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Abstract:
The freezing of water in saturated porous media depends on characteristics such as pore size, grain distribution, and boundary conditions. In this constribution, we present mathematical models of the freeze/thaw process of a saturated soil sample at the laboratory scale and at the pore scale. These models are based on balance laws for mass, momentum, and enthalpy in porous structures and on tracking the phase interface between ice and water. We investigate the dependence of these models on initial conditions, material properties, and boundary conditions. This improves our understanding of freeze/thaw processes observed under laboratory conditions.
Keywords: freezing, thawing, finite-element method, porous media, Stefan problem
References:
M. Sobotková, A. Žák, M. Beneš, M. Sněhota: Experimental and numerical investigation of water freezing and thawing in fully saturated sand, J. Hydrol. Hydromech., Vol. 72, No. 3, 2024, p. 336-348, DOI: 10.2478/johh-2024-0018.
M. Jex M., M. Beneš, M. Sněhota, M. Sobotková and J. Jeřábek: Numerical Simulation of Freeze/Thaw Front Propagation in a Sample of Porous Media, In ALGORITMY 2024, 22th Conference on Scientific Computing, High Tatra Mountains, Slovakia, March 15-20, 2024, Proceedings of contributed papers, Editors: P. Frolkovič, K. Mikula and D. Ševčovič. Published by Jednota slovenských matematikov a fyzikov, Bratislava, 2024, ISBN: 978-80-89829-33-0, pp. 139–148.
A. Žák, M. Beneš, and T.H. Illangasekare: Pore-scale model of freezing inception in a porous medium , Comput. Methods Appl. Mech. Engrg., Volume 414, 1 September 2023, 116166, DOI: 10.1016/j.cma.2023.116166.
| Country | Czech Republic |
|---|---|
| Green Housing & Porous Media Focused Abstracts | This abstract is related to Green Housing |
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