单调和循环气候条件下砂岩壁的冰透镜现象

IF 5 2区工程技术 Q1 ENGINEERING, MECHANICAL

International Journal of Heat and Mass Transfer Pub Date : 2024-11-27 DOI:10.1016/j.ijheatmasstransfer.2024.126473

You Wang, Falk K. Wittel

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引用次数: 0

摘要

本研究建立了一个耦合的一维（1D）热机械模型，以探讨在不断变化的气候条件下多孔建筑材料（特别是砂岩）中冰透镜的形成。热传导与冰透镜模型相结合，预测了冰透镜随温度曲线变化而形成和增长的过程。同时，在计算温度曲线时，还考虑了冰透镜演变导致的系统有效特性的变化。将单调冷却和循环气候条件应用于砂岩壁，以研究不同材料参数和边界条件对冰透镜的影响。确定了周期性冰透镜的触发条件。最后，在循环气候条件下的模拟中显示了冰透镜的周期性演变（即生长、融化和再冻结）。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Ice lensing in sandstone walls under monotonic and cyclic climatic conditions

A coupled one-dimensional (1D) thermo-mechanical model is developed to explore the ice lens formation in porous building materials, specifically sandstone, under changing climatic conditions. Heat conduction is coupled to an ice lens model to predict the formation and growth of ice lenses with the change of the temperature profile. Simultaneously, changes in the effective properties of the system due to evolving ice lenses are considered for calculating the temperature profile. Monotonic cooling and cyclic climatic conditions are applied to a sandstone wall to investigate the effects of different material parameters and boundary conditions on ice lensing. Triggering conditions for periodic ice lensing are identified. Finally, the periodic evolution of ice lenses (i.e., growing, melting, and re-freezing) is shown in the simulations under cyclic climatic conditions.

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来源期刊

International Journal of Heat and Mass Transfer 工程技术-工程：机械

CiteScore

10.30

自引率

13.50%

发文量

1319

审稿时长

41 days

期刊介绍： International Journal of Heat and Mass Transfer is the vehicle for the exchange of basic ideas in heat and mass transfer between research workers and engineers throughout the world. It focuses on both analytical and experimental research, with an emphasis on contributions which increase the basic understanding of transfer processes and their application to engineering problems. Topics include: -New methods of measuring and/or correlating transport-property data -Energy engineering -Environmental applications of heat and/or mass transfer