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ISSN Online: 2377-424X

International Heat Transfer Conference 5
September, 3-7, 1974, Tokyo, Japan

THERMALLY INDUCED TRANSPORT PHENOMENA IN PARTIALLY SATURATED POROUS MEDIA

Get access (open in a dialog) DOI: 10.1615/IHTC5.1000
pages 103-107

Resumo

Simultaneous heat and mass transport induced by a thermal gradient in partially saturated porous media was experimentally investigated. The particles were small enough so that the surface tension of the liquid dominated the liquid phase retention and flow within the media. The experimental apparatus consisted of two concentric copper spheres with steady, isothermal conditions at the inner and outer boundaries of the porous medium contained between the spheres. The results show the effects of temperature, heat flux, and initial liquid content on the effective thermal conductance of the partially saturated porous media. The dominant mode of convective transport is seen to change with the initial liquid content of the media.