{"_buckets": {"deposit": "1087f4a7-3156-4f75-90d8-0f1b50b8eb2f"}, "_deposit": {"created_by": 1, "id": "4905", "owners": [1], "pid": {"revision_id": 0, "type": "depid", "value": "4905"}, "status": "published"}, "_oai": {"id": "oai:jaxa.repo.nii.ac.jp:00004905", "sets": ["945", "1540", "1884", "1891"]}, "author_link": ["22375", "22377", "22379", "22376", "22380", "22378"], "item_5_alternative_title_2": {"attribute_name": "その他のタイトル（英）", "attribute_value_mlt": [{"subitem_alternative_title": "An Investigation on Engine Configuration utilizing Aerodynamic Effect of Shock Waves in a Scramjet Engine"}]}, "item_5_biblio_info_10": {"attribute_name": "書誌情報", "attribute_value_mlt": [{"bibliographicIssueDates": {"bibliographicIssueDate": "2010-02-26", "bibliographicIssueDateType": "Issued"}, "bibliographicVolumeNumber": "JAXA-SP-09-011", "bibliographic_titles": [{"bibliographic_title": "宇宙航空研究開発機構特別資料: 第41回流体力学講演会/航空宇宙数値シミュレーション技術シンポジウム2009論文集"}, {"bibliographic_title": "JAXA Special Publication: Proceedings fo 41st Fluid Dynamics Conference / Aerospace Numerical Simulation Symposium 2009", "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": "平成21年6月18-19日. 宇宙航空研究開発機構調布航空宇宙センター", "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": "18 June-19 June, 2009, Japan Aerospace Exploration Agency", "subitem_description_type": "Other"}]}, "item_5_description_17": {"attribute_name": "抄録（英）", "attribute_value_mlt": [{"subitem_description": "Japan Aerospace Exploration Agency has been investigating scramjet engines in Kakuda Space Center using RamJet Engine Test Facility (RJTF) et al since National Aerospace Laboratory days. The engine performance tested at the flight condition of Mach 6 in RJTF showed very important characteristics depending on internal geometry. Recently Sato and others found in the result of CFD research that there was a hot area caused by 3-dimensional interaction of the shock wave from cowl leading edge and the shock wave from strut leading edge and that the area covered fuel injection area. This hot area named \"hot triangle\" can bring the good transition from weak combustion to intensive combustion in the engine. It is very important to consider the hot triangle when engine geometry is designed. The hot triangle was realized in the engine configuration equipped with a 5/5-height strut, that is, \"the original-height strut\". Once the hot triangle is kept, some part of the strut which does not contribute the hot triangle can be cut off. In this report the authors propose inverted struts which have shorter height than the original one but attached on the cowl. The authors used CFD method to find hot triangles which may appear in an inverted 1/5-height and an inverted 2/5-height strut. It is found that the inverted 2/5-height strut gives the same effect as the original one. According to this result, the shorter strut can give smaller drag and increase the net thrust of the engine.", "subitem_description_type": "Other"}]}, "item_5_description_18": {"attribute_name": "内容記述", "attribute_value_mlt": [{"subitem_description": "形態: カラー図版あり", "subitem_description_type": "Other"}]}, "item_5_description_19": {"attribute_name": "内容記述（英）", "attribute_value_mlt": [{"subitem_description": "Physical characteristics: Original contains color illustrations", "subitem_description_type": "Other"}]}, "item_5_description_32": {"attribute_name": "資料番号", "attribute_value_mlt": [{"subitem_description": "資料番号: AA0064672007", "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-09-011", "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_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_36": {"attribute_name": "JAXAカテゴリ2", "attribute_value_mlt": [{"subitem_text_value": "JAXAカテゴリ2: AP"}]}, "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_41": {"attribute_name": "jaxa出版物シリーズ", "attribute_value_mlt": [{"subitem_text_value": "jaxa出版物シリーズ: 015"}]}, "item_5_text_42": {"attribute_name": "シンポジウム区分", "attribute_value_mlt": 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