{"created":"2023-06-20T15:08:25.930953+00:00","id":37880,"links":{},"metadata":{"_buckets":{"deposit":"4103f734-fc8e-4bfd-b626-7c043937d272"},"_deposit":{"created_by":1,"id":"37880","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"37880"},"status":"published"},"_oai":{"id":"oai:jaxa.repo.nii.ac.jp:00037880","sets":["1887:1891","1896:1898:1913:1915"]},"author_link":["430744","430747","430746","430745"],"item_5_alternative_title_2":{"attribute_name":"その他のタイトル（英）","attribute_value_mlt":[{"subitem_alternative_title":"Numerical simulations of dynamic stall phenomena in low speed flows"}]},"item_5_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"1994-12","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"296","bibliographicPageStart":"291","bibliographicVolumeNumber":"27","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_16":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"翼型のまわりの動的失速流れの構造とメカニズムを明らかにするために、3次精度の風上差分スキームを用いて非圧縮のナビエ･ストークス方程式を解く数値シミュレーションによりこれらの現象を調べている。本論文では、運動格子系を用いてピッチング振動を行う翼型のまわりの剥離流れを計算した。計算に用いた翼型はNACA0012で、数値シミュレーションはレイノルズ数1.0×10{3}および3.5×10{4}で行った。レイノルズ数1.0×10{3}の場合、時間刻みおよび格子密度が空力特性に及ぼす影響を調べた。時間刻みはCLのヒステリシス特性にあまり影響しないが、格子密度を増すと頭下げの過程におけるCLの振動幅は大きくなる。また、数値シミュレーション結果を風洞試験結果と比較した。動的失速における顕著な流れのパターンが明らかにされた。","subitem_description_type":"Abstract"}]},"item_5_description_17":{"attribute_name":"抄録（英）","attribute_value_mlt":[{"subitem_description":"In order to reveal the flow structure and mechanism of dynamic stall around airfoils, these phenomena have been investigated numerically by solving incompressible Navier-Stokes equations with third-order upwind scheme. In this paper, separated flows around oscillating airfoils in pitch by moving mesh system have been calculated. The airfoil used for calculations is NACA (National Advisory Committee for Aeronautics) 0012 and numerical simulations have conducted under Re = 1.0 x 10(exp 3) and 3.5 x 10(exp 4). In case of Re = 1.0 x 10(exp 3), the influence of time divisions and densities of grids upon aerodynamic characteristics has been investigated. Time divisions have few influences upon the tendency of hysteresis of C(sub L), but if the number of grid points increases, vibrations of the curves of C(sub L) at pitching down process become large. Further, comparisons between numerical simulations and experiments with a wind tunnel. Quite significant flow patterns due to dynamic stall are revealed.","subitem_description_type":"Other"}]},"item_5_description_32":{"attribute_name":"資料番号","attribute_value_mlt":[{"subitem_description":"資料番号: AA0004174043","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-27","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":"九州大学 工学部 航空工学科"},{"subitem_text_value":"九州大学 大学院"}]},"item_5_text_7":{"attribute_name":"著者所属（英）","attribute_value_mlt":[{"subitem_text_language":"en","subitem_text_value":"Kyushu University Department of Aeronautic and Astronautics, Faculty of Engineering"},{"subitem_text_language":"en","subitem_text_value":"Kyushu University Graduate School"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"麻生, 茂"}],"nameIdentifiers":[{"nameIdentifier":"430744","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"隈本, 雄一"}],"nameIdentifiers":[{"nameIdentifier":"430745","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Aso, Shigeru","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"430746","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Kumamoto, Yuichi","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"430747","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":"2020-01-24"}],"displaytype":"detail","filename":"nalsp0027043.pdf","filesize":[{"value":"902.1 kB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"nalsp0027043.pdf","url":"https://jaxa.repo.nii.ac.jp/record/37880/files/nalsp0027043.pdf"},"version_id":"a4616edc-41de-42f6-8eb6-0c8c7b07d0c9"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"動的失速","subitem_subject_scheme":"Other"},{"subitem_subject":"非定常流れ","subitem_subject_scheme":"Other"},{"subitem_subject":"迎角","subitem_subject_scheme":"Other"},{"subitem_subject":"揚力変化ヒステリシス","subitem_subject_scheme":"Other"},{"subitem_subject":"低レイノルズ数","subitem_subject_scheme":"Other"},{"subitem_subject":"流れの可視化","subitem_subject_scheme":"Other"},{"subitem_subject":"流れ数値シミュレーション","subitem_subject_scheme":"Other"},{"subitem_subject":"非圧縮性ナビエス･トークス方程式","subitem_subject_scheme":"Other"},{"subitem_subject":"運動格子系","subitem_subject_scheme":"Other"},{"subitem_subject":"物体の周りの流れ","subitem_subject_scheme":"Other"},{"subitem_subject":"剥離流れ","subitem_subject_scheme":"Other"},{"subitem_subject":"航空機","subitem_subject_scheme":"Other"},{"subitem_subject":"翼型","subitem_subject_scheme":"Other"},{"subitem_subject":"振動翼","subitem_subject_scheme":"Other"},{"subitem_subject":"空力特性","subitem_subject_scheme":"Other"},{"subitem_subject":"dynamic stall","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"unsteady airfoil flow","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"attack angle","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"lift variation hysteresis","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"low Reynolds number","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"flow visualization","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"numerical flow simulation","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"incompressible Navier Stokes equation","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"moving grid system","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"flow around body","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"separated flow","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"aircraft","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"airfoil","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"oscillating airfoil","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"aerodynamic characteristics","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":"低速流におけるダイナミックストール現象の数値計算","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"低速流におけるダイナミックストール現象の数値計算"}]},"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":"37880","relation_version_is_last":true,"title":["低速流におけるダイナミックストール現象の数値計算"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-06-20T22:47:13.879204+00:00"}