy Dong Kim
NUMERICAL INVESTIGATION OF NATURAL-CONVECTION HEAT TRANSFER CHARACTERISTICS OF Al2O3-WATER NANOFLUID FLOW THROUGH POROUS MEDIA EMBEDDED IN A SQUARE CAVITY
Heat Transfer Research, Vol.49, 2018, issue 8
Siva Sai Vadri, K. Arul Prakash, Arvind Pattamatta
NATURAL CONVECTION IN A SQUARE CAVITY FILLED WITH A NON-DARCY POROUS MEDIUM SATURATED WITH NANOFLUID BY THE BOUNDARY ELEMENT METHOD
Journal of Porous Media, Vol.20, 2017, issue 10
Renata Jecl, Janja Kramer Stajnko, Jure Ravnik