{"created":"2023-06-20T15:15:08.983631+00:00","id":45204,"links":{},"metadata":{"_buckets":{"deposit":"68baeeeb-4570-4b74-a3da-7967036c0acc"},"_deposit":{"created_by":1,"id":"45204","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"45204"},"status":"published"},"_oai":{"id":"oai:jaxa.repo.nii.ac.jp:00045204","sets":["1887:1893","1896:1898:1913:1917"]},"author_link":["473452","473451","473454","473453"],"item_3_alternative_title_1":{"attribute_name":"その他のタイトル","attribute_value_mlt":[{"subitem_alternative_title":"風車の支柱と翼との干渉騒音"}]},"item_3_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"1987-10","bibliographicIssueDateType":"Issued"},"bibliographicPageStart":"8","bibliographicVolumeNumber":"945","bibliographic_titles":[{"bibliographic_title":"航空宇宙技術研究所報告"},{"bibliographic_title":"Technical Report of National Aerospace Laboratory TR-945","bibliographic_titleLang":"en"}]}]},"item_3_description_17":{"attribute_name":"抄録（英）","attribute_value_mlt":[{"subitem_description":"A scale model of a 1.5m dia. two-bladed windturbine was used in an anechoic chamber that provided a free-stream velocity of 8m/s. The blades used were a 1.5/8 scale model of a test machine for a local energy utilization project promoted by the Science and Technology Agency. The height of the tower from the ground level was 1.8m. The acoustic measurements were made in a circle of 1.6m downstream from the machine at the height of the windmill centerline. The noise level of the on-axis spectra was about 15dB larger than that of the offaxis. This is a result of the dipole nature of the acoustic impulse. The Wortmann airfoil (FX 77-W series) was employed for the blade profiles and the Reynolds number was 10(exp 5), based on the tip chord length. The experiment revealed that the sound intensity at each harmonic was not proportional to the axial and radial extents of the wake. The elliptic slender configuration was the quietest, while the square configuration was the loudest. From a practical point of view, it is suggested that the circular section is most suitable for the tower leg.","subitem_description_type":"Other"}]},"item_3_description_32":{"attribute_name":"資料番号","attribute_value_mlt":[{"subitem_description":"資料番号: NALTR0945000","subitem_description_type":"Other"}]},"item_3_description_33":{"attribute_name":"レポート番号","attribute_value_mlt":[{"subitem_description":"レポート番号: NAL TR-945","subitem_description_type":"Other"}]},"item_3_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"航空宇宙技術研究所"}]},"item_3_publisher_9":{"attribute_name":"出版者（英）","attribute_value_mlt":[{"subitem_publisher":"National Aerospace Laboratory(NAL)"}]},"item_3_source_id_21":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"0389-4010","subitem_source_identifier_type":"ISSN"}]},"item_3_text_6":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"航空宇宙技術研究所航空機公害研究グループ"},{"subitem_text_value":"航空宇宙技術研究所航空機公害研究グループ"}]},"item_3_text_7":{"attribute_name":"著者所属（英）","attribute_value_mlt":[{"subitem_text_language":"en","subitem_text_value":"Noise and Emission Research Group, National Aerospace Laboratory(NAL)"},{"subitem_text_language":"en","subitem_text_value":"Noise and Emission Research Group, National Aerospace Laboratory(NAL)"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"西脇, 英夫"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"武田, 克巳"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"NISHIWAKI, Hideo","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"TAKEDA, Katsumi","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":"2020-01-29"}],"displaytype":"detail","filename":"naltr00945.pdf","filesize":[{"value":"480.1 kB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"naltr00945.pdf","url":"https://jaxa.repo.nii.ac.jp/record/45204/files/naltr00945.pdf"},"version_id":"7fe8a1bb-99b6-4e36-84f2-61492ce754f5"}]},"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":"technical report","resourceuri":"http://purl.org/coar/resource_type/c_18gh"}]},"item_title":"TOWER WAKE/BLADE INTERACTION NOISE OF A WIND TURBINE","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"TOWER WAKE/BLADE INTERACTION NOISE OF A WIND TURBINE","subitem_title_language":"en"}]},"item_type_id":"3","owner":"1","path":["1893","1917"],"pubdate":{"attribute_name":"公開日","attribute_value":"2015-03-26"},"publish_date":"2015-03-26","publish_status":"0","recid":"45204","relation_version_is_last":true,"title":["TOWER WAKE/BLADE INTERACTION NOISE OF A WIND TURBINE"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-06-20T21:43:26.500770+00:00"}