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ノズル壁面からの気体噴射による超音速噴流の低騒音化
http://hdl.handle.net/10087/2674
http://hdl.handle.net/10087/26741c7259f8-9248-4993-bcde-b448abe3bc31
名前 / ファイル | ライセンス | アクション |
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B71_1798.pdf (1.0 MB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2008-01-24 | |||||
タイトル | ||||||
タイトル | ノズル壁面からの気体噴射による超音速噴流の低騒音化 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Noise Reduction of a Supersonic Jet Using Gas Injection from a Nozzle Wall | |||||
言語 | ||||||
言語 | jpn | |||||
その他のタイトル | ||||||
その他のタイトル | Noise Reduction of a Supersonic Jet Using Gas Injection from a Nozzle Wall | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Supersonic Jet | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Screech | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Noise Reduction | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Gas Injection | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Total Pressure Loss | |||||
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 | journal article | |||||
著者 |
荒木, 幹也
× 荒木, 幹也× 桑原, 孝輔× 新井, 正明× 石間, 経章× 志賀, 聖一× 小保方, 富夫 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Effects of gas injection from a nozzle wall on screech reduction of a supersonic under expanded jet are investigated experimentally. From a converging round nozzle, air is injected into the atmosphere (Main jet) at a pressure ratio of 2.25 (M=1.14). The exit diameter of the main jet nozzle is 8.0mm. From small nozzles mounted in the main jet nozzle wall, air is injected in the normal direction to the main jet (Secondary jet). The exit diameter of the secondary nozzles is 1.0mm. The number of the secondary nozzles is selected to be 2 or 4, and the mass flow rate of each secondary jet is set at 2.0% or 4.0% of the main jet. With the secondary jets, the screech SPL is reduced by 23 dB at the maximum, and the frequency profile of the broadband noise is also influenced. And with the secondary jets, the total pressure of the main jet is slightly decreased with the increase in the total mass flow rate of the secondary jets. Consequently, it is shown that the gas injection method is effective in screech reduction with a small loss in the total pressure. | |||||
書誌情報 |
日本機械学會論文集. B編 巻 71, 号 707, p. 1798-1805, 発行日 2005-07-25 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0387-5016 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AN00187441 | |||||
権利 | ||||||
権利情報 | 日本機械学会 | |||||
権利 | ||||||
権利情報 | 本文データは学協会の許諾に基づきCiNiiから複製したものである | |||||
フォーマット | ||||||
内容記述タイプ | Other | |||||
内容記述 | application/pdf | |||||
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 | |||||
出版者 | ||||||
出版者 | 日本機械学会 | |||||
資源タイプ | ||||||
内容記述タイプ | Other | |||||
内容記述 | Journal Article | |||||
異版である | ||||||
関連タイプ | isVersionOf | |||||
識別子タイプ | URI | |||||
関連識別子 | http://ci.nii.ac.jp/naid/110005051601/ | |||||
更新日 | ||||||
日付 | 2017-03-27 | |||||
日付タイプ | Created |