In this paper, we present a numerical study of the flow characteristics and heat transfer mechanism of a non-Newtonian fluid in an annular space between two coaxial rotating cylinders taking into account the effect of viscous dissipation. The Carreau stress-strain relation was adopted to model the rheological fluid behavior. The problem is studied when the heated inner cylinder rotates around the common axis with constant angular velocity and the cooled outer cylinder is at the rest. The horizontal endplates are assumed adiabatic. In-house code which is based on a Galerkin mixed finite element is developed to obtain numerical solutions of the complete governing equations and associated boundary conditions and is validated with the results reported in the literature. It is found that five parameters can describe the problem under consideration, the Reynolds number (Re), the Grashof number (Gr), the index of structure (n), Weissenberg number (We) and the Eckert number (Ec). The velocity, temperature and stream function distributions and the local Nusselt number variations are drawn for different dimensionless groups.
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ASME 2010 10th Biennial Conference on Engineering Systems Design and Analysis
July 12–14, 2010
Istanbul, Turkey
Conference Sponsors:
- International
ISBN:
978-0-7918-4916-3
PROCEEDINGS PAPER
Effect of Viscous Dissipation on Heat Transfer Between Two Concentric Cylinders for Carreau Fluids Available to Purchase
Meriem Amoura,
Meriem Amoura
Universite´ des Sciences et de la Technologie Houari Boumediene, Alger, Algeria
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Noureddine Zeraibi
Noureddine Zeraibi
Universite´ de Boumerdes, Boumerdes, Algeria
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Meriem Amoura
Universite´ des Sciences et de la Technologie Houari Boumediene, Alger, Algeria
Noureddine Zeraibi
Universite´ de Boumerdes, Boumerdes, Algeria
Paper No:
ESDA2010-24544, pp. 601-606; 6 pages
Published Online:
December 28, 2010
Citation
Amoura, M, & Zeraibi, N. "Effect of Viscous Dissipation on Heat Transfer Between Two Concentric Cylinders for Carreau Fluids." Proceedings of the ASME 2010 10th Biennial Conference on Engineering Systems Design and Analysis. ASME 2010 10th Biennial Conference on Engineering Systems Design and Analysis, Volume 2. Istanbul, Turkey. July 12–14, 2010. pp. 601-606. ASME. https://doi.org/10.1115/ESDA2010-24544
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