Non-osculating Surface Skin Friction Measurement Method with Use of Laser

使用激光的非密切表面摩擦测量方法

• 批准号: 09555300
• 负责人: KUBOTA Hirotoshi
• 金额: $ 6.08万
• 依托单位: The University of Tokyo
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 1997
• 资助国家: 日本
• 起止时间: 1997 至 1999
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-09555300/
• 关键词: Surface skin friction; Skin friction drag; Non-oscuring measurement; Silicon oil film; Laser light interaction; Luminescent paint; Laminar flow control; 蛍光塗料; レーザー; 平板; 翼形; 境界層遷移; 測定法

A method of accurate non-osculating measurement of surface skin friction with the principle obtaining a thickness of silicon oil poured on the body surface by utilizing the fact that the oil thick-ness is varied by flow shearing stress is proposed. At first a method using dual-beam laser is used, where interaction between a laser beam which is reflected on the oil surface and that transferred within the oil is received by the light fiber fixed on the body surface. Secondly a method utilizing luminescent paint is adopted. This method is on the principle that the luminescent paint contained in the oil emits radiation whose intensity is proportional to oil thickness. These two methods were applied for skin friction measurement on flat plates with and without angle of attack, airfoil without angle of attack and a flat plate with laminar flow control (boundary layer suction) through error estimation. It is shown that these methods have advantage of relatively simple structure and possibility of quick and low cost measurement. The way of combining the merits of these two methods is discussed and the perspectives of non-osculating skin friction measurement method is considered through recommendations of further application to practical problems and modification of the technique.

利用硅油厚度随流动剪切应力的变化而变化的原理，提出了一种精确的非接触式表面摩擦测量方法。首先采用双光束激光的方法，即在油表面反射的激光束与在油内部传输的激光束相互作用被固定在身体表面的光纤接收。其次采用了利用发光涂料的方法。这种方法的原理是，油中所含的发光涂料会发出辐射，其强度与油的厚度成正比。通过误差估计，将这两种方法分别应用于有迎角和无迎角平板、无迎角翼型和有层流控制（边界层吸力）的平板表面摩擦测量。结果表明，这些方法具有结构相对简单、测量速度快、成本低的优点。讨论了两种方法的优点相结合的方法，并通过对非接触皮肤摩擦测量方法在实际问题中的进一步应用和技术的改进提出了展望。

项目成果

Hodota,K., Iwakura,K., Watnuki,T. and Kubota,H.: "Measuremant of Skin Friction of Space Vehicle at Low Speed with Use of Luminescent Paint"Proc. of 8th ISCOPS. 474-480 (1999)

Hodota,K.、Iwakura,K.、Watnuki,T.

Hodota, K.: "Measurement of Skin Friction of Space Vehicle at Low Speed with Use of Luminescent Paint"Proc. of 8th Inter. Space Conference of Pacific-Basin Societies, Xi'an, China. 474-480 (1999)

Hodota，K.：“使用发光涂料测量低速航天器的表面摩擦力”Proc。

Hodota, K., Iwakura, K., Watnuki, T. and Kubota, H.: "Measuremant of Skin Friction of Space Vehicle at Low Speed with Use of Luminescent Paint"Proc. Of 8th ISCOPS. 474-480 (1999)

Hodota, K.、Iwakura, K.、Watnuki, T. 和 Kubota, H.：“使用发光涂料测量低速航天器的表面摩擦力”Proc。

久保田弘敏ほか: "光ファイバの最新応用技術 ---空気摩擦センサ"株式会社CMC出版. 7 (1986)

Hirotoshi Kubota等：《光纤的最新应用技术——空气摩擦传感器》CMC出版有限公司第7期（1986年）

久保田弘敏ほか: "レーザー計測ハンドブック"丸善株式会社. 2 (1993)

Hirotoshi Kubota 等：《激光测量手册》Maruzen Co., Ltd. 2 (1993)