| Project/Area Number |
07555067
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| Research Category |
Grant-in-Aid for Scientific Research (A)
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| Allocation Type | Single-year Grants |
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| Section | 試験 |
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| Research Field |
Thermal engineering
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| Research Institution | The University of Tokyo |
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Principal Investigator |
KASAGI Nobuhide The University of Tokyo Faculty of Engineering, Professor, 大学院・工学系研究科, 教授 (80107531)
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| Project Period (FY) |
1995 – 1996
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| Project Status |
Completed (Fiscal Year 1996)
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| Budget Amount *help |
¥9,500,000 (Direct Cost: ¥9,500,000)
Fiscal Year 1996: ¥3,500,000 (Direct Cost: ¥3,500,000)
Fiscal Year 1995: ¥6,000,000 (Direct Cost: ¥6,000,000)
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| Keywords | Heat and Fluid Flow / Non-invasive Measurement / 3D Measurement / Particle Image Velocimetry / Laser Induced Fluorescence / Scanning Laser Sheet / Stratified Mixing Layr / High Definition TV System / 計測 / 速度 / 温度 / 画像処理 / レーザ誘起蛍光法 / 三次元測定 / 熱流動 / 三次元計測 |
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| Research Abstract |
A combined velocity and temperature measurement system based on particle image velocimetry (PIV) and laser-induced fluorescence (LIF) was developed by using a high definition TV system (HDVS). This technique provides four-dimensional (spatially and temporally varying) data sets through scanning a measurement volume with a laser sheet. The uncertainty intervals associated with measured celocity and temperature were decreased to about 50% of those in previous results owing to high spatial resolution of the HDVS.The present technique has been successfully applied to stably and unstably stratified mixing layrs in a rectangular cross-section duct. It is demonstrated that the present technique can offer precise distributions of velocity and temperature fluctuations and also turbulent heat fluxes.
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