{"created":"2023-06-20T15:14:50.884240+00:00","id":44852,"links":{},"metadata":{"_buckets":{"deposit":"46cef7c7-b3b2-438f-931c-ec36ba8d21c3"},"_deposit":{"created_by":1,"id":"44852","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"44852"},"status":"published"},"_oai":{"id":"oai:jaxa.repo.nii.ac.jp:00044852","sets":["1887:1893","1896:1898:1913:1917"]},"author_link":["471606","471604","471605","471601","471602","471603"],"item_3_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"1980-05","bibliographicIssueDateType":"Issued"},"bibliographicPageStart":"12","bibliographicVolumeNumber":"598T","bibliographic_titles":[{"bibliographic_title":"航空宇宙技術研究所報告"},{"bibliographic_title":"Technical Report of National Aerospace Laboratory TR-598T","bibliographic_titleLang":"en"}]}]},"item_3_description_16":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"キャビテーティングインデューサの不安定性は液体ロケットのポゴの発生に関係しているものと考えられている。本報告はインデューサの不安定性の可視観察と圧力振動の実験結果を示したものである。主にローテーティングキャビテーションとキャビテーションに誘発された低周波振動の差異を調べた。キャビティ領域が一定の速度で旋回するローテーティングキャビテーションとは対称的に低周波振動におけるキャビティ領域はほぼ同位相で振動した。このことは低周波振動がシステム振動であることを裏づけている。キャビティ領域が低周波で振動するローテーティングキャビテーションや極端な例としての非対称キャビテーションを観察することができた。このほかインデューサ入口圧力とキャビテーションの形式を対比して示した。","subitem_description_type":"Abstract"}]},"item_3_description_17":{"attribute_name":"抄録（英）","attribute_value_mlt":[{"subitem_description":"This paper presents the results of experiments on the instability of a cavitating inducer, which is considered to be closely related with the POGO phenomena in liquid propellant rockets. The present experiment employed a high speed camera for visual observations. The dynamic pressure of both the inducer upstream and downstream was also measured. The difference between rotating cavitation and cavitation induced low cycle oscillations was examined. The cavities moved around the periphery of the inducer inlet with a constant rotating speed in rotating cavitation. All cavities oscillated almost in unison in the cavitation induced low cycle oscillation. This suggests that the low cycle oscillation is a system oscillation. The high speed movie films showed the rotating cavitation process and a comparatively high rotating cavitation zone velocity. Rotating cavitation, with very low cycle cavity oscillation for each blade and steady asymmetric cavitation was also observed during the testing. In addition, the present paper illustrates the effect of inducer inlet pressure on the cavity formation.","subitem_description_type":"Other"}]},"item_3_description_32":{"attribute_name":"資料番号","attribute_value_mlt":[{"subitem_description":"資料番号: NALTR0598T000","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-598T","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角田支所"},{"subitem_text_value":"航空宇宙技術研究所角田支所"},{"subitem_text_value":"航空宇宙技術研究所角田支所"}]},"item_3_text_7":{"attribute_name":"著者所属（英）","attribute_value_mlt":[{"subitem_text_language":"en","subitem_text_value":"Kakuda Branch Office, National Aerospace Laboratory(NAL)"},{"subitem_text_language":"en","subitem_text_value":"Kakuda Branch Office, National Aerospace Laboratory(NAL)"},{"subitem_text_language":"en","subitem_text_value":"Kakuda Branch Office, National Aerospace Laboratory(NAL)"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"上条, 謙二郎"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"志村, 隆"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"KAMIJO, Kenjiro","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"SHIMURA, Takashi","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"渡辺, 光男","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"WATANABE, Mitsuo","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":"naltr0598t.pdf","filesize":[{"value":"2.6 MB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"naltr0598t.pdf","url":"https://jaxa.repo.nii.ac.jp/record/44852/files/naltr0598t.pdf"},"version_id":"de734dec-5060-4adc-85df-9c8153691eca"}]},"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":"A Visual Observation of Cavitating Inducer Instability","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"A Visual Observation of Cavitating Inducer Instability","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":"44852","relation_version_is_last":true,"title":["A Visual Observation of Cavitating Inducer Instability"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-06-20T21:49:44.374237+00:00"}