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International Heat Transfer Conference 16

ISSN: 2377-424X (online)
ISSN: 2377-4371 (flashdrive)

PERIODIC FREEZING OF WATER AND MELTING OF ICE IN ASPHALT AS A POROUS MEDIUM SUBJECT TO DIURNAL STEP TEMPERATURE OSCILLATIONS

Cristina Pilar Martin Linares
Northern Arizona University, College of Engineering, Forestry and Natural Sciences P. O. Box 15600, Flagstaff, AZ 86011, U. S. A.

Chun-Hsing (Jun) Ho
Northern Arizona University, College of Engineering, Forestry and Natural Sciences P. O. Box 15600, Flagstaff, AZ 86011, U. S. A.

Peter Vadasz
Department of Mechanical Engineering, Northern Arizona University, PO Box 15600, Flagstaff, Arizona 86001, USA ; Faculty of Engineering, University of KZ Natal, Durban 4041, South Africa

DOI: 10.1615/IHTC16.pma.021435
pages 7961-7968


KEY WORDS: Porous media, Nonlinear thermal fluid phenomena, Freezing, thawing, Stefan problem, temperature oscillations

Abstract

The analysis and solution to a variation of the classical Stefan-Neumann problem of melting and solidification in a porous medium is presented in this paper. The specific novel aspect in this paper is the subjecting of the top boundary to periodic freezing and melting conditions and the application of the latter to water saturated asphalt. The results show as anticipated by the analysis a sequence of chasing fronts from the surface to the interior.

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