| Project/Area Number |
09450379
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
海洋工学
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| Research Institution | Osaka Prefecture University |
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Principal Investigator |
OKUNO Taketoshi Osaka Prefecture University, Professor, 工学部, 教授 (60081395)
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| Co-Investigator(Kenkyū-buntansha) |
OTSUKA Koji Osaka Prefecture University, Assistant Professor, 工学部, 講師 (90213769)
BABA Nobuhiro Osaka Prefecture University, Associate Professor, 工学部, 助教授 (10198947)
NISHIO Shigeru Osaka Prefecture University, Associate Professor, 工学部, 助教授 (30208136)
IKEDA Yoshio Osaka Prefecture University, Professor, 工学部, 教授 (10117989)
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| Project Period (FY) |
1997 – 1998
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| Project Status |
Completed (Fiscal Year 1998)
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| Budget Amount *help |
¥6,400,000 (Direct Cost: ¥6,400,000)
Fiscal Year 1998: ¥2,100,000 (Direct Cost: ¥2,100,000)
Fiscal Year 1997: ¥4,300,000 (Direct Cost: ¥4,300,000)
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| Keywords | Image Measurement / Statistical Analysis / PIV / Flow Visualization / Tracer Particle / Time Average / Flow Field Measurement / Ship Wake Flow |
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| Research Abstract |
The principle and its application of the measurement method using statistical analysis of visualized flow image have been shown.
A new algorithm for the image measurement technique has developed using the passing probability of a particle. The method is extended by the Lagrange's differentiation to generalized case such as spatio-temporal derivative method. Of course, this method is effective for steady flow and also for the measurement of time average flow velocity filed only. It is useful, however, for the measurement of wake distribution behind ship, for which it takes long time by Pitot Tube. It is also possible to measure the three-dimensional velocity vector. A new fluorescent tracer particle has developed using synthetic adsorbent and rhodamine-B.in this research. It is applicable to the other PIV measurement.
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