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Experimental and numerical investigation of water freezing and thawing in fully saturated sand.
- Source :
- Journal of Hydrology & Hydromechanics / Vodohospodarsky Casopis; Sep2024, Vol. 72 Issue 3, p336-348, 13p
- Publication Year :
- 2024
-
Abstract
- This paper presents an experimental and numerical study of the freezing-thawing behavior of water in fully saturated sand. A relatively inexpensive and easily replicable experimental procedure was developed to simulate the freezing-thawing cycles in a medium-sized sand sample placed in a modified commercial freezer. By insulating the sides and bottom of the sample well, while allowing good thermal conductivity at the top of the sample, a nearly vertical advance of the freezing and thawing front was achieved. A series of freeze-thaw cycles were performed with higher and lower temperature gradients. A numerical multiphysics model, assuming an axially symmetric geometry based on the transient heat transfer during the phase transition, used a parametric approach to estimate the effective thermal properties of the sand-water-ice system. A good agreement between experimental and modelling results was shown, but slightly different parameter sets were obtained for each temperature gradient. The presented method could be a simple way to characterize the freeze-thaw process in natural and artificial porous materials. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 0042790X
- Volume :
- 72
- Issue :
- 3
- Database :
- Complementary Index
- Journal :
- Journal of Hydrology & Hydromechanics / Vodohospodarsky Casopis
- Publication Type :
- Academic Journal
- Accession number :
- 179047178
- Full Text :
- https://doi.org/10.2478/johh-2024-0018