{"created":"2023-06-20T15:08:03.884139+00:00","id":3771,"links":{},"metadata":{"_buckets":{"deposit":"231d08c3-b217-48ab-841d-172041c91215"},"_deposit":{"created_by":3,"id":"3771","owners":[3],"pid":{"revision_id":0,"type":"depid","value":"3771"},"status":"published"},"_oai":{"id":"oai:ynu.repo.nii.ac.jp:00003771","sets":["495:496"]},"author_link":["181","16323","16324","16325"],"item_3_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"1999","bibliographicIssueDateType":"Issued"},"bibliographicVolumeNumber":"2","bibliographic_titles":[{"bibliographic_title":"Hydraulic machinery and cavitation : proceedings of the XIX IAHR Symposium : section on Hydraulic Machinery and Cavitation 9-11 September 1998, Singapore"}]}]},"item_3_description_19":{"attribute_name":"フォーマット","attribute_value_mlt":[{"subitem_description":"application/pdf","subitem_description_type":"Other"}]},"item_3_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"Pump efficiency drops rapidly with a decrease in specific speed Ns in the very low Ns range. In order to improve a pump efficiency and to establish the optimum design method of a very low specific speed pump in the range of Ns<100 [rpm,m3/min, m], eight kinds of centrifugal impellers were tested in the same volute casing designed at Ns -60. Three impellers have the same outlet angle of β2=22.5° with a different Ns ranging from 80 to 200, and the other five have radial vanes(β2=90°) from Ns=50 to 80.The results showed that the conventional design is not suitable for a very low Ns Pump and that the maximum efficiency is largely influenced by the volute design parameters, such as a volute tongue, a olute width and a gap between a impeller exit and a volute tongue, while the maximum efficiency differs little by the design of impeller. The BEP of a very low Ns pump agrees with the designed discharge of a volute and is far from that of an impeller.","subitem_description_type":"Abstract"}]},"item_3_full_name_2":{"attribute_name":"著者(ヨミ)","attribute_value_mlt":[{"nameIdentifiers":[{},{}],"names":[{"name":"クロカワ, ジュンイチ"}]}]},"item_3_full_name_3":{"attribute_name":"著者別名","attribute_value_mlt":[{"nameIdentifiers":[{"nameIdentifier":"181","nameIdentifierScheme":"WEKO"},{"nameIdentifier":"40017976","nameIdentifierScheme":"e-Rad","nameIdentifierURI":"https://kaken.nii.ac.jp/ja/search/?qm=40017976"}],"names":[{"name":"黒川, 淳一"}]}]},"item_3_publisher_37":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"International Association of Hydraulic Research (IAHR)"}]},"item_3_relation_12":{"attribute_name":"ISBN","attribute_value_mlt":[{"subitem_relation_type_id":{"subitem_relation_type_id_text":"9810239629","subitem_relation_type_select":"ISBN"}}]},"item_3_relation_13":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_relation_type_id":{"subitem_relation_type_id_text":"BA45979019","subitem_relation_type_select":"NCID"}}]},"item_3_text_4":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"Professor. Dept. of Mechanical Engineering, Yokohama National University, 156 Tokiwadai, Hodogaya-ku, Yokohama, 240 Japan"},{"subitem_text_value":"Graduate Student, Dept. of Mechanical Engineering, Yohohama Natronal University, 156 Tokiwadai, Hodogaya-ku, Yokohama, 240 Japan"},{"subitem_text_value":"Associate Professor, Dept. of Mechanical Engineering Yokohama National University, 156 Tokiwadai, Hodogaya-ku, Yokohama, 240 Japan"},{"subitem_text_value":"Assistant, Dept. of Mechanical Engineering, Yokohama National University, 156 Tokiwadai, Hodogaya-ku. Yokohama, 240 Japan"}]},"item_3_version_type_20":{"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":"Kurokawa, Junichi"}],"nameIdentifiers":[{"nameIdentifier":"181","nameIdentifierScheme":"WEKO"},{"nameIdentifier":"40017976","nameIdentifierScheme":"e-Rad","nameIdentifierURI":"https://kaken.nii.ac.jp/ja/search/?qm=40017976"}]},{"creatorNames":[{"creatorName":"Matsumoto, Kazunari"}],"nameIdentifiers":[{"nameIdentifier":"16323","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Matsui, Jun"}],"nameIdentifiers":[{"nameIdentifier":"16324","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Kitahora, Takaya"}],"nameIdentifiers":[{"nameIdentifier":"16325","nameIdentifierScheme":"WEKO"}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2016-09-16"}],"displaytype":"detail","filename":"B-101.pdf","filesize":[{"value":"612.6 kB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"B-101.pdf","url":"https://ynu.repo.nii.ac.jp/record/3771/files/B-101.pdf"},"version_id":"66ecec21-d310-4aae-b059-87990b3d5ccd"}]},"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":"conference paper","resourceuri":"http://purl.org/coar/resource_type/c_5794"}]},"item_title":"Performances of centrifugal pumps of very low specific speed","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Performances of centrifugal pumps of very low specific speed"}]},"item_type_id":"3","owner":"3","path":["496"],"pubdate":{"attribute_name":"公開日","attribute_value":"2008-09-17"},"publish_date":"2008-09-17","publish_status":"0","recid":"3771","relation_version_is_last":true,"title":["Performances of centrifugal pumps of very low specific speed"],"weko_creator_id":"3","weko_shared_id":-1},"updated":"2023-06-20T21:41:03.673095+00:00"}