Inscrição na biblioteca: Guest
Portal Digital Begell Biblioteca digital da Begell eBooks Diários Referências e Anais Coleções de pesquisa
Journal of Porous Media
Fator do impacto: 1.49 FI de cinco anos: 1.159 SJR: 0.504 SNIP: 0.671 CiteScore™: 1.58

ISSN Imprimir: 1091-028X
ISSN On-line: 1934-0508

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

Journal of Porous Media

DOI: 10.1615/JPorMedia.v5.i2.30
10 pages

Aiding and Opposing Mixed Convection from a Cylinder in a Saturated Porous Medium

M. J. Zhou
School of Aerospace and Mechanical Engineering, University of Oklahoma, Norman, OK 73019
Feng C Lai
University of Oklahoma

RESUMO

Numerical solutions are presented for mixed convection from a cylinder embedded in a saturated porous medium. Both aiding and opposing flow conditions are considered. Numerical calculations using the finite difference method with body-fitted coordinates have covered a wide range of governing parameters (i.e., 10 Ј Re Ј 100, 0 Ј Gr Ј 400 and Pr = 0.7). The present results agree well with the previous study by Badr and Pop (1988) for flows at a small Reynolds number and a small mixed convection parameter Gr/Re. However, significant discrepancies have been found between the two studies for flows at a high Reynolds number and a high mixed convection parameter Gr/Re. In addition, oscillatory flows are observed for opposing flows at high Gr/Re, which were not revealed in the previous study (Badr and Pop, 1988). Several reasons are offered to explain the discrepancies found.


Articles with similar content:

Combined Convection from a Vertical Flat Plate with Temperature Dependent Viscosity and Thermal Conductivity
International Journal of Fluid Mechanics Research, Vol.29, 2002, issue 6
M. S. Munir, Rama Subba Reddy Gorla
Effect of asymmetry on the steady thermal convection in a vertical torus filled with a porous medium
ICHMT DIGITAL LIBRARY ONLINE, Vol.2, 2004, issue
Adrian Postelnicu, Nicoleta Scurtu
Analytic Solutions of Free Convection Boundary Layer Flow Over a Vertical Flat Plate Embedded in a Porous Medium
International Journal of Fluid Mechanics Research, Vol.31, 2004, issue 6
Ioan Pop, V. Kumaran
MHD Flow and Heat Transfer Past a Semi-Infinite Vertical Plate Embedded in a Porous Medium of Variable Permeability
International Journal of Fluid Mechanics Research, Vol.35, 2008, issue 6
Dulal Pal
Flow transition behind a heated cylinder
International Heat Transfer Conference 12, Vol.1, 2002, issue
Anton A. van Steenhoven, Camilo C. M. Rindt