Determination of the hydrodynamic condition in artificial ground freezing based on multi-field coupling theory

IF 5.1 3区工程技术 Q2 ENERGY & FUELS

Thermal Science and Engineering Progress Pub Date : 2025-01-25 DOI:10.1016/j.tsep.2025.103307

Zhiming Li , Rui Jiang , Aiping Tang , Kudryavtsev Sergey Anatolyevich

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引用次数: 0

Abstract

Artificial Ground Freezing (AGF) represents a widely adopted auxiliary technology utilized to mitigate groundwater infiltration and ensure the stability of excavation faces in underground construction endeavors. Notably, the hydrodynamic condition stands as the primary contributor to the non-uniformity observed in the freezing curtain. However, directly assessing the hydrodynamic condition during the construction of AGF poses a formidable challenge. In this study an moisture-heat model was initially formulated, incorporating two boundary treatment methodologies, to quantify temperature variations throughout the AGF under different hydrodynamic conditions. Given the inherent uncertainties associated with hydrodynamic conditions, a novel approach grounded in optimization theory (MHO) was proposed and integrated with the moisture-heat model. This methodology aims to ascertain the hydrodynamic condition within AGF by minimizing the summation of squared differences between calculated and monitored temperatures at selected, typical measurement points throughout the entire freezing. The proposed method was numerically resolved and subsequently validated through rigorous laboratory tests conducted by fellow researchers. The results indicate that the methodology presented in this paper offers more accurate predictions of hydrodynamic conditions; the comparison between calculated and monitored temperatures under optimized hydrodynamic conditions exhibits a significantly closer alignment than that obtained when solely considering horizontal hydrodynamic conditions.

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来源期刊

Thermal Science and Engineering Progress Chemical Engineering-Fluid Flow and Transfer Processes

CiteScore

7.20

自引率

10.40%

发文量

327

审稿时长

41 days

期刊介绍： Thermal Science and Engineering Progress (TSEP) publishes original, high-quality research articles that span activities ranging from fundamental scientific research and discussion of the more controversial thermodynamic theories, to developments in thermal engineering that are in many instances examples of the way scientists and engineers are addressing the challenges facing a growing population – smart cities and global warming – maximising thermodynamic efficiencies and minimising all heat losses. It is intended that these will be of current relevance and interest to industry, academia and other practitioners. It is evident that many specialised journals in thermal and, to some extent, in fluid disciplines tend to focus on topics that can be classified as fundamental in nature, or are ‘applied’ and near-market. Thermal Science and Engineering Progress will bridge the gap between these two areas, allowing authors to make an easy choice, should they or a journal editor feel that their papers are ‘out of scope’ when considering other journals. The range of topics covered by Thermal Science and Engineering Progress addresses the rapid rate of development being made in thermal transfer processes as they affect traditional fields, and important growth in the topical research areas of aerospace, thermal biological and medical systems, electronics and nano-technologies, renewable energy systems, food production (including agriculture), and the need to minimise man-made thermal impacts on climate change. Review articles on appropriate topics for TSEP are encouraged, although until TSEP is fully established, these will be limited in number. Before submitting such articles, please contact one of the Editors, or a member of the Editorial Advisory Board with an outline of your proposal and your expertise in the area of your review.