Development of high accuracy simulator in coastal ocean
| Project/Area Number |
24760398
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Hydraulic engineering
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| Research Institution | Kyushu University |
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Principal Investigator |
AKIRA TAI 九州大学, 高等研究院, 助教 (20585921)
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| Project Period (FY) |
2012-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2014: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2013: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2012: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
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| Keywords | 数値シミュレーション / 潮汐 / 長期変化 / 粒子法 / 乱流エネルギー / 沿岸海域 / 数値実験 / 有明海 / 現地観測 / 外洋潮汐 / 海面上昇 |
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| Outline of Final Research Achievements |
I carried out development of high accuracy simulator in coastal ocean. First, I considered about tidal amplitude used for open boundary. Measurement data analysis showed that rapid sea level rise and decrease in M2 tide amplitude were generated at observatories facing the East China Sea around 1998. I observed the current velocity at more than one spot in a conspicuous Isahaya Bay of water quality deterioration at summer and winter of 2013 for the purpose of explication of properties of tidal current. The solution for the shallow water equations using smoothed particle hydrodynamics (SPH) method is useful and attractive. But the SPH method has serious instability problem and error because there are quite few studies about improvement and effectiveness analysis. So in this study, I improved the SPH method based on the shallow water equations and evaluated practical applicability to the coastal ocean.
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Report
(4 results)
Research Products
(13 results)
