Development of hybrid imaging technique for thermofluid dynamics for investigations of spatiotemporal fine structure in ion gas flow
| Project/Area Number |
24656144
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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 |
Thermal engineering
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| Research Institution | Keio University |
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Principal Investigator |
SATO Yohei 慶應義塾大学, 理工学部, 教授 (00344127)
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| Project Period (FY) |
2012-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2014: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2013: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2012: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
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| Keywords | 気流熱流動非侵襲センシング / 非線形ラマン散乱 / CARS / 自発ラマン散乱 / ラマンイメージング / フェムト秒レーザ光 / 熱流動多変量分布 / 校正曲線 / 気流熱非線形ラマン散乱 / マイナスイオン群 |
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| Outline of Final Research Achievements |
This research work focused on the development of non-intrusive sensing technique using coherent anti-Stokes Raman scattering (CARS) in order to investigate spatiotemporal fine structure of ion gas flow in micro gas device. Carbon dioxide and nitrogen were selected as gas phase. It was observed that the relationship between CARS intensity from each gas and mixture ratio had a form similar to quadratic function, which is consistent with the CARS theory. Measurements of mixture ratio in channel flow were performed at ten measurement points. The present sensing technique has an ability to measure a change in mixture ratio in the downstream region, which was confirmed by the theoretical mixing process. It can be concluded that non-intrusive measurement of gas concentration in micro device was achieved by Raman scattering, which means that fluorescent particles and dye are no longer required.
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Report
(4 results)
Research Products
(20 results)
