Settling velocity variation caused by porous structure of aggregated particle matter in stratified waters and its effect on distribution of nutrient salts.
| Project/Area Number |
26420503
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Hydraulic engineering
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| Research Institution | Kagoshima University |
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Principal Investigator |
SAITA Tomonori 鹿児島大学, 理工学域工学系, 准教授 (80432863)
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| Co-Investigator(Kenkyū-buntansha) |
橋本 彰博 福岡大学, 工学部, 准教授 (00366387)
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| Project Period (FY) |
2014-04-01 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2016: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2015: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2014: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
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| Keywords | フロキュレーション / フロック / フロック径 / 沈降速度 / フラクタル次元 / 凝集 / 懸濁物質 / 沿岸環境 / 密度成層 / 成層海域 |
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| Outline of Final Research Achievements |
In this study, experiments on settling and self-weight consolidation and 2D numerical simulation focused on the effect of a coastal structure on cohesive sediment transports are carried out to figure out a behavior of cohesive sediments in a coastal zone.
As a result of a series of experiments, basic and regional characteristics of settling and self-weight consolidation of fine sediments supplied into major inner bays located to the west coast of Kyushu island are clarified. And it is implied that significant decrease in settling velocity of flocs at pycnocline is possible, which cannot be explained only by a buoyant force acting on primary particles composing flocs.
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Report
(5 results)
Research Products
(5 results)
