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グレージング流れを伴う吸音ライナの数値解析による吸音率の評価
https://jaxa.repo.nii.ac.jp/records/47323
https://jaxa.repo.nii.ac.jp/records/473233c186bf7-fbb9-4322-b846-b984bda33f01
名前 / ファイル | ライセンス | アクション |
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AA2030013002.pdf (1.8 MB)
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Item type | 会議発表論文 / Conference Paper(1) | |||||
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公開日 | 2021-02-08 | |||||
タイトル | ||||||
タイトル | グレージング流れを伴う吸音ライナの数値解析による吸音率の評価 | |||||
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_5794 | |||||
資源タイプ | conference paper | |||||
その他のタイトル(英) | ||||||
その他のタイトル | Evaluation of Sound Absorption Coefficient by Numerical Analysis of an Acoustic Liner with Glazing Flow | |||||
著者 |
榎本, 俊治
× 榎本, 俊治× 石井, 達哉× ENOMOTO, Shunji× ISHII, Tatsuya |
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著者所属 | ||||||
宇宙航空研究開発機構航空技術部門(JAXA) | ||||||
著者所属 | ||||||
宇宙航空研究開発機構航空技術部門(JAXA) | ||||||
著者所属(英) | ||||||
en | ||||||
Aeronautical Technology Directorate, Japan Aerospace Exploration Agency (JAXA) | ||||||
著者所属(英) | ||||||
en | ||||||
Aeronautical Technology Directorate, Japan Aerospace Exploration Agency (JAXA) | ||||||
出版者 | ||||||
出版者 | 宇宙航空研究開発機構(JAXA) | |||||
出版者(英) | ||||||
出版者 | Japan Aerospace Exploration Agency (JAXA) | |||||
書誌情報 |
宇宙航空研究開発機構特別資料: 流体力学講演会/航空宇宙数値シミュレーション技術シンポジウム2020オンライン論文集 en : JAXA Special Publication: Proceedings of Fluid Dynamics Conference / Aerospace Numerical Simulation Symposium 2020 Online 巻 JAXA-SP-20-008, p. 11-18, 発行日 2021-02-08 |
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会議概要(会議名, 開催地, 会期, 主催者等) | ||||||
内容記述タイプ | Other | |||||
内容記述 | 流体力学講演会/航空宇宙数値シミュレーション技術シンポジウム2020オンライン (2020年9月28日-30日. 日本航空宇宙学会 : 宇宙航空研究開発機構(JAXA)オンライン会議) | |||||
会議概要(会議名, 開催地, 会期, 主催者等)(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | Fluid Dynamics Conference / Aerospace Numerical Simulation Symposium 2020 Online (September 28-30, 2020. The Japan Society for Aeronautical and Space Sciences : Japan Aerospace Exploration Agency (JAXA), Online meeting) | |||||
抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | In order to investigate the sound absorption phenomenon in sound-absorbing liners used to reduce the noise of aero-jet engines, we simulated the sound absorption liner with glazing flow by the numerical analysis using the sponge region method, and methods to calculate the required sound absorption coefficient was investigated. We compared the conventional method based on sound pressure, the method of calculating the difference in sound power between the upstream and downstream sections using sound intensity, and the method of directly calculating the sound power sucked into the hole. In the absence of glazing flow, all the methods gave similar results. In the case with the glazing flow, it was found that the sound pressure method and the method based on the sound power of the upstream and downstream cross-sections, i.e., the method to acquire the data at a place not affected by the vortex, were more accurate for evaluating the sound absorption coefficient. | |||||
内容記述 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 形態: カラー図版あり | |||||
内容記述(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | Physical characteristics: Original contains color illustrations | |||||
ISSNONLINE | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 2433-2232 | |||||
著者版フラグ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
資料番号 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 資料番号: AA2030013002 | |||||
レポート番号 | ||||||
内容記述タイプ | Other | |||||
内容記述 | レポート番号: JAXA-SP-20-008 |