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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Autores principales:	Erxing Peng, Xiaoying Hu, Yu Sheng, Fansheng Zhou, Jichun Wu, Wei Cao
Formato:	article
Lenguaje:	EN
Publicado:	Frontiers Media S.A. 2021
Materias:	accumulated water permafrost ground temperature thermal impact calculation model Science Q
Acceso en línea:	https://doaj.org/article/f6fa6d6d5e6c43bcb2f2d28832f7b7a3
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id	oai:doaj.org-article:f6fa6d6d5e6c43bcb2f2d28832f7b7a3
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spelling	oai:doaj.org-article:f6fa6d6d5e6c43bcb2f2d28832f7b7a32021-11-10T08:16:52ZEstablishment and Verification of a Thermal Calculation Model Considering Internal Heat Transfer of Accumulated Water in Permafrost Regions2296-646310.3389/feart.2021.733483https://doaj.org/article/f6fa6d6d5e6c43bcb2f2d28832f7b7a32021-11-01T00:00:00Zhttps://www.frontiersin.org/articles/10.3389/feart.2021.733483/fullhttps://doaj.org/toc/2296-6463Water 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.Erxing PengXiaoying HuYu ShengFansheng ZhouJichun WuWei CaoFrontiers Media S.A.articleaccumulated waterpermafrostground temperaturethermal impactcalculation modelScienceQENFrontiers in Earth Science, Vol 9 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	accumulated water permafrost ground temperature thermal impact calculation model Science Q
spellingShingle	accumulated water permafrost ground temperature thermal impact calculation model Science Q Erxing Peng Xiaoying Hu Yu Sheng Fansheng Zhou Jichun Wu Wei Cao Establishment and Verification of a Thermal Calculation Model Considering Internal Heat Transfer of Accumulated Water in Permafrost Regions
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.
format	article
author	Erxing Peng Xiaoying Hu Yu Sheng Fansheng Zhou Jichun Wu Wei Cao
author_facet	Erxing Peng Xiaoying Hu Yu Sheng Fansheng Zhou Jichun Wu Wei Cao
author_sort	Erxing Peng
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 S.A.
publishDate	2021
url	https://doaj.org/article/f6fa6d6d5e6c43bcb2f2d28832f7b7a3
work_keys_str_mv	AT erxingpeng establishmentandverificationofathermalcalculationmodelconsideringinternalheattransferofaccumulatedwaterinpermafrostregions AT xiaoyinghu establishmentandverificationofathermalcalculationmodelconsideringinternalheattransferofaccumulatedwaterinpermafrostregions AT yusheng establishmentandverificationofathermalcalculationmodelconsideringinternalheattransferofaccumulatedwaterinpermafrostregions AT fanshengzhou establishmentandverificationofathermalcalculationmodelconsideringinternalheattransferofaccumulatedwaterinpermafrostregions AT jichunwu establishmentandverificationofathermalcalculationmodelconsideringinternalheattransferofaccumulatedwaterinpermafrostregions AT weicao establishmentandverificationofathermalcalculationmodelconsideringinternalheattransferofaccumulatedwaterinpermafrostregions
_version_	1718440432649633792

Establishment and Verification of a Thermal Calculation Model Considering Internal Heat Transfer of Accumulated Water in Permafrost Regions

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