Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2020WR027381 |
Utilization of Non‐equilibrium Phase Change Approach to Analyze the Non‐isothermal Multiphase Flow in Shallow Subsurface Soils | |
Mohammadreza Mir Tamizdoust; Omid Ghasemi‐; Fare | |
2020-08-03 | |
发表期刊 | Water Resources Research
![]() |
出版年 | 2020 |
英文摘要 | The prediction of coupled non‐isothermal multiphase flow in porous media has been the subject of many theoretical and experimental studies in the past half a century. In particular, the evaporation phenomenon from the shallow subsurface has been extensively studied based on the notion of equilibrium phase change between liquid water and water vapor (i.e. instantaneous phase change). One of the frequent assumptions in equilibrium phase change approach is that liquid water is hydraulically connected throughout the vadose zone. Furthermore, classical soil‐water retention curves (e.g. van Genuchten model), which have been extensively used in the literature to model evaporation process, are only valid for high and intermediate saturation degrees. Although, these limitations have been addressed and improved in separate studies, they have not yet been rigorously incorporated in the numerical modeling of non‐isothermal multiphase flow in shallow subsurface of in‐field soils. Therefore, the aim of this study is to investigate the coupled heat, liquid, and vapor flow in soil media through the Hertz‐Knudsen‐Schrage (HKS) phase change model and by incorporating a water retention model which captures the soil‐water characteristics from full to oven‐dried saturation degrees. A numerical model is developed and validated against the in‐field experimental data. Reasonable agreements between the calculated and measured values of water contents at all depths, as well as the temperature, and cumulative evaporation are observed. Results also confirm that the contribution of the film flow in overall mass flow in the medium is required for accurate modeling and cannot be ignored. |
领域 | 资源环境 |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/287764 |
专题 | 资源环境科学 |
推荐引用方式 GB/T 7714 | Mohammadreza Mir Tamizdoust,Omid Ghasemi‐,Fare. Utilization of Non‐equilibrium Phase Change Approach to Analyze the Non‐isothermal Multiphase Flow in Shallow Subsurface Soils[J]. Water Resources Research,2020. |
APA | Mohammadreza Mir Tamizdoust,Omid Ghasemi‐,&Fare.(2020).Utilization of Non‐equilibrium Phase Change Approach to Analyze the Non‐isothermal Multiphase Flow in Shallow Subsurface Soils.Water Resources Research. |
MLA | Mohammadreza Mir Tamizdoust,et al."Utilization of Non‐equilibrium Phase Change Approach to Analyze the Non‐isothermal Multiphase Flow in Shallow Subsurface Soils".Water Resources Research (2020). |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论