Establishment and Verification of a Thermal Calculation Model Considering Internal Heat Transfer of Accumulated Water in Permafrost Regions
Water accumulation in permafrost regions causes a heavy thermal impact on the frozen layer, thereby leading to its degeneration. First, based on the real heat transfer process, this study proposes relevant hypotheses and governing equations for heat calculation models involving completely melted wat...
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Online Access: | http://dx.doi.org/10.3389/feart.2021.733483 https://www.frontiersin.org/articles/10.3389/feart.2021.733483/full |
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crfrontiers:10.3389/feart.2021.733483 2024-02-11T10:04:39+01:00 Establishment and Verification of a Thermal Calculation Model Considering Internal Heat Transfer of Accumulated Water in Permafrost Regions Peng, Erxing Hu, Xiaoying Sheng, Yu Zhou, Fansheng Wu, Jichun Cao, Wei National Natural Science Foundation of China Natural Science Foundation of Gansu Province State Key Laboratory of Frozen Soil Engineering Lanzhou University of Technology 2021 http://dx.doi.org/10.3389/feart.2021.733483 https://www.frontiersin.org/articles/10.3389/feart.2021.733483/full unknown Frontiers Media SA https://creativecommons.org/licenses/by/4.0/ Frontiers in Earth Science volume 9 ISSN 2296-6463 General Earth and Planetary Sciences journal-article 2021 crfrontiers https://doi.org/10.3389/feart.2021.733483 2024-01-26T10:00:57Z Water accumulation in permafrost regions causes a heavy thermal impact on the frozen layer, thereby leading to its degeneration. First, based on the real heat transfer process, this study proposes relevant hypotheses and governing equations for heat calculation models involving completely melted water, ice-bearing water, water–soil interface, and soil under water. The models consider the water surface as a thermal boundary on account of the natural buoyancy convection mechanism in water and the phase transition process. Second, this study verifies the accuracy of the calculation models regarding the measured water and permafrost temperatures. The four seasonal vertical temperature changes in the water according to this model are found to be consistent with the actual temperature-change trend, and the permafrost temperature under water is also consistent with the actual temperature field. This study thus provides theoretical support for the thermal impact analysis of water in permafrost regions. Article in Journal/Newspaper Ice permafrost Frontiers (Publisher) Frontiers in Earth Science 9 |
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General Earth and Planetary Sciences |
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General Earth and Planetary Sciences Peng, Erxing Hu, Xiaoying Sheng, Yu Zhou, Fansheng Wu, Jichun Cao, Wei Establishment and Verification of a Thermal Calculation Model Considering Internal Heat Transfer of Accumulated Water in Permafrost Regions |
topic_facet |
General Earth and Planetary Sciences |
description |
Water accumulation in permafrost regions causes a heavy thermal impact on the frozen layer, thereby leading to its degeneration. First, based on the real heat transfer process, this study proposes relevant hypotheses and governing equations for heat calculation models involving completely melted water, ice-bearing water, water–soil interface, and soil under water. The models consider the water surface as a thermal boundary on account of the natural buoyancy convection mechanism in water and the phase transition process. Second, this study verifies the accuracy of the calculation models regarding the measured water and permafrost temperatures. The four seasonal vertical temperature changes in the water according to this model are found to be consistent with the actual temperature-change trend, and the permafrost temperature under water is also consistent with the actual temperature field. This study thus provides theoretical support for the thermal impact analysis of water in permafrost regions. |
author2 |
National Natural Science Foundation of China Natural Science Foundation of Gansu Province State Key Laboratory of Frozen Soil Engineering Lanzhou University of Technology |
format |
Article in Journal/Newspaper |
author |
Peng, Erxing Hu, Xiaoying Sheng, Yu Zhou, Fansheng Wu, Jichun Cao, Wei |
author_facet |
Peng, Erxing Hu, Xiaoying Sheng, Yu Zhou, Fansheng Wu, Jichun Cao, Wei |
author_sort |
Peng, Erxing |
title |
Establishment and Verification of a Thermal Calculation Model Considering Internal Heat Transfer of Accumulated Water in Permafrost Regions |
title_short |
Establishment and Verification of a Thermal Calculation Model Considering Internal Heat Transfer of Accumulated Water in Permafrost Regions |
title_full |
Establishment and Verification of a Thermal Calculation Model Considering Internal Heat Transfer of Accumulated Water in Permafrost Regions |
title_fullStr |
Establishment and Verification of a Thermal Calculation Model Considering Internal Heat Transfer of Accumulated Water in Permafrost Regions |
title_full_unstemmed |
Establishment and Verification of a Thermal Calculation Model Considering Internal Heat Transfer of Accumulated Water in Permafrost Regions |
title_sort |
establishment and verification of a thermal calculation model considering internal heat transfer of accumulated water in permafrost regions |
publisher |
Frontiers Media SA |
publishDate |
2021 |
url |
http://dx.doi.org/10.3389/feart.2021.733483 https://www.frontiersin.org/articles/10.3389/feart.2021.733483/full |
genre |
Ice permafrost |
genre_facet |
Ice permafrost |
op_source |
Frontiers in Earth Science volume 9 ISSN 2296-6463 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3389/feart.2021.733483 |
container_title |
Frontiers in Earth Science |
container_volume |
9 |
_version_ |
1790601341965434880 |