{"created":"2023-06-20T14:54:17.843830+00:00","id":22609,"links":{},"metadata":{"_buckets":{"deposit":"5aeeddb9-ce52-4f27-a5ce-35e4c639120c"},"_deposit":{"created_by":1,"id":"22609","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"22609"},"status":"published"},"_oai":{"id":"oai:jaxa.repo.nii.ac.jp:00022609","sets":["1887:1888"]},"author_link":["211744","211750","211743","211746","211745","211748","211742","211751","211747","211749"],"item_7_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2015","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"3","bibliographicPageEnd":"3308","bibliographicPageStart":"3299","bibliographicVolumeNumber":"35","bibliographic_titles":[{},{"bibliographic_title":"Proceedings of the Combustion Institute","bibliographic_titleLang":"en"}]}]},"item_7_description_17":{"attribute_name":"抄録（英）","attribute_value_mlt":[{"subitem_description":"In this experimental study, the combined effect of spatial and temporal variations of fuel-air mixture on self-excited combustion instabilities in a gas-turbine model combustor (approximately 60 kW) with a low-swirl injector is reported. Detailed measurements were performed in 4 fuel split (to upstream/downstream injections) conditions while keeping the total equivalence ratio constant. The combustion stability was found to be very sensitive to the fuel split parameter which determined the local equivalence ratio distribution. The majority of the heat-release oscillations was generated in the flame-to-wall impingement region in a manner that satisfied the Rayleigh criterion. The driving force of the instability was considered the periodic interaction between the traveling vortex filled with fresh mixtures and the flame in the near-wall region as reported in the previous study on homogeneous mixture flame. However, the strength of the instability was sensitively modified by the change in the local equivalence ratio distribution. In the strongest oscillation case with inhomogeneous mixture, temporal variations of equivalence ratio exhibited a positive contribution to the thermoacoustic coupling. This suggested that temporal variations in equivalence ratio were enhancing the driving factor of the thermoacoustic instability in addition to the vortex-flame interaction mechanism.","subitem_description_type":"Other"}]},"item_7_description_32":{"attribute_name":"資料番号","attribute_value_mlt":[{"subitem_description":"資料番号: PA1520022000","subitem_description_type":"Other"}]},"item_7_publisher_9":{"attribute_name":"出版者（英）","attribute_value_mlt":[{"subitem_publisher":"Elsevier"}]},"item_7_relation_25":{"attribute_name":"DOI","attribute_value_mlt":[{"subitem_relation_name":[{"subitem_relation_name_text":"info:doi/10.1016/j.proci.2014.07.024"}],"subitem_relation_type_id":{"subitem_relation_type_id_text":"http://dx.doi.org/10.1016/j.proci.2014.07.024","subitem_relation_type_select":"DOI"}}]},"item_7_source_id_21":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"1540-7489","subitem_source_identifier_type":"ISSN"}]},"item_7_source_id_24":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AA11552208","subitem_source_identifier_type":"NCID"}]},"item_7_text_6":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"宇宙航空研究開発機構航空本部(JAXA)"},{"subitem_text_value":"早稲田大学"},{"subitem_text_value":"宇宙航空研究開発機構航空本部(JAXA)"},{"subitem_text_value":"宇宙航空研究開発機構航空本部(JAXA)"},{"subitem_text_value":"早稲田大学"}]},"item_7_text_7":{"attribute_name":"著者所属（英）","attribute_value_mlt":[{"subitem_text_language":"en","subitem_text_value":"Institute of Aeronautical Technology, Japan Aerospace Exploration Agency (JAXA)"},{"subitem_text_language":"en","subitem_text_value":"Waseda University"},{"subitem_text_language":"en","subitem_text_value":"Institute of Aeronautical Technology, Japan Aerospace Exploration Agency (JAXA)"},{"subitem_text_language":"en","subitem_text_value":"Institute of Aeronautical Technology, Japan Aerospace Exploration Agency (JAXA)"},{"subitem_text_language":"en","subitem_text_value":"Waseda University"}]},"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":"立花, 繁"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"金井, 洸太"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"吉田, 征二"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"鈴木, 和雄"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"佐藤, 哲也"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Tachibana, Shigeru","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Kanai, Kota","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Yoshida, Seiji","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Suzuki, Kazuo","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Sato, Tetsuya","creatorNameLang":"en"}],"nameIdentifiers":[{}]}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"Combustion instability","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Low-swirl","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Lean premixed combustion","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Inhomogeneous mixture flame","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":"journal article","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"Combined effect of spatial and temporal variations of equivalence ratio on combustion instability in a low-swirl combustor","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Combined effect of spatial and temporal variations of equivalence ratio on combustion instability in a low-swirl combustor","subitem_title_language":"en"}]},"item_type_id":"7","owner":"1","path":["1888"],"pubdate":{"attribute_name":"公開日","attribute_value":"2015-07-07"},"publish_date":"2015-07-07","publish_status":"0","recid":"22609","relation_version_is_last":true,"title":["Combined effect of spatial and temporal variations of equivalence ratio on combustion instability in a low-swirl combustor"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-06-21T03:18:14.814758+00:00"}