{"_buckets": {"deposit": "82b8c0a3-b427-4445-8f2b-3dc9b7241cf3"}, "_deposit": {"id": "11997", "owners": [], "pid": {"revision_id": 0, "type": "depid", "value": "11997"}, "status": "published"}, "_oai": {"id": "oai:nagoya.repo.nii.ac.jp:00011997", "sets": ["322"]}, "author_link": ["37986", "37987", "37988", "37989", "37990", "37991"], "item_10_alternative_title_19": {"attribute_name": "その他のタイトル", "attribute_value_mlt": [{"subitem_alternative_title": "Base Drag Reduction of 2D Bluff Body by Using Tabs at Transonic Speeds", "subitem_alternative_title_language": "en"}]}, "item_10_biblio_info_6": {"attribute_name": "書誌情報", "attribute_value_mlt": [{"bibliographicIssueDates": {"bibliographicIssueDate": "2008-01-05", "bibliographicIssueDateType": "Issued"}, "bibliographicIssueNumber": "648", "bibliographicPageEnd": "21", "bibliographicPageStart": "15", "bibliographicVolumeNumber": "56", "bibliographic_titles": [{"bibliographic_title": "日本航空宇宙学会論文集", "bibliographic_titleLang": "ja"}]}]}, "item_10_description_4": {"attribute_name": "抄録", "attribute_value_mlt": [{"subitem_description": "As base drag accounts for most of the total drag for spacecraft with a large base area, reduction in the base drag improves its aerodynamic performance. In the present study, a method using a pair of tabs normal to the base surface is proposed to reduce the base drag, and its effects on drag reduction are experimentally examined for a two-dimensional, simple bluff body with a large base area, the cross-section of which consists of a circular forebody and a rectangular afterbody, by changing the tab’s position and length. In addition, the flow fields around the model with/without tabs were visualized by the schlieren method with a high speed video camera, and CFD analysis was also made to supplement the experimental results. It was found that the tab method can remarkably increase the base pressure, which leads to a large decrease in the base drag. In the case where a pair of tabs with a non-dimensional length of 0.38 are installed at the base edges, the total drag is reduced by about 20.6% at a Mach number of 0.6 compared with that in the baseline case without tabs. Even when short tabs with a non-dimensional length of 0.07 are employed, about 10.0% reduction in the base drag is achieved. Thus, it was made clear from this study that the tab method proposed here is effective to decrease base drag in the transonic flow.", "subitem_description_language": "en", "subitem_description_type": "Abstract"}]}, "item_10_identifier_60": {"attribute_name": "URI", "attribute_value_mlt": [{"subitem_identifier_type": "HDL", "subitem_identifier_uri": "http://hdl.handle.net/2237/13873"}]}, "item_10_publisher_32": {"attribute_name": "出版者", "attribute_value_mlt": [{"subitem_publisher": "日本航空宇宙学会", "subitem_publisher_language": "ja"}]}, "item_10_select_15": {"attribute_name": "著者版フラグ", "attribute_value_mlt": [{"subitem_select_item": "publisher"}]}, "item_10_source_id_7": {"attribute_name": "ISSN", "attribute_value_mlt": [{"subitem_source_identifier": "1344-6460", "subitem_source_identifier_type": "PISSN"}]}, "item_10_text_14": {"attribute_name": "フォーマット", "attribute_value_mlt": [{"subitem_text_value": "application/pdf"}]}, "item_1615787544753": {"attribute_name": "出版タイプ", "attribute_value_mlt": [{"subitem_version_resource": "http://purl.org/coar/version/c_970fb48d4fbd8a85", "subitem_version_type": "VoR"}]}, "item_access_right": {"attribute_name": "アクセス権", "attribute_value_mlt": [{"subitem_access_right": "open access", "subitem_access_right_uri": "http://purl.org/coar/access_right/c_abf2"}]}, "item_creator": {"attribute_name": "著者", "attribute_type": "creator", "attribute_value_mlt": [{"creatorNames": [{"creatorName": "橋本, 敦", "creatorNameLang": "ja"}], "nameIdentifiers": [{"nameIdentifier": "37986", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "HASHIMOTO, Atsushi", "creatorNameLang": "en"}], "nameIdentifiers": [{"nameIdentifier": "37987", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "小林, 貴広", "creatorNameLang": "ja"}], "nameIdentifiers": [{"nameIdentifier": "37988", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "KOBAYASHI, Takahiro", "creatorNameLang": "en"}], "nameIdentifiers": [{"nameIdentifier": "37989", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "中村, 佳朗", "creatorNameLang": "ja"}], "nameIdentifiers": [{"nameIdentifier": "37990", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "NAKAMURA, Yoshiaki", "creatorNameLang": "en"}], "nameIdentifiers": [{"nameIdentifier": "37991", "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": "2018-02-20"}], "displaytype": "detail", "download_preview_message": "", "file_order": 0, "filename": "jjsass_v56_n648_p15.pdf", "filesize": [{"value": "1.6 MB"}], "format": "application/pdf", "future_date_message": "", "is_thumbnail": false, "licensetype": "license_note", "mimetype": "application/pdf", "size": 1600000.0, "url": {"label": "jjsass_v56_n648_p15.pdf", "objectType": "fulltext", "url": "https://nagoya.repo.nii.ac.jp/record/11997/files/jjsass_v56_n648_p15.pdf"}, "version_id": "b51eae36-b8b4-420f-8c19-c66e1666b6af"}]}, "item_keyword": {"attribute_name": "キーワード", "attribute_value_mlt": [{"subitem_subject": "Bluff Body", "subitem_subject_scheme": "Other"}, {"subitem_subject": "Tansonic Flow", "subitem_subject_scheme": "Other"}, {"subitem_subject": "Base Flow", "subitem_subject_scheme": "Other"}, {"subitem_subject": "Drag Reduction", "subitem_subject_scheme": "Other"}, {"subitem_subject": "Flow Control", "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": "journal article", "resourceuri": "http://purl.org/coar/resource_type/c_6501"}]}, "item_title": "遷音速鈍頭2次元物体でのタブによるベース抵抗低減", "item_titles": {"attribute_name": "タイトル", "attribute_value_mlt": [{"subitem_title": "遷音速鈍頭2次元物体でのタブによるベース抵抗低減", "subitem_title_language": "ja"}]}, "item_type_id": "10", "owner": "1", "path": ["322"], "permalink_uri": "http://hdl.handle.net/2237/13873", "pubdate": {"attribute_name": "PubDate", "attribute_value": "2010-07-27"}, "publish_date": "2010-07-27", "publish_status": "0", "recid": "11997", "relation": {}, "relation_version_is_last": true, "title": ["遷音速鈍頭2次元物体でのタブによるベース抵抗低減"], "weko_shared_id": -1}