| Project/Area Number |
16H06805
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| Research Category |
Grant-in-Aid for Research Activity Start-up
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| Allocation Type | Single-year Grants |
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| Research Field |
Naval and maritime engineering
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| Research Institution | Tokyo University of Marine Science and Technology |
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Principal Investigator |
Ihara Tomonori 東京海洋大学, 学術研究院, 助教 (70767350)
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| Research Collaborator |
TAKAMASA Tomoji
HAZUKU Tatsuya
ODE Tsuyoshi
TAKEDA Yasushi
KIKURA Hiroshige
POVOLNY Antonin
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| Project Period (FY) |
2016-08-26 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2017: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2016: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
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| Keywords | 超音波パルスドップラー法 / UVP法 / 気液二相流 / 超音波流速分布計 |
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| Outline of Final Research Achievements |
Development of bubble behavior monitoring system around the ship body was investigated utilizing ultrasonic pulsed Doppler method. Research has been carried out into several steps. Broadband ultrasonic transducer was firstly investigated. Special mechanism was proposed to realize higher utility for the sensor positioning. Real time measurement system was then proposed employing the state of the art digital signal processing techniques. The signal processing method itself was also investigated. Besides the traditional Euler approach, Lagrange approach was proposed to track bubble behavior in both spatial and temporal means. Finally, those techniques are successfully merged together to demonstrate the applicability of the developed measurement system.
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