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Numerical realisation of freezing processes in frost‐resistant plant tissues
Author(s) -
Eurich Lukas,
Wagner Arndt,
Ehlers Wolfgang
Publication year - 2017
Publication title -
pamm
Language(s) - English
Resource type - Journals
ISSN - 1617-7061
DOI - 10.1002/pamm.201710062
Subject(s) - frost (temperature) , realisation , phase change , porous medium , milestone , front (military) , numerical modeling , mechanics , environmental science , materials science , geotechnical engineering , porosity , geology , mechanical engineering , engineering , composite material , physics , engineering physics , geophysics , geography , archaeology , quantum mechanics
Abstract Understanding functional principles of frost‐resistant plant tissues under frost conditions is considered as an important milestone with regard to frost damage prevention in construction materials, as plant tissues are capable to withstand many freezing and thawing cycles without any damage. This contribution introduces a modelling approach for the biological role model based on the Theory of Porous Media (TPM) with an emphasis on structural properties and the phase transition of extracellular water. The presented numerical examples show the ice formation, represented by a frost front, where also structural effects of the plant's microstructure, such as inhomogeneity, can be considered in a numerical investigation. (© 2017 Wiley‐VCH Verlag GmbH & Co. KGaA, Weinheim)