Library Subscription: Guest
Begell Digital Portal Begell Digital Library eBooks Journals References & Proceedings Research Collections
Heat Transfer Research
IF: 0.404 5-Year IF: 0.8 SJR: 0.264 SNIP: 0.504 CiteScore™: 0.88

ISSN Print: 1064-2285
ISSN Online: 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.2015005019
pages 1019-1038

CONJUGATE HEAT TRANSFER WITH VARIABLE FLUID PROPERTIES IN A HEATED HORIZONTAL ANNULUS

Sofiane Touahri
Energetic Physic Laboratory, Department of Physic, Faculty of Sciences, Mentouri University of Constantine, Algeria
Toufik Boufendi
Energetic Physic Laboratory, Department of Physic, Faculty of Sciences, Mentouri University of Constantine, Algeria

ABSTRACT

In the present work, we numerically study the three-dimensional conjugate heat transfer in an annular space between two horizontal concentric cylinders; the outer cylinder is subjected to an internal energy generated by the Joule effect through its thickness while the inner is adiabatic. The thermal convection in the fluid domain is conjugated to the thermal conduction in the solid. The physical properties of the fluid are thermally dependent. The heat losses from the external outside pipe surface to the surrounding medium are considered. The model equations of continuity, momentum, and energy are solved numerically by a finite volume method with a second-order spatial-temporal discretization. The results obtained show the three-dimensional aspect of the thermal and dynamical fields with considerable variations of the viscosity and moderate variations of the fluid thermal conductivity. As expected, the mixed convection Nusselt number becomes more superior to that of forced convection when the Grashof number is increased. At the solid−fluid interface, the results clearly show the azimuthal and axial variations of the local heat flux and the local Nusselt numbers. Following these results, we have tried to model the average Nusselt number as a function of the Richardson number. With the parameters used, the heat transfer is quantified by the following correlation: NuA= 9.9130 Ri0.0816.


Articles with similar content:

MIXED CONVECTION AND ENTROPY GENERATION IN A LID-DRIVEN CAVITY FILLED WITH A HYBRID NANOFLUID AND HEATED BY A TRIANGULAR SOLID
Heat Transfer Research, Vol.49, 2018, issue 17
Muneer A. Ismael, T. Armaghani, Ali J. Chamkha
INVESTIGATING THE NATURAL CONVECTION HEAT TRANSFER FROM TWO ELLIPTIC CYLINDERS IN A CLOSED CAVITY AT DIFFERENT CYLINDER SPACINGS
Heat Transfer Research, Vol.43, 2012, issue 3
Arian Jafari, Seyyed Mohammad Ali Noori Rahim Abadi
EFFECT OF CONJUGATE NATURAL CONVECTION FLOW IN A SQUARE ENCLOSURE WITH ALL SIDE WALL
Proceedings of the 24th National and 2nd International ISHMT-ASTFE Heat and Mass Transfer Conference (IHMTC-2017), Vol.0, 2017, issue
Aswatha, Balesh Babali, K. N. Seetharamu
EFFECT OF NUMBER OF BLOCKS ON THE PERIODIC NATURAL CONVECTION INSIDE AN ENCLOSURE HEATED FROM THE SIDE
Second Thermal and Fluids Engineering Conference, Vol.30, 2017, issue
S. Moussa Mirehei, Jose' L. Lage
Effectiveness and Economic for Using Ag-Nanoparticles in Porous Media inside Enclosure with Present Heat Generation and Magnetic Field under Natural Convection Conditions
International Journal of Fluid Mechanics Research, Vol.42, 2015, issue 6
Ali Meerali Jasim Al-Zamily