ライブラリ登録: Guest
Begell Digital Portal Begellデジタルライブラリー 電子書籍 ジャーナル 参考文献と会報 リサーチ集
Journal of Porous Media
インパクトファクター: 1.49 5年インパクトファクター: 1.159 SJR: 0.43 SNIP: 0.671 CiteScore™: 1.58

ISSN 印刷: 1091-028X
ISSN オンライン: 1934-0508

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

Journal of Porous Media

DOI: 10.1615/JPorMedia.v4.i2.40
12 pages

Effects of Heterogeneity in Forced Convection in a Porous Medium: Parallel-Plate Channel, Asymmetric Property Variation, and Asymmetric Heating

D A Nield
University of Auckland Auckland, New Zealand

要約

The effects of variation (in the transverse direction) of permeability and thermal conductivity on fully developed forced convection in a parallel plate channel or circular duct filled with a saturated porous medium is investigated analytically on the basis of a Darcy model. Previous work on the case of symmetric property variation and symmetric heating is now supplemented by a study of the case of asymmetric property variation, for both symmetric and asymmetric heating, lsoflux and isotemperature boundary conditions are treated in turn. For the isofiux case, it is found that both permeability variation and conductivity variation lead to a reduction in the value of the Nusselt number Nu based on mean properties, but for the isotemperature case the situation is more complicated. For the isoflux case and permeability variation only, Nu is independent of the degree of asymmetric heating as represented by a flux ratio τ, but in the case of conductivity variation Nu is strongly dependent on τ and the degree of conductivity variation. In the case of isotemperature boundary conditions no fully developed solution exists when both the property variation and the heating are asymmetric.


Articles with similar content:

SELF-PRESERVATION IN ZERO PRESSURE GRADIENT TURBULENT BOUNDARY LAYERS
TSFP DIGITAL LIBRARY ONLINE, Vol.9, 2015, issue
Krishna M. Talluru, Lyazid Djenidi, Md. Kamruzzaman, Robert Anthony Antonia
Natural Convection in Tilted Porous Enclosures in the Presence of a Transverse Magnetic Field
Journal of Porous Media, Vol.3, 2000, issue 1
N. M. Al-Najem, Khalil Khanafer, M. M. El-Refaee
BUOYANCY OPPOSED MIXED CONVECTION IN A TWO-SIDED LID-DRIVEN DIFFERENTIALLY HEATED SQUARE CAVITY FILLED WITH A POROUS MEDIUM
Journal of Porous Media, Vol.13, 2010, issue 12
Manab Kumar Das, Elaprolu Vishnuvardhanarao
DNS OF TURBULENT HEAT TRANSFER IN A CHANNEL FLOW WITH STREAMWISELY VARYING THERMAL BOUNDARY CONDITION
TSFP DIGITAL LIBRARY ONLINE, Vol.4, 2005, issue
Yohji Seki, Hiroshi Kawamura
LOCAL THERMAL NONEQUILIBRIUM EFFECTS ON NATURAL CONVECTION IN A POROUS CAVITY HEATED AND COOLED FROM THE SIDE IN A SPATIALLY SINUSOIDAL MANNER
Journal of Porous Media, Vol.19, 2016, issue 2
Feng Wu, Wenjing Zhou