Suscripción a Biblioteca: Guest
Portal Digitalde Biblioteca Digital eLibros Revistas Referencias y Libros de Ponencias Colecciones
Journal of Porous Media
Factor de Impacto: 1.49 Factor de Impacto de 5 años: 1.159 SJR: 0.43 SNIP: 0.671 CiteScore™: 1.58

ISSN Imprimir: 1091-028X
ISSN En Línea: 1934-0508

Volumes:
Volumen 22, 2019 Volumen 21, 2018 Volumen 20, 2017 Volumen 19, 2016 Volumen 18, 2015 Volumen 17, 2014 Volumen 16, 2013 Volumen 15, 2012 Volumen 14, 2011 Volumen 13, 2010 Volumen 12, 2009 Volumen 11, 2008 Volumen 10, 2007 Volumen 9, 2006 Volumen 8, 2005 Volumen 7, 2004 Volumen 6, 2003 Volumen 5, 2002 Volumen 4, 2001 Volumen 3, 2000 Volumen 2, 1999 Volumen 1, 1998

Journal of Porous Media

DOI: 10.1615/JPorMedia.v2.i1.30
pages 39-58

Free Convective Boundary Layer Flow from a Heated Surface in a Layered Porous Medium

D. Andrew S. Rees
Department of Mechanical Engineering, University of Bath, Claverton Down, Bath BA2 7AY, United Kingdom

SINOPSIS

We examine theoretically the steady free convective flow from an isothermal vertical flat plate embedded in a saturated porous medium. We consider in detail the effect of parallel layering on the flow and rate of heat transfer. The layering arises from discrete changes in either the permeability or the diffusivity of the porous medium. Mathematically, the presence of layering causes the boundary layer equations to be non-similar, and these equations are solved numerically using the Keller-box method. The numerical work is supplemented by an asymptotic analysis of the flow in the far-downstream limit. Where there is a finite number of sublayers sandwiched between the heated surface and the remaining isotropic medium, detailed results are limited by the appearance of eigensolutions in the asymptotic expansion. When the medium is composed of alternating sublayers an asymptotic analysis yields an equivalent homogeneous medium.


Articles with similar content:

EFFECTS OF SORET AND DUFOUR NUMBERS ON FREE CONVECTION OVER ISOTHERMAL AND ADIABATIC STRETCHING SURFACES EMBEDDED IN POROUS MEDIA
Journal of Porous Media, Vol.14, 2011, issue 1
Abdelraheem M. Aly, Ali J. Chamkha, M. A. Mansour
Natural Convection from Combined Thermal and Mass Diffusion Buoyancy Effects in Micropolar Fluids
International Journal of Fluid Mechanics Research, Vol.27, 2000, issue 1
S.M.M. EL-Kabeir, M. A. EL-Hakiem, Rama Subba Reddy Gorla
AN ANALYSIS ON THE RADIATIVE AND FREE CONVECTIVE HEAT TRANSFER IN A HORIZONTAL ANNULUS WITH PERMEABLE INSULATOR
International Heat Transfer Conference 6, Vol.3, 1978, issue
H. Shimomura, Shu Hasegawa, Yoshizo Okamoto, Ryozo Echigo, S. Tottori
Natural Convection Laminar Flow with Temperature Dependent Viscosity and Thermal Conductivity Along a Vertical Wavy Surface
International Journal of Fluid Mechanics Research, Vol.36, 2009, issue 3
Md. Mamun Molla, Rama Subba Reddy Gorla
Nonsimilar Combined Convection Flow over a Vertical Surface Embedded in a Variable Porosity Medium
Journal of Porous Media, Vol.2, 1999, issue 3
Khalil Khanafer, Ali J. Chamkha