The influence of soil water hysteresis on a saturated-unsaturated flow
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- HASEGAWA Junya
- Faculty of Engineering, Shinshu University
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- FUJINAWA Katsuyuki
- Faculty of Engineering, Shinshu University
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- EZAWA Seiichiro
- Bureau of Sewerage, Tokyo
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- TOYODA Tomiharu
- Faculty of Engineering, Shinshu University
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- WATANABE Tsugihiro
- Research Institute for Humanity and Nature
Bibliographic Information
- Other Title
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- 土壌水分ヒステリシスが飽和・不飽和浸透流に及ぼす影響
- ドジョウ スイブン ヒステリシス ガ ホウワ フホウワ シントウリュウ ニ オヨボス エイキョウ
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Abstract
Laboratory experiments using a container filled with glass beads were conducted to investigate the influence of soil water hysteresis on a saturated-unsaturated flow. Water levels of constant head tanks at the right and left boundary of the container were shifted downward first and then upward while the difference of the water levels of the tanks were kept constant. Tracer was injected at several points in the container to monitor saturated and unsaturated flow after steady states were reached at each stage. These experiments showed clear difference in the pattern of tracer trajectories governed by the soil water hysteresis. Numerical simulations including the effect of the hysteresis were also conducted to evaluate the influence of hysteresis on saturated-unsaturated flow. The simulated results matched quite well with the experiments and further were used to calculate velocity vectors and draw pathlines.
Journal
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- Journal of Groundwater Hydrology
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Journal of Groundwater Hydrology 53 (1), 25-39, 2011
Japanese Association of Groundwater Hydrology
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Keywords
Details 詳細情報について
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- CRID
- 1390282680057027072
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- NII Article ID
- 10028113359
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- NII Book ID
- AN10088275
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- BIBCODE
- 2011JGHyd..53...25H
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- ISSN
- 21855943
- 09134182
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- NDL BIB ID
- 11064389
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed