不飽和浸透解析によるヒステリシス効果の検証

二次元浸透流への適用

抄録

Hysteresis effect is one of the soil characteristics, and it is important for groundwater analysis involving dynamic water movement. In this study, a 2D model based on Richards equation expressed on unsaturated infiltration theory with considered hysteresis effect, was developed. To discuss the model, numerical analysis and experiments were carried out on three conditions in the view of discharge and water balance.
As the analysis using the soil parameters measured by experiments, this model is more effective to simulate real water movement than the model without hysteresis effect. As these results, this model is useful to analyze 2D soil water movement and apply to 3D model.