2016 Fiscal Year Final Research Report
Study on quantitative evaluation of macroscopic dispersivity in unsaturated / nonuniform fields
| Project/Area Number |
25420504
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Geotechnical engineering
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| Research Institution | Kobe University |
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Principal Investigator |
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| Project Period (FY) |
2013-04-01 – 2017-03-31
|
| Keywords | 地下水汚染 / 不飽和浸透流 / 移流分散解析 / 巨視的分散長 / フィンガー流 / 不均一地盤モデル |
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| Outline of Final Research Achievements |
In recent years, serious groundwater contamination has occurred in various places. At this time, the behavior of contaminants near the ground surface is handled as advection dispersion phenomenon in the unsaturated zone, macroscopic dispersivity is very important physical property for analyzing the behavior of pollutants in the heterogeneous unsaturated zone. However, there is no established method for appropriately setting this macroscopic dispersivity. In addition, the property of the dispersivity in the case of a fingered flow in the unsaturated zone has been hardly elucidated. In this study, we tried to clarify the property of macroscopic dispersivity and propose quantitative evaluation by model experiment and numerical simulation for the advection dispersion phenomenon during vertical infiltration in unsaturated zone.
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| Free Research Field |
地盤水理学，地盤環境工学
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