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Acoustic Radiation of Inlet-Turbulence/Rotor Interaction in Free and Ducted Spaces
https://jaxa.repo.nii.ac.jp/records/34567
https://jaxa.repo.nii.ac.jp/records/34567c8ddc490-f135-4498-8861-ebf4c42c9ce1
名前 / ファイル | ライセンス | アクション |
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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 | ||||||
言語 | en | |||||
タイトル | Acoustic Radiation of Inlet-Turbulence/Rotor Interaction in Free and Ducted Spaces | |||||
言語 | ||||||
言語 | eng | |||||
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 | |||||
著者 |
KOTAKE, Susumu
× KOTAKE, Susumu |
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出版者 | ||||||
出版者 | 東京大学宇宙航空研究所 | |||||
出版者(英) | ||||||
出版者 | Institute of Space and Aeronautical Science,University of Tokyo | |||||
書誌情報 |
en : ISAS report/Institute of Space and Aeronautical Science,University of Tokyo 巻 46, 号 1, p. 1-44, 発行日 1981-01 |
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抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | The far-field acoustic radiation caused by the inlet-turbulence/fan-rotor interaction in free and ducted spaces is studied theoretically. Incompressible, two-dimensional unsteady thin-airfoil theory is combined with an acoustic radiation model of concentrated point dipoles. The effect of duct termination is neglected. The far-field power spectral density of the associated sound is largely affected by the nature of the incoming turbulence. The effects of the turbulence scale, rotor speed, duct length and the mean flow upon the frequency spectrum and directivity are investigated in both cases of free-space and ducted-space in which "cut-off" and "cut-on" modes have coupled contributions to the radiation field. | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0372-1418 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA00675986 | |||||
資料番号 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 資料番号: SA2401420000 |