Suscripción a Biblioteca: Guest
Portal Digitalde Biblioteca Digital eLibros Revistas Referencias y Libros de Ponencias Colecciones
International Journal of Fluid Mechanics Research
ESCI SJR: 0.206 SNIP: 0.446 CiteScore™: 0.5

ISSN Imprimir: 2152-5102
ISSN En Línea: 2152-5110

Volumes:
Volumen 46, 2019 Volumen 45, 2018 Volumen 44, 2017 Volumen 43, 2016 Volumen 42, 2015 Volumen 41, 2014 Volumen 40, 2013 Volumen 39, 2012 Volumen 38, 2011 Volumen 37, 2010 Volumen 36, 2009 Volumen 35, 2008 Volumen 34, 2007 Volumen 33, 2006 Volumen 32, 2005 Volumen 31, 2004 Volumen 30, 2003 Volumen 29, 2002 Volumen 28, 2001 Volumen 27, 2000 Volumen 26, 1999 Volumen 25, 1998 Volumen 24, 1997 Volumen 23, 1996 Volumen 22, 1995

International Journal of Fluid Mechanics Research

DOI: 10.1615/InterJFluidMechRes.v25.i1-3.300
pages 339-350

The Mixed Convection Flow of a Bingham Plastic in an Eccentric Annulus

N. Patel
Department of Applied Mathematical Studies, University of Leeds, Leeds, UK
Derek B. Ingham
Centre for CFD, Department of Applied Mathematical Studies, The University of Leeds, Leeds, LS2 9JT, UK; Energy-2050, Faculty of Engineering, University of Sheffield, Sheffield, S10 2TN, UK

SINOPSIS

The modeling of laminar, fully-developed combined convection flow of a Bingham plastic in a vertical eccentric annulus, in which the walls are held at asymmetric constant temperatures is investigated. The momentum, continuity and energy equations are solved numerically using the Finite Element Method (F.E.M.). The results obtained are found to be in good agreement with the analytical solutions found by using a narrow gap approximation, that is the gap between the walls of the annulus is small compared with the inner radius. It is shown that different flow configurations exist depending on the buoyancy parameter, Grashof/Reynolds, including flow reversal and unsheared plug flow adjacent to the wall. If flow reversal occurs it is shown by the numerical solution that a pair of 'true plugs' in which the velocity is independent of both the radial and azimuthal variables can exist at each of the widest and narrowest regions of the annulus. Further, it is found that the leading order narrow-gap approximation is inadequate to predict these true plugs.


Articles with similar content:

Natural Convection from a Horizontal Annulus Filled with Porous Medium of Variable Permeability
Journal of Porous Media, Vol.12, 2009, issue 7
Taha K. Aldoss
Friction factors and Nusselt numbers for fully developed laminar flow in annuli
International Heat Transfer Conference 12, Vol.10, 2002, issue
Charl G. Jat Du Toit
Multiplicity and Stability of Forced Convection in Curved Ducts of Square Cross Section
International Heat Transfer Conference 12, Vol.16, 2002, issue
Tianliang Yang, Liqiu Wang
EFFECTS OF BUOYANCY ON THE PERFORMANCE OF A VERTICAL DOUBLE-PIPE HEAT EXCHANGER
Computational Thermal Sciences: An International Journal, Vol.3, 2011, issue 5
Ionut Voicu, Thierry Mare, Nicolas Galanis
Heat and Fluid Flow within a Heterogeneous Porous Medium: Parallel Plate Channel with Isoflux Walls
Heat Transfer Research, Vol.34, 2003, issue 7&8
Kamel Hooman, A. A. Ranjbar-Kani, A. A. Kantoory