一个新的脱模型,用于冷土壤中的水和热的合和数值分析
Peipei Chen1, Zhi Shang2, Ruisong Zhu2
1School of Science, Beijing University of Civil Engineering and Architecture, No. 1, Zhanlanguan Rd., Xicheng District, Beijing, 100044, China. chenpeipei@bucea.edu.cn.
Scientific reports
|April 21, 2025
概括
这项研究提出了一个新的模型,用于冷土壤中的水热转移,考虑相变. 该模型与现实世界的数据进行了验证,有助于理解寒冷地区的低温行为.
科学领域:
- 地质技术工程 地质技术工程
- 环境科学 环境科学
- 物理 物理学 物理
背景情况:
- 由于复杂的合水热过程,冷土壤工程提出了挑战.
- 阶段变化现象显著影响土壤的行为和稳定性.
- 准确的建模对于寒冷地区的基础设施发展至关重要.
研究的目的:
- 开发冷土壤中合热水过程的理论模型,并纳入相变效应.
- 通过新的脱控制方程来促进数值实现.
- 分析寒冷地区的水热迁移.
主要方法:
- 基于能量和质量保存原理以及土壤结曲线的理论模型的开发.
- 解控制方程的数学导出,用于数值实现.
- 使用重新开发的COMSOL平台模块和嵌入的冷土壤理论进行数值建模.
- 使用冷地区亚等级的现场监测数据验证数值计算.
主要成果:
- 建立了一个可靠和准确的数值模型来模拟冷土壤中的水热过程.
- 该模型成功地捕捉了水和热传递在相变条件下的复杂相互作用.
- 对中国西北部一个特定的亚级分析揭示了详细的水热迁移特征.
结论:
- 开发的理论模型和数值方法对于研究冷土壤行为是有效的.
- 这些发现为在寒冷环境下分级的水热迁移反应提供了宝贵的见解.
- 这项研究为寒冷地区的工程实践提供了技术支持.
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