Abonnement à la biblothèque: Guest
Portail numérique Bibliothèque numérique eBooks Revues Références et comptes rendus Collections
Journal of Porous Media
Facteur d'impact: 1.061 Facteur d'impact sur 5 ans: 1.151 SJR: 0.504 SNIP: 0.671 CiteScore™: 1.58

ISSN Imprimer: 1091-028X
ISSN En ligne: 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

RÉSUMÉ

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:

HEAT TRANSFER ENHANCEMENT IN MICROCHANNELS BY UTILIZING THE Al2O3−WATER NANOFLUID
Heat Transfer Research, Vol.43, 2012, issue 8
Junhong Zhang, Xinxin Zhang, Liancun Zheng, Shuangling Dong
HEAT TRANSFER BY RECIRCULATING FLOW WITH BODY FORCES IN A RECTANGULAR CAVITY. A NUMERICAL STUDY.
International Heat Transfer Conference 5, Vol.4, 1974, issue
A. Latrobe , Ph. J. Vernier, D. Grand
An Experimental Investigation of the Performance of Cross-Corrugated Plate Heat Exchangers
Journal of Enhanced Heat Transfer, Vol.10, 2003, issue 4
Mir-Akbar Hessami
Numerical Study of Natural Convection in a Vertical Cylindrical Annulus Using a Non-Darcy Equation
Journal of Porous Media, Vol.5, 2002, issue 2
B. M. R. Prasanna, M. Venkatachalappa
AN EFFICIENT NUMERICAL INTEGRATION ALGORITHM FOR INTEGRAL TRANSFORM SOLUTION OF NONLINEAR CONVECTION-DIFFUSION PROBLEMS
Hybrid Methods in Engineering, Vol.2, 2000, issue 4
Humberto Araujo Machado