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振動する翼列の吹下ろしの一計算
https://jaxa.repo.nii.ac.jp/records/44621
https://jaxa.repo.nii.ac.jp/records/44621dd3e49b4-589f-443b-8dba-da4ffb9f3c77
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
naltr00373.pdf (700.4 kB)
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| Item type | テクニカルレポート / Technical Report(1) | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 公開日 | 2015-03-26 | |||||||||
| タイトル | ||||||||||
| タイトル | 振動する翼列の吹下ろしの一計算 | |||||||||
| 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_18gh | |||||||||
| 資源タイプ | technical report | |||||||||
| その他のタイトル（英） | ||||||||||
| その他のタイトル | An Analysis for Downwash behind Oscillating Cascades | |||||||||
| 著者 |
市川, 輝雄
× 市川, 輝雄
× ICHIKAWA, Teruo
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| 著者所属 | ||||||||||
| 航空宇宙技術研究所機体第一部 | ||||||||||
| 著者所属（英） | ||||||||||
| en | ||||||||||
| First Airframe Division, National Aerospace Laboratory(NAL) | ||||||||||
| 出版者 | ||||||||||
| 出版者 | 航空宇宙技術研究所 | |||||||||
| 出版者（英） | ||||||||||
| 出版者 | National Aerospace Laboratory(NAL) | |||||||||
| 書誌情報 |
航空宇宙技術研究所報告 en : Technical Report of National Aerospace Laboratory TR-373 巻 373, p. 9, 発行日 1974-06 |
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| 抄録（英） | ||||||||||
| 内容記述タイプ | Other | |||||||||
| 内容記述 | An approximate theory is developed for analysing downwashes behind oscillating two dimensional cascades having an infinite number of blades. The calculation procedure is greatly simplified by concentrating bound vortices on the blades other than the reference blade to their quarter chord points and also by assuming that the downwash on the reference blade induced by these concentrated vortices can be represented by its value at the three quarter chord point. It is disclosed that, both in the circulation and the downwash, limiting values when the frequency tends to zero are not equal to steady values and that the downwash becomes substantially a traveling wave of constant amplitude only after a short distance frome the cascade. Circulations and downwashes are calculated for various reduced frequencies and blade spacings. The results show that, both in circulations and downwashes, variations in the real parts against the reduced frequency are small and those in the imaginary parts are approximately linear. Effects of the blade spacing are large in the circulation but are small in the downwash. A ratio of the downwash on a center plane of two adjacent blades to that on a blade plane becomes unity when the frequency or the spacing tends to zero, and decreases when a product of the reduced frequency and the spacing increases. | |||||||||
| ISSN | ||||||||||
| 収録物識別子タイプ | ISSN | |||||||||
| 収録物識別子 | 0389-4010 | |||||||||
| 資料番号 | ||||||||||
| 内容記述タイプ | Other | |||||||||
| 内容記述 | 資料番号: NALTR0373000 | |||||||||
| レポート番号 | ||||||||||
| 内容記述タイプ | Other | |||||||||
| 内容記述 | レポート番号: NAL TR-373 | |||||||||
