Study on ice nucleation temperature and water freezing in saline soils
Abstract This paper presents a computational model of the freezing point of soil and the nucleation rate of ice based on the soil volume for saline soils. Physicochemical methods and crystallization theory are used to explore the macroscopic mechanism of water freezing induced by ice crystallization...
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crwiley:10.1002/ppp.2081 2024-09-15T18:30:16+00:00 Study on ice nucleation temperature and water freezing in saline soils Wan, Xusheng Liu, Enlong Qiu, Enxi National Natural Science Foundation of China 2020 http://dx.doi.org/10.1002/ppp.2081 https://onlinelibrary.wiley.com/doi/pdf/10.1002/ppp.2081 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/ppp.2081 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Permafrost and Periglacial Processes volume 32, issue 1, page 119-138 ISSN 1045-6740 1099-1530 journal-article 2020 crwiley https://doi.org/10.1002/ppp.2081 2024-08-01T04:18:32Z Abstract This paper presents a computational model of the freezing point of soil and the nucleation rate of ice based on the soil volume for saline soils. Physicochemical methods and crystallization theory are used to explore the macroscopic mechanism of water freezing induced by ice crystallization, and the influence of water undercooling is discussed with regard to different soil volumes and salt contents. Growth sites, shapes, and sizes of ice crystals are determined by an assumption of heterogeneous nucleation, and the contact angle is introduced to represent a wide range of soils. The relationship between the initial contact angle and the salt content is analyzed quantitatively through an indoor cooling test and thermal difference analysis. Moreover, the van Genuchten model is applied to provide an equation for the unfrozen water content in salty soils, and the probability of ice formation is introduced to investigate the variation of contact angle during the soil freezing process. This study shows that the initial radius of an ice crystal decreases as the salt concentration decreases. The temperature of ice nucleation is determined mainly by the contact angle of ice crystals, which decreases as the soil volume increases and results in decreased supercooling. Article in Journal/Newspaper Permafrost and Periglacial Processes Wiley Online Library Permafrost and Periglacial Processes 32 1 119 138 |
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English |
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Abstract This paper presents a computational model of the freezing point of soil and the nucleation rate of ice based on the soil volume for saline soils. Physicochemical methods and crystallization theory are used to explore the macroscopic mechanism of water freezing induced by ice crystallization, and the influence of water undercooling is discussed with regard to different soil volumes and salt contents. Growth sites, shapes, and sizes of ice crystals are determined by an assumption of heterogeneous nucleation, and the contact angle is introduced to represent a wide range of soils. The relationship between the initial contact angle and the salt content is analyzed quantitatively through an indoor cooling test and thermal difference analysis. Moreover, the van Genuchten model is applied to provide an equation for the unfrozen water content in salty soils, and the probability of ice formation is introduced to investigate the variation of contact angle during the soil freezing process. This study shows that the initial radius of an ice crystal decreases as the salt concentration decreases. The temperature of ice nucleation is determined mainly by the contact angle of ice crystals, which decreases as the soil volume increases and results in decreased supercooling. |
author2 |
National Natural Science Foundation of China |
format |
Article in Journal/Newspaper |
author |
Wan, Xusheng Liu, Enlong Qiu, Enxi |
spellingShingle |
Wan, Xusheng Liu, Enlong Qiu, Enxi Study on ice nucleation temperature and water freezing in saline soils |
author_facet |
Wan, Xusheng Liu, Enlong Qiu, Enxi |
author_sort |
Wan, Xusheng |
title |
Study on ice nucleation temperature and water freezing in saline soils |
title_short |
Study on ice nucleation temperature and water freezing in saline soils |
title_full |
Study on ice nucleation temperature and water freezing in saline soils |
title_fullStr |
Study on ice nucleation temperature and water freezing in saline soils |
title_full_unstemmed |
Study on ice nucleation temperature and water freezing in saline soils |
title_sort |
study on ice nucleation temperature and water freezing in saline soils |
publisher |
Wiley |
publishDate |
2020 |
url |
http://dx.doi.org/10.1002/ppp.2081 https://onlinelibrary.wiley.com/doi/pdf/10.1002/ppp.2081 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/ppp.2081 |
genre |
Permafrost and Periglacial Processes |
genre_facet |
Permafrost and Periglacial Processes |
op_source |
Permafrost and Periglacial Processes volume 32, issue 1, page 119-138 ISSN 1045-6740 1099-1530 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/ppp.2081 |
container_title |
Permafrost and Periglacial Processes |
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32 |
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1 |
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119 |
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138 |
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