{"created":"2023-06-20T14:36:06.284708+00:00","id":2404,"links":{},"metadata":{"_buckets":{"deposit":"52eeab03-3e8f-401b-bce0-d6d42c3fd222"},"_deposit":{"created_by":1,"id":"2404","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"2404"},"status":"published"},"_oai":{"id":"oai:jaxa.repo.nii.ac.jp:00002404","sets":["1887:1893","9:10:368:379"]},"author_link":["6101","6100"],"item_3_alternative_title_1":{"attribute_name":"その他のタイトル","attribute_value_mlt":[{"subitem_alternative_title":"速度勾配中の最適なプロペラ及び風車の設計法"}]},"item_3_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2004-03-25","bibliographicIssueDateType":"Issued"},"bibliographicVolumeNumber":"JAXA-RR-03-016E","bibliographic_titles":[{"bibliographic_title":"宇宙航空研究開発機構研究開発報告"},{"bibliographic_title":"JAXA Research and Development Report","bibliographic_titleLang":"en"}]}]},"item_3_description_17":{"attribute_name":"抄録（英）","attribute_value_mlt":[{"subitem_description":"A method for optimizing a propeller or windmill in a wind gradient has been developed, based on the lifting-line theory. This method takes the effect of trailing vortices and shed vortices into consideration, and consists of two fundamental major concepts. The first is the description of the problem by quadratic functions. The second concept is the reduction of the number of unknown variables using the periodical characteristics of the solution. In the first concept, optimum propeller design is converted into an optimization problem solved by a simple procedure. Using the latter concept, the number of design operations is reduced to a number executed within practical computation time. The validity and accuracy of the solution obtained by this method are carefully evaluated and proven using Prandtl's propeller theory. The solution shows that the propulsive efficiency of the optimum propeller with a wind gradient is larger than that without a wind gradient. The solution also shows that the optimum propeller in a wind gradient generates thrust even without an internal power supply. The windmill for a windmill ship is also designed, and the advantage of a windmill in a wind gradient shown.","subitem_description_type":"Other"}]},"item_3_description_18":{"attribute_name":"内容記述","attribute_value_mlt":[{"subitem_description":"ISSNの誤記: 1349-1148","subitem_description_type":"Other"}]},"item_3_description_19":{"attribute_name":"内容記述（英）","attribute_value_mlt":[{"subitem_description":"Incorrect ISSN: 1349-1148","subitem_description_type":"Other"}]},"item_3_description_32":{"attribute_name":"資料番号","attribute_value_mlt":[{"subitem_description":"資料番号: AA0047408000","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: JAXA-RR-03-016E","subitem_description_type":"Other"}]},"item_3_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"宇宙航空研究開発機構"}]},"item_3_publisher_9":{"attribute_name":"出版者（英）","attribute_value_mlt":[{"subitem_publisher":"Japan Aerospace Exploration Agency (JAXA)"}]},"item_3_source_id_21":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"1349-1113","subitem_source_identifier_type":"ISSN"}]},"item_3_source_id_24":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AA1192675X","subitem_source_identifier_type":"NCID"}]},"item_3_text_6":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"宇宙航空研究開発機構 総合技術研究本部"}]},"item_3_text_7":{"attribute_name":"著者所属（英）","attribute_value_mlt":[{"subitem_text_language":"en","subitem_text_value":"Japan Aerospace Exploration Agency Institute of Space Technology and Aeronautics"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"原田, 正志"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Harada, Masashi","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":"2020-01-15"}],"displaytype":"detail","filename":"47408000.pdf","filesize":[{"value":"8.4 MB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"47408000.pdf","url":"https://jaxa.repo.nii.ac.jp/record/2404/files/47408000.pdf"},"version_id":"06d6c958-5ae7-440c-8840-f7161fb15153"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"風力利用","subitem_subject_scheme":"Other"},{"subitem_subject":"風車","subitem_subject_scheme":"Other"},{"subitem_subject":"プロペラ","subitem_subject_scheme":"Other"},{"subitem_subject":"設計最適化","subitem_subject_scheme":"Other"},{"subitem_subject":"風速勾配","subitem_subject_scheme":"Other"},{"subitem_subject":"運動量理論","subitem_subject_scheme":"Other"},{"subitem_subject":"均一流","subitem_subject_scheme":"Other"},{"subitem_subject":"数値解析","subitem_subject_scheme":"Other"},{"subitem_subject":"windpower utilization","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"windmill","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"propeller","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"design optimization","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"wind velocity gradient","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"momentum theory","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"uniform flow","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"numerical analysis","subitem_subject_language":"en","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":"technical report","resourceuri":"http://purl.org/coar/resource_type/c_18gh"}]},"item_title":"Optimum propeller or windmill design in a wind gradient","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Optimum propeller or windmill design in a wind gradient","subitem_title_language":"en"}]},"item_type_id":"3","owner":"1","path":["379","1893"],"pubdate":{"attribute_name":"公開日","attribute_value":"2015-03-26"},"publish_date":"2015-03-26","publish_status":"0","recid":"2404","relation_version_is_last":true,"title":["Optimum propeller or windmill design in a wind gradient"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-06-21T09:23:09.648195+00:00"}