{"_buckets": {"deposit": "11f654d7-3f78-4e99-a40e-4e63c04bac9c"}, "_deposit": {"created_by": 1, "id": "6144", "owners": [1], "pid": {"revision_id": 0, "type": "depid", "value": "6144"}, "status": "published"}, "_oai": {"id": "oai:jaxa.repo.nii.ac.jp:00006144", "sets": ["1052", "1891"]}, "author_link": ["30758", "30753", "30751", "30755", "30757", "30754", "30756", "30752"], "item_5_alternative_title_2": {"attribute_name": "その他のタイトル（英）", "attribute_value_mlt": [{"subitem_alternative_title": "Numerical study on combustion dynamics in a lean premixed combustor"}]}, "item_5_biblio_info_10": {"attribute_name": "書誌情報", "attribute_value_mlt": [{"bibliographicIssueDates": {"bibliographicIssueDate": "2006-02-28", "bibliographicIssueDateType": "Issued"}, "bibliographicPageEnd": "75", "bibliographicPageStart": "71", "bibliographicVolumeNumber": "JAXA-SP-05-017", "bibliographic_titles": [{"bibliographic_title": "宇宙航空研究開発機構特別資料: 航空宇宙数値シミュレーション技術シンポジウム2005論文集"}, {"bibliographic_title": "JAXA Special Publication: Proceedings of Aerospace Numerical Simulation Symposium 2005", "bibliographic_titleLang": "en"}]}]}, "item_5_description_17": {"attribute_name": "抄録（英）", "attribute_value_mlt": [{"subitem_description": "This study presents numerical simulation results of combustion dynamics in a lean premixed combustor. The combustor is a swirl-stabilized gas turbine model combustor installed at Aerospace Research Center (ARC), Japan Aerospace Exploration Agency (JAXA). The methane/air lean premixed gas is used at the preheated temperature of 700 K, pressure 1 atm and equivalence ratio 0.5. Without control, large pressure oscillations are observed in the combustor mostly with longitudinal acoustic modes. The basic mode is quarter-wave mode. The pressure waves induce periodical vortex shedding from the combustor dump plane, thus changing, the flame shape and location. This leads to temporal and spatial fluctuations in heat release rate, and the Rayleigh index, the correlation between pressure and heat release fluctuations, indicates that these fluctuations are coupled to sustain combustion oscillations. Secondary fuel injection control is introduced to charge the coupling between these factors. This numerical simulation succeeds in reproducing reduced combustion oscillations with constant injection of 3 percent fuel through the swirler hub injection ports. The change in flame shape is reproduced and the reduced amplitude can be attributed to the change in heat release distribution as the Rayleigh index implies. Thus, it is expected that the amplitude may be reduced further when injection phase control is additionally introduced with a feedback control system, and this is our future research subject.", "subitem_description_type": "Other"}]}, "item_5_description_32": {"attribute_name": "資料番号", "attribute_value_mlt": [{"subitem_description": "資料番号: AA0049212011", "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: JAXA-SP-05-017", "subitem_description_type": "Other"}]}, "item_5_publisher_8": {"attribute_name": "出版者", "attribute_value_mlt": [{"subitem_publisher": "宇宙航空研究開発機構"}]}, "item_5_publisher_9": {"attribute_name": "出版者（英）", "attribute_value_mlt": [{"subitem_publisher": "Japan Aerospace Exploration Agency (JAXA)"}]}, "item_5_source_id_21": {"attribute_name": "ISSN", "attribute_value_mlt": [{"subitem_source_identifier": "1349-113X", "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": "AA11984031", "subitem_source_identifier_type": "NCID"}]}, "item_5_text_20": {"attribute_name": "その他キーワード", "attribute_value_mlt": [{"subitem_text_value": "無機及び物理化学"}, {"subitem_text_value": "流体力学及び熱伝導"}]}, "item_5_text_35": {"attribute_name": "JAXAカテゴリ", "attribute_value_mlt": [{"subitem_text_value": "JAXAカテゴリ: 特別資料"}]}, "item_5_text_40": {"attribute_name": "jaxa出版物種類", "attribute_value_mlt": [{"subitem_text_value": "jaxa出版物種類: SP"}]}, "item_5_text_43": {"attribute_name": "DSpaceコレクション番号", "attribute_value_mlt": [{"subitem_text_value": "DSpaceコレクション番号: 7"}]}, "item_5_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"}, {"subitem_text_value": "宇宙航空研究開発機構 総合技術研究本部"}, {"subitem_text_value": "宇宙航空研究開発機構 総合技術研究本部"}, {"subitem_text_value": "宇宙航空研究開発機構 総合技術研究本部"}]}, "item_5_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"}, {"subitem_text_language": "en", "subitem_text_value": "Japan