2010 Fiscal Year Final Research Report
Modeling coupled water, heat and solute transport in unsaturated soils during freezing and thawing with meltwater infiltration.
| Project/Area Number |
20589001
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Irrigation, drainage and rural engineering/Rural planning
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| Research Institution | Mie University |
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Principal Investigator |
WATANABE Kunio Mie University, 大学院・生物資源学研究科, 准教授 (10335151)
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| Project Period (FY) |
2008 – 2010
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| Keywords | 凍土 / 浸潤 / 水・熱移動 / 水分特性曲線 / 不飽和透水係数 / 不凍水 / 数値解析 |
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| Research Abstract |
We developed moisture-and thermo-sensors, thermo-dielectric-analyzer and double-ring-permeameter, and obtained hydraulic and thermal properties of frozen unsaturated soils. We also performed directional column freezing experiments and showed the water, heat and solute transport during soil freezing/thawing, and meltwater infiltration into frozen soil. Based on these data, numerical calculations were carried out, and a coupled water and heat transport model for soil freezing process designed with non equilibrium formation of ice was proposed. Modifying the model to simulate infiltration with soil thawing is the issue in the future.
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