{"created":"2023-05-15T16:37:41.974798+00:00","id":11106,"links":{},"metadata":{"_buckets":{"deposit":"f035b46a-8bf4-482a-9e7c-c95ce0df3daf"},"_deposit":{"created_by":2,"id":"11106","owners":[2],"pid":{"revision_id":0,"type":"depid","value":"11106"},"status":"published"},"_oai":{"id":"oai:nagasaki-u.repo.nii.ac.jp:00011106","sets":["14:15:16:864"]},"author_link":["43257","43256"],"item_3_alternative_title_19":{"attribute_name":"その他のタイトル","attribute_value_mlt":[{"subitem_alternative_title":"プロペラファンの広帯域騒音に関する実験的研究"}]},"item_3_biblio_info_6":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2012-01","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"78","bibliographicPageEnd":"7","bibliographicPageStart":"1","bibliographicVolumeNumber":"42","bibliographic_titles":[{"bibliographic_title":"長崎大学大学院工学研究科研究報告"},{"bibliographic_title":"Reports of Graduate School of Engineering, Nagasaki University","bibliographic_titleLang":"en"}]}]},"item_3_description_4":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"The present research is a preliminary attempt towards the prediction of the broadband noise from the flow features, compatible with industrial constraints. In the case of low-solidity impeller, the wake rapidly expands in a wide outer part of the blades under the influence of the separation forced by the tip vortex. The broadband noise level in the low-frequency domain became large because the wake vortices with large scale in the low frequency domain were shed from the blade. Since the relative flow of the high-solidity impeller at the maximum efficiency point remains attached over the blades, the strength of vortex-shedding in the wake is reduced. Therefore the broadband noise at the maximum efficiency point is substantially decreased. At the off-design point in low flow rate, the number of blades has limited influence on the flow regime in the wake because separation likely occurs from the leading edge. In this case, the broadband noise increases with the number of blades.","subitem_description_type":"Abstract"}]},"item_3_description_64":{"attribute_name":"引用","attribute_value_mlt":[{"subitem_description":"長崎大学大学院工学研究科研究報告, 42(78), pp.1-7; 2012","subitem_description_type":"Other"}]},"item_3_full_name_3":{"attribute_name":"著者別名","attribute_value_mlt":[{"nameIdentifiers":[{"nameIdentifier":"43257","nameIdentifierScheme":"WEKO"}],"names":[{"name":"佐々木, 壮一"}]}]},"item_3_publisher_33":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"長崎大学大学院工学研究科"}]},"item_3_source_id_10":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AA12601998","subitem_source_identifier_type":"NCID"}]},"item_3_source_id_7":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"18805574","subitem_source_identifier_type":"ISSN"}]},"item_3_text_62":{"attribute_name":"sortkey","attribute_value_mlt":[{"subitem_text_value":"1"}]},"item_3_text_63":{"attribute_name":"出版者別言語","attribute_value_mlt":[{"subitem_text_value":"Graduate School of Engineering, Nagasaki University"}]},"item_3_version_type_16":{"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":"Sasaki, Soichi"}],"nameIdentifiers":[{}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2020-12-22"}],"displaytype":"detail","filename":"42_78_01.pdf","filesize":[{"value":"1.6 MB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"42_78_01.pdf","url":"https://nagasaki-u.repo.nii.ac.jp/record/11106/files/42_78_01.pdf"},"version_id":"9f068e07-fdcd-4556-a1e5-01ca5fea7993"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"Turbo Machinery","subitem_subject_scheme":"Other"},{"subitem_subject":"Aerodynamic Noise","subitem_subject_scheme":"Other"},{"subitem_subject":"Wake","subitem_subject_scheme":"Other"},{"subitem_subject":"Separation","subitem_subject_scheme":"Other"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"eng"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"departmental bulletin paper","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"An Experimental Study on Broadband Noise of a Propeller Fan","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"An Experimental Study on Broadband Noise of a Propeller Fan"}]},"item_type_id":"3","owner":"2","path":["864"],"pubdate":{"attribute_name":"公開日","attribute_value":"2012-01-30"},"publish_date":"2012-01-30","publish_status":"0","recid":"11106","relation_version_is_last":true,"title":["An Experimental Study on Broadband Noise of a Propeller Fan"],"weko_creator_id":"2","weko_shared_id":-1},"updated":"2023-05-16T01:19:40.202441+00:00"}