{"created":"2023-06-20T15:07:52.686801+00:00","id":37242,"links":{},"metadata":{"_buckets":{"deposit":"a115cd86-a805-4de9-b461-61cfec785af2"},"_deposit":{"created_by":1,"id":"37242","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"37242"},"status":"published"},"_oai":{"id":"oai:jaxa.repo.nii.ac.jp:00037242","sets":["1887:1891","1896:1898:1913:1915"]},"author_link":["479800","479801"],"item_5_alternative_title_2":{"attribute_name":"その他のタイトル（英）","attribute_value_mlt":[{"subitem_alternative_title":"Choking phenomenon of sonic Venturi nozzles on low Reynolds numbers"}]},"item_5_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"1999-01","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"76","bibliographicPageStart":"75","bibliographicVolumeNumber":"40","bibliographic_titles":[{"bibliographic_title":"航空宇宙技術研究所特別資料"},{"bibliographic_title":"Special Publication of National Aerospace Laboratory","bibliographic_titleLang":"en"}]}]},"item_5_description_14":{"attribute_name":"会議概要（会議名, 開催地, 会期, 主催者等）","attribute_value_mlt":[{"subitem_description":"30 Sep.-1 Oct. 1997 (21st). 26-27 Mar. 1998 (22nd)","subitem_description_type":"Other"}]},"item_5_description_15":{"attribute_name":"会議概要（会議名, 開催地, 会期, 主催者等）（英）","attribute_value_mlt":[{"subitem_description":"30 Sep.-1 Oct. 1997 (21st). 26-27 Mar. 1998 (22nd)","subitem_description_type":"Other"}]},"item_5_description_16":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"ISO型トロイダルスロート音速ベンチュリノズルのチョーキング現象を、4つの気体(窒素、アルゴン、2酸化炭素およびヘリウム)に対して40から30,000のRe(sub th)(理論レイノルズ数)で調べた。実験結果によると、Re(sub th)が5,000付近で臨界背圧比が極大点になり、5,000以上のレイノルズ数域では、背圧比が臨界値を越えた後のディフューザ内部の境界層と衝撃波との干渉により流出係数は複雑な挙動を示すことがわかった。さらに、チョーキング条件を満たす最小レイノルズ数が存在し、そのレイノルズ数での臨界背圧比はわずか0.05であった。","subitem_description_type":"Abstract"}]},"item_5_description_17":{"attribute_name":"抄録（英）","attribute_value_mlt":[{"subitem_description":"Choking phenomenon of ISO type toroidal throat sonic Venturi nozzles were investigated over Re(sub th) from 40 to 30,000 for four gases, N2, Ar, CO2 and He. The experimental results indicate that the critical back pressure ratio has the local maximum point around Re(sub th) = 5,000, and on the Reynolds number range over about 5,000 the discharge coefficients show complicated behaviors due to the interaction between the boundary layer and the shock waves in the diffuser after the back pressure ratio exceeds the critical value. And there is the minimum Reynolds number satisfying the choking condition and the critical back pressure ratio is only 0.05 at that Reynolds number.","subitem_description_type":"Other"}]},"item_5_description_32":{"attribute_name":"資料番号","attribute_value_mlt":[{"subitem_description":"資料番号: AA0001655019","subitem_description_type":"Other"}]},"item_5_description_33":{"attribute_name":"レポート番号","attribute_value_mlt":[{"subitem_description":"レポート番号: NAL SP-40","subitem_description_type":"Other"}]},"item_5_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"航空宇宙技術研究所"}]},"item_5_publisher_9":{"attribute_name":"出版者（英）","attribute_value_mlt":[{"subitem_publisher":"National Aerospace Laboratory (NAL)"}]},"item_5_source_id_21":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"0289-260X","subitem_source_identifier_type":"ISSN"}]},"item_5_source_id_24":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AN10097345","subitem_source_identifier_type":"NCID"}]},"item_5_text_6":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"計量研究所"}]},"item_5_text_7":{"attribute_name":"著者所属（英）","attribute_value_mlt":[{"subitem_text_language":"en","subitem_text_value":"National Research Laboratory of Metrology"}]},"item_access_right":{"attribute_name":"アクセス権","attribute_value_mlt":[{"subitem_access_right":"metadata only access","subitem_access_right_uri":"http://purl.org/coar/access_right/c_14cb"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"中尾, 晨一"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Nakao, Shinichi","creatorNameLang":"en"}],"nameIdentifiers":[{}]}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"音速ベンチュリノズル","subitem_subject_scheme":"Other"},{"subitem_subject":"チョーキング","subitem_subject_scheme":"Other"},{"subitem_subject":"低レイノルズ数","subitem_subject_scheme":"Other"},{"subitem_subject":"流出係数","subitem_subject_scheme":"Other"},{"subitem_subject":"臨界背圧比","subitem_subject_scheme":"Other"},{"subitem_subject":"ディフューザ","subitem_subject_scheme":"Other"},{"subitem_subject":"窒素","subitem_subject_scheme":"Other"},{"subitem_subject":"アルゴン","subitem_subject_scheme":"Other"},{"subitem_subject":"2酸化炭素","subitem_subject_scheme":"Other"},{"subitem_subject":"ヘリウム","subitem_subject_scheme":"Other"},{"subitem_subject":"sonic Venturi nozzle","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"choking","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"low Reynolds number","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"discharge coefficient","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"critical back pressure ratio","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"diffuser","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"nitrogen","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"argon","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"carbon dioxide","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"helium","subitem_subject_language":"en","subitem_subject_scheme":"Other"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"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":"低レイノルズ数域における音速ノズルの臨界現象","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"低レイノルズ数域における音速ノズルの臨界現象"}]},"item_type_id":"5","owner":"1","path":["1891","1915"],"pubdate":{"attribute_name":"公開日","attribute_value":"2015-03-26"},"publish_date":"2015-03-26","publish_status":"0","recid":"37242","relation_version_is_last":true,"title":["低レイノルズ数域における音速ノズルの臨界現象"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-06-20T21:22:55.296605+00:00"}