{"created":"2023-06-20T14:37:49.474059+00:00","id":4269,"links":{},"metadata":{"_buckets":{"deposit":"57c0acc7-b221-4637-88e8-1c1ce7794f90"},"_deposit":{"created_by":1,"id":"4269","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"4269"},"status":"published"},"_oai":{"id":"oai:jaxa.repo.nii.ac.jp:00004269","sets":["1398:1530:1537","1543:1874:1881","1887:1891","9:789:888:896"]},"author_link":["18723","18727","18731","18721","18722","18725","18730","18729","18720","18724","18728","18726"],"item_5_alternative_title_2":{"attribute_name":"その他のタイトル（英）","attribute_value_mlt":[{"subitem_alternative_title":"Hybrid Method of Prescribed Wake Model and CFD for Helicopter BVI Noise Prediction"}]},"item_5_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2013-03-29","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"178","bibliographicPageStart":"173","bibliographicVolumeNumber":"JAXA-SP-12-010","bibliographic_titles":[{"bibliographic_title":"宇宙航空研究開発機構特別資料"},{"bibliographic_title":"JAXA Special Publication: Proceedings of 44th Fluid Dynamics Conference / Aerospace Numerical Simulation Symposium 2012","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":"第44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2012 (2012年7月5日-6日. 富山国際会議場大手町フォーラム), 富山市, 富山県","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":"44th Fluid Dynamics Conference / Aerospace Numerical Simulation Symposium 2012 (July 5-6, 2012. Toyama International Conference Center), Toyama Japan","subitem_description_type":"Other"}]},"item_5_description_17":{"attribute_name":"抄録（英）","attribute_value_mlt":[{"subitem_description":"This paper explains a hybrid method of prescribed wake model and computational fluid dynamics (CFD) developed by Japan Aerospace Exploration Agency (JAXA). Blade vortex interaction (BVI) noise is a main source of helicopter noise. Precise prediction of flow field around helicopter is required to establish BVI noise reduction technology. Despite CFD predicts flow field precisely, it is computationally expensive. On the other hand, prescribed wake model which empirically predicts rotor trailing vortices reduces computational cost greatly compared to CFD. Therefore, hybrid method of prescribed wake model and CFD is a promising technology for BVI noise