2021 Fiscal Year Final Research Report
Establishment of integrated inundation risk assessment method using fine-resolution wave surge coupled model
| Project/Area Number |
19K15098
|
|---|
| Research Category |
Grant-in-Aid for Early-Career Scientists
|
| Allocation Type | Multi-year Fund |
|---|
| Review Section |
Basic Section 22040:Hydroengineering-related
|
|---|
| Research Institution | Niigata University |
|---|
Principal Investigator |
|
|---|
| Project Period (FY) |
2019-04-01 – 2022-03-31
|
| Keywords | コンテナ漂流 / 高潮 / 高波浪 / 根室 / 大阪湾 / 高解像度 |
|---|
| Outline of Final Research Achievements |
This study constructed the comprehensive framework of risk assessment of storm surge hazards including the effect of the floating objects. As a real scale simulation, the storm surge simulation was performed to simulate the coastal flood associated with extra-tropical cyclone at Nemuro, Hokkaido on the middle of Dec. 2014. In addition, the storm surge hazards associated with typhoon Jebi (2019) in Osaka Bay were simulated with considering the floating containers in their simulation. The calculated final positions of the containers were in good agreement with the observation. As a experimental scale, the movement of floating objects was simulated by the numerical models, which was in good agreement with the result of previous experiment. As summary, the construction of framework of comprehensive risk assessment including the effect of floating objects in the storm surge hazards were accomplished.
|
| Free Research Field |
海岸工学
|
| Academic Significance and Societal Importance of the Research Achievements |
近年，国内外で発生している高潮災害を超高解像度高潮・波浪数値計算モデルにより再現して，漂流物の影響を考慮した浸水域のリスク評価を行った．この研究では，コンテナ漂流等の影響を考慮することで，より実現象に近い高潮災害を数値計算モデルで評価することを試みた．コンテナ漂流に関する実スケールと実験スケールの数値計算結果は観測結果・計測結果と符合していた．このように，再現が難しい高潮漂流物を含めた超高解像度高潮・波浪数値計算を構築することができた．
|
