2021 Fiscal Year Final Research Report
Development of visualization method of pressure distribution on a fin rotating at a slow-speed
| Project/Area Number |
20K20978
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| Research Category |
Grant-in-Aid for Challenging Research (Exploratory)
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| Allocation Type | Multi-year Fund |
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| Review Section |
Medium-sized Section 19:Fluid engineering, thermal engineering, and related fields
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| Research Institution | National Institute of Advanced Industrial Science and Technology |
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Principal Investigator |
Someya Satoshi 国立研究開発法人産業技術総合研究所, エネルギー・環境領域, 副研究部門長 (00357336)
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| Co-Investigator(Kenkyū-buntansha) |
李 艶栄 茨城大学, 理工学研究科(工学野), 准教授 (20712821)
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| Project Period (FY) |
2020-07-30 – 2022-03-31
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| Keywords | 燐光 / 圧力 / 可視化 / 強度法 / 寿命法 |
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| Outline of Final Research Achievements |
In this study, a novel high-sensitivity detection method was developed to realize quantitative visualization measurement of pressure distribution under conditions of small pressure difference near atmospheric pressure. All conventional PSP high-sensitivity technologies, such as the advancement of coating films, can be utilized without modification, and the pressure sensitivity in the vicinity of atmospheric pressure has been increased by devising the detection method. By combining both the lifetime of phosphorescence responsive to oxygen partial pressure and the maximum luminescence intensity, a significant improvement in pressure sensitivity was achieved. Methods requiring and not requiring reference images were developed.
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| Free Research Field |
熱流動計測
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| Academic Significance and Societal Importance of the Research Achievements |
従来の高感度計測技術の良いところを全て享受でき，画像取得タイミングチャートのみの改良によって大幅な高感度化を達成できた点は，同分野の他の技術にも波及しうる他，高感度解析を通じた流動現象の解明は様々な基礎科学研究の推進に貢献する．また，この手法によりファンの周りの騒音の低減など，従来は圧力分布計測が困難で必ずしも効率的な改善ができなかった実用機器の効率改善など高度化を期待できる．
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