| Project/Area Number |
15K13866
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Fluid engineering
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| Research Institution | Shizuoka University |
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Principal Investigator |
SAITO Takayuki 静岡大学, グリーン科学技術研究所, 教授 (10324328)
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| Project Period (FY) |
2015-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2016: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2015: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
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| Keywords | 流体工学 / 混相流 / 液膜 / スペクトル干渉 / フェムト秒レーザーパルス / 時間分解計測 / 時間分解照射 / 吸収分光計測 |
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| Outline of Final Research Achievements |
Making the best use of extraordinary characteristics (i.e. ultra-short pulse duration, strong coherency, ultra-high energy density, multi-photon absorption and wide band) of a femtosecond laser pulse (FSLP), a new principle of measurement of a thin water film formed on a stator vane of steam turbine. First, the FSLP was split into two laser pulses with an ultra-small interval from several-hundred femtoseconds to several picoseconds. Second, the first pulse was used as a priority pulse that is absorbed by the water molecules in the optical path, and the second pulse was used as a sensing pulse. Thus, a new principle based on the interference intensity of this sensing pulse was developed to accurately measure a thin water film.
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