Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2019WR026658 |
Quantification of Evaporation and Drainage Processes in Unsaturated Porous Media Using Magnetic Resonance Imaging | |
Ranzinger, Florian1; Hille-Reichel, Andrea1; Zehe, Erwin2; Guthausen, Gisela1,3; Horn, Harald1,4 | |
2020-02-01 | |
发表期刊 | WATER RESOURCES RESEARCH
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ISSN | 0043-1397 |
EISSN | 1944-7973 |
出版年 | 2020 |
卷号 | 56期号:2 |
文章类型 | Article |
语种 | 英语 |
国家 | Germany |
英文摘要 | The water loss in packed beds was studied spatially and time-resolved via magnetic resonance imaging on the pore scale. The packed beds were measured under water-saturated and unsaturated conditions, while the magnetic resonance method allowed a quantitative differentiation between air, liquid, and solid phases exploring the native contrast of the named phases without additional contrast agents. Beside a qualitative image comparison, subsequent quantitative image processing allowed for a detailed spatially resolved determination of water distribution, the differentiation between water transport processes, and the quantification of liquid clusters in 3-D. Results are presented for two packed beds that show significant differences in their evaporation and drainage dynamics, which are mainly determined by the physical properties of the packed beds. The water loss of the packed bed of 2-4 mm quartz particles reached a level below interpretability after 18.2 hr; meanwhile, a successive decrease of the largest liquid cluster volume from 82.5 to 0.7 mm(3) was observed. The water content of the packed bed of 2 mm glass spheres was still observable after 70.9 hr. During the experiment, no significant changes in the structure of the liquid clusters were measured. The current work displays the applicability of magnetic resonance imaging for pore-scale investigations without the addition of contrast agents. |
英文关键词 | MRI evaporation percolation liquid cluster |
领域 | 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000535672800065 |
WOS关键词 | TRANSPORT |
WOS类目 | Environmental Sciences ; Limnology ; Water Resources |
WOS研究方向 | Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Water Resources |
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/280527 |
专题 | 资源环境科学 |
作者单位 | 1.Karlsruhe Inst Technol, Engler Bunte Inst, Water Chem & Water Technol, Karlsruhe, Germany; 2.Karlsruhe Inst Technol, Inst Water Resources & River Basin Management, Karlsruhe, Germany; 3.Karlsruhe Inst Technol, Inst Mech Proc Engn & Mech, Karlsruhe, Germany; 4.DVGW Res Labs, Water Chem & Water Technol, Karlsruhe, Germany |
推荐引用方式 GB/T 7714 | Ranzinger, Florian,Hille-Reichel, Andrea,Zehe, Erwin,et al. Quantification of Evaporation and Drainage Processes in Unsaturated Porous Media Using Magnetic Resonance Imaging[J]. WATER RESOURCES RESEARCH,2020,56(2). |
APA | Ranzinger, Florian,Hille-Reichel, Andrea,Zehe, Erwin,Guthausen, Gisela,&Horn, Harald.(2020).Quantification of Evaporation and Drainage Processes in Unsaturated Porous Media Using Magnetic Resonance Imaging.WATER RESOURCES RESEARCH,56(2). |
MLA | Ranzinger, Florian,et al."Quantification of Evaporation and Drainage Processes in Unsaturated Porous Media Using Magnetic Resonance Imaging".WATER RESOURCES RESEARCH 56.2(2020). |
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