| Budget Amount *help |
¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2015: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2014: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2013: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
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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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