Buoyancy-driven flow in saturated porous media

Hitoshi Sakamoto, Francis A. Kulacki

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

Buoyancy-driven convection on a vertical, constant heat flux surface that bounds a fluid-saturated porous medium is experimentally studied with a primary focus on developing steady-state heat transfer correlations for porous media comprising different particulate solid with water being the interstitial fluid. Results show that heat transfer coefficients can be adequately determined via a Darcy-based model, and our results confirm a correlation proposed by Bejan [1]. It is speculated that the reason that the Darcy model works well in the present case is that the porous medium has a lower effective Prandtl number near the wall than in the bulk medium. The factors that contribute to this effects include the thinning of the boundary layer near the wall and an increase of effective thermal conductivity.

Original languageEnglish (US)
Title of host publicationProceedings of the ASME Summer Heat Transfer Conference, HT 2005
Pages291-299
Number of pages9
DOIs
StatePublished - Dec 1 2005
Event2005 ASME Summer Heat Transfer Conference, HT 2005 - San Francisco, CA, United States
Duration: Jul 17 2005Jul 22 2005

Publication series

NameProceedings of the ASME Summer Heat Transfer Conference
Volume1

Other

Other2005 ASME Summer Heat Transfer Conference, HT 2005
CountryUnited States
CitySan Francisco, CA
Period7/17/057/22/05

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    Sakamoto, H., & Kulacki, F. A. (2005). Buoyancy-driven flow in saturated porous media. In Proceedings of the ASME Summer Heat Transfer Conference, HT 2005 (pp. 291-299). [HT2005-72435] (Proceedings of the ASME Summer Heat Transfer Conference; Vol. 1). https://doi.org/10.1115/HT2005-72435