2017 Fiscal Year Final Research Report
Development and verification of numerical model for dike breaching using 3D multi-phase flow model
Project/Area Number |
15K18122
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Research Category |
Grant-in-Aid for Young Scientists (B)
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Allocation Type | Multi-year Fund |
Research Field |
Hydraulic engineering
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Research Institution | Kyoto University |
Principal Investigator |
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Project Period (FY) |
2015-04-01 – 2018-03-31
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Keywords | 破堤 / 予測モデル / 越流 / 浸透流 |
Outline of Final Research Achievements |
Dike failures recently occur during floods, and it is of great importance to predict the dike failure process accurately for disaster mitigation. In this study, a density function method and a porous media approach are applied for the three-dimensional flow model, to consider water surface variations in unsteady flow conditions and the filtration through the embankment. The simulation of the dike breaching process due to overtopping is carried out, by using the developed flow model and the bed deformation model. In addition, a numerical model to predict the dike failure process due to seepage flows is proposed, coupling the flow model with the soil deformation model based on GIMP method.
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Free Research Field |
河川工学
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