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変動する風向測定の試み
https://jaxa.repo.nii.ac.jp/records/35224
https://jaxa.repo.nii.ac.jp/records/3522412585a73-55e8-4b0a-a851-1e1575412f06
名前 / ファイル | ライセンス | アクション |
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SA4137120.pdf (1.2 MB)
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Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
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公開日 | 2015-03-26 | |||||
タイトル | ||||||
タイトル | 変動する風向測定の試み | |||||
言語 | ||||||
言語 | jpn | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | departmental bulletin paper | |||||
その他のタイトル(英) | ||||||
その他のタイトル | A Measurement of Fluctuating Flow Angle | |||||
著者 |
田中, 英穂
× 田中, 英穂× TANAKA, Hideo |
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出版者 | ||||||
出版者 | 東京大学航空研究所 | |||||
書誌情報 |
東京大学航空研究所集報 巻 3, 号 1, p. 37-51, 発行日 1962-03 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | 圧縮機内部の非定常流れを実験的に研究するには,変動する圧力,速度,風向等の測定が必要である.このうち変動する風向に関しては未だその測定方法が確立されていない.そこで一つの試みとして熱線を利用する方法につき検討を行なった.一般に風向変動のある所では同時に速度変動もあることが多く,熱線を利用する場合この速度変動による感度変化をなんらかの方法により補償する必要がある.この点に関し熱線を種々の形式に作動させた場合の特性について理論的に解析した結果,定電圧型作動方式もしくはそれに近い作動方式において一応目的の達せられる可能性が得られた.これは熱線の抵抗値が風速により変ることを利用して加熱電流を制御する方法である.そこで実際に熱線を利用した動的風向計を試作し実験を行なった結果,なお改良すべき点は多く使用可能の周波数範囲は限られているがほぼ満足すべき結果が得られた. | |||||
抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | Concerning experimental investigations of unsteady flow phenomena in compressors, measurements of fluctuation of pressure, velocity and flow angle are required. Among them the measuring method of fluctuating flow angle is behind the other two in its development. The author tried to measure it by a dynamic yaw meter making use of hot-wire method. Generally in a flow field where fluctuating flow angle (or gradient of flow angle) exists, at the same time there exists velocity fluctuation (or gradient of velocity). In this case, in order to measure a correct value of instant flow angle, we should compensate the error resulted from such a velocity fluctuation. He analyzed characteristics of several types of operation of hot-wire circuits, such as constant temperature type, constant voltage type and so on. In his conclusion he found the fact that constant voltage type or its modification produced a good result. Thus he made a proto-type of dynamic yaw meter along this line and tested it. This method has not completed yet, but after he applied it to the measurement of a fluctuating inlet air angle to rotor blades under the condition of rotating stall in an axial flow compressor, he found the result was satisfactory. | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0563-8097 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AN00162214 | |||||
資料番号 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 資料番号: SA4137120000 |