Aerospace Exploration Agency Institute of Space Technology and Aeronautics"}, {"subitem_text_language": "en", "subitem_text_value": "Japan Aerospace Exploration Agency Institute of Space Technology and Aeronautics"}, {"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": "新城, 淳史"}], "nameIdentifiers": [{"nameIdentifier": "30751", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "松山, 新吾"}], "nameIdentifiers": [{"nameIdentifier": "30752", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "溝渕, 泰寛"}], "nameIdentifiers": [{"nameIdentifier": "30753", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "小川, 哲"}], "nameIdentifiers": [{"nameIdentifier": "30754", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Shinjo, Junji", "creatorNameLang": "en"}], "nameIdentifiers": [{"nameIdentifier": "30755", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Matsuyama, Shingo", "creatorNameLang": "en"}], "nameIdentifiers": [{"nameIdentifier": "30756", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Mizobuchi, Yasuhiro", "creatorNameLang": "en"}], "nameIdentifiers": [{"nameIdentifier": "30757", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Ogawa, Satoru", "creatorNameLang": "en"}], "nameIdentifiers": [{"nameIdentifier": "30758", "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": "2020-01-16"}], "displaytype": "detail", "download_preview_message": "", "file_order": 0, "filename": "49212011.pdf", "filesize": [{"value": "2.3 MB"}], "format": "application/pdf", "future_date_message": "", "is_thumbnail": false, "licensetype": "license_free", "mimetype": "application/pdf", "size": 2300000.0, "url": {"label": "49212011.pdf", "url": "https://jaxa.repo.nii.ac.jp/record/6144/files/49212011.pdf"}, "version_id": "0e4a3963-7a97-47c8-9148-037386c7be02"}]}, "item_keyword": {"attribute_name": "キーワード", "attribute_value_mlt": [{"subitem_subject": "希薄予混合燃焼器", "subitem_subject_scheme": "Other"}, {"subitem_subject": "燃焼", "subitem_subject_scheme": "Other"}, {"subitem_subject": "火炎", "subitem_subject_scheme": "Other"}, {"subitem_subject": "流れ場", "subitem_subject_scheme": "Other"}, {"subitem_subject": "ガスタービンエンジン", "subitem_subject_scheme": "Other"}, {"subitem_subject": "メタン", "subitem_subject_scheme": "Other"}, {"subitem_subject": "スワーラ", "subitem_subject_scheme": "Other"}, {"subitem_subject": "渦度", "subitem_subject_scheme": "Other"}, {"subitem_subject": "圧力振動", "subitem_subject_scheme": "Other"}, {"subitem_subject": "数値解析", "subitem_subject_scheme": "Other"}, {"subitem_subject": "ラージエディーシミュレーション", "subitem_subject_scheme": "Other"}, {"subitem_subject": "lean premixed combustor", "subitem_subject_language": "en", "subitem_subject_scheme": "Other"}, {"subitem_subject": "combustion", "subitem_subject_language": "en", "subitem_subject_scheme": "Other"}, {"subitem_subject": "flame", "subitem_subject_language": "en", "subitem_subject_scheme": "Other"}, {"subitem_subject": "flow field", "subitem_subject_language": "en", "subitem_subject_scheme": "Other"}, {"subitem_subject": "gas turbine engine", "subitem_subject_language": "en", "subitem_subject_scheme": "Other"}, {"subitem_subject": "methane", "subitem_subject_language": "en", "subitem_subject_scheme": "Other"}, {"subitem_subject": "swirler", "subitem_subject_language": "en", "subitem_subject_scheme": "Other"}, {"subitem_subject": "vorticity", "subitem_subject_language": "en", "subitem_subject_scheme": "Other"}, {"subitem_subject": "pressure oscillation", "subitem_subject_language": "en", "subitem_subject_scheme": "Other"}, {"subitem_subject": "numerical analysis", "subitem_subject_language": "en", "subitem_subject_scheme": "Other"}, {"subitem_subject": "large eddy simulation", "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": "希薄予混合燃焼器内の燃焼挙動に関する数値解析", "item_titles": {"attribute_name": "タイトル", "attribute_value_mlt": [{"subitem_title": "希薄予混合燃焼器内の燃焼挙動に関する数値解析"}]}, "item_type_id": "5", "owner": "1", "path": ["1052", "1891"], "permalink_uri": "https://jaxa.repo.nii.ac.jp/records/6144", "pubdate": {"attribute_name": "公開日", "attribute_value": "2015-03-26"}, "publish_date": "2015-03-26", "publish_status": "0", "recid": "6144", "relation": {}, "relation_version_is_last": true, "title": ["希薄予混合燃焼器内の燃焼挙動に関する数値解析"], "weko_shared_id": -1}