{"created":"2023-06-20T15:17:10.388316+00:00","id":47323,"links":{},"metadata":{"_buckets":{"deposit":"62d49fca-04c4-42c9-8162-73640fa3d8ad"},"_deposit":{"created_by":1,"id":"47323","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"47323"},"status":"published"},"_oai":{"id":"oai:jaxa.repo.nii.ac.jp:00047323","sets":["1398:1530:2108","1543:1874:2109","1887:1891","9:789:2068:2106"]},"author_link":["532114","532115","532117","532116"],"item_5_alternative_title_2":{"attribute_name":"その他のタイトル（英）","attribute_value_mlt":[{"subitem_alternative_title":"Evaluation of Sound Absorption Coefficient by Numerical Analysis of an Acoustic Liner with Glazing Flow"}]},"item_5_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2021-02-08","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"18","bibliographicPageStart":"11","bibliographicVolumeNumber":"JAXA-SP-20-008","bibliographic_titles":[{"bibliographic_title":"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"},{"bibliographic_title":"JAXA Special Publication: Proceedings of Fluid Dynamics Conference / Aerospace Numerical Simulation Symposium 2020 Online","bibliographic_titleLang":"en"}]}]},"item_5_description_14":{"attribute_name":"会議概要（会議名, 開催地, 会期, 主催者等）","attribute_value_mlt":[{"subitem_description":"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)","subitem_description_type":"Other"}]},"item_5_description_15":{"attribute_name":"会議概要（会議名, 開催地, 会期, 主催者等）（英）","attribute_value_mlt":[{"subitem_description":"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)","subitem_description_type":"Other"}]},"item_5_description_17":{"attribute_name":"抄録（英）","attribute_value_mlt":[{"subitem_description":"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.","subitem_description_type":"Other"}]},"item_5_description_18":{"attribute_name":"内容記述","attribute_value_mlt":[{"subitem_description":"形態: カラー図版あり","subitem_description_type":"Other"}]},"item_5_description_19":{"attribute_name":"内容記述（英）","attribute_value_mlt":[{"subitem_description":"Physical characteristics: Original contains color illustrations","subitem_description_type":"Other"}]},"item_5_description_32":{"attribute_name":"資料番号","attribute_value_mlt":[{"subitem_description":"資料番号: AA2030013002","subitem_description_type":"Other"}]},"item_5_description_33":{"attribute_name":"レポート番号","attribute_value_mlt":[{"subitem_description":"レポート番号: JAXA-SP-20-008","subitem_description_type":"Other"}]},"item_5_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"宇宙航空研究開発機構(JAXA)"}]},"item_5_publisher_9":{"attribute_name":"出版者（英）","attribute_value_mlt":[{"subitem_publisher":"Japan Aerospace Exploration Agency (JAXA)"}]},"item_5_source_id_22":{"attribute_name":"ISSNONLINE","attribute_value_mlt":[{"subitem_source_identifier":"2433-2232","subitem_source_identifier_type":"ISSN"}]},"item_5_text_6":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"宇宙航空研究開発機構航空技術部門(JAXA)"},{"subitem_text_value":"宇宙航空研究開発機構航空技術部門(JAXA)"}]},"item_5_text_7":{"attribute_name":"著者所属（英）","attribute_value_mlt":[{"subitem_text_language":"en","subitem_text_value":"Aeronautical Technology Directorate, Japan Aerospace Exploration Agency (JAXA)"},{"subitem_text_language":"en","subitem_text_value":"Aeronautical Technology Directorate, Japan Aerospace Exploration Agency (JAXA)"}]},"item_5_version_type_30":{"attribute_name":"著者版フラグ","attribute_value_mlt":[{"subitem_version_resource":"http://purl.org/coar/version/c_970fb48d4fbd8a85","subitem_version_type":"VoR"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"榎本, 俊治"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"石井, 達哉"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"ENOMOTO, Shunji","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"ISHII, Tatsuya","creatorNameLang":"en"}],"nameIdentifiers":[{}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2021-02-08"}],"displaytype":"detail","filename":"AA2030013002.pdf","filesize":[{"value":"1.8 MB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"AA2030013002.pdf","url":"https://jaxa.repo.nii.ac.jp/record/47323/files/AA2030013002.pdf"},"version_id":"a813d609-1aae-47f7-b69a-7877150024cc"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"conference paper","resourceuri":"http://purl.org/coar/resource_type/c_5794"}]},"item_title":"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","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"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"}]},"item_type_id":"5","owner":"1","path":["1891","2106","2108","2109"],"pubdate":{"attribute_name":"公開日","attribute_value":"2021-02-08"},"publish_date":"2021-02-08","publish_status":"0","recid":"47323","relation_version_is_last":true,"title":["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"],"weko_creator_id":"1","weko_shared_id":1},"updated":"2023-06-20T19:41:18.327960+00:00"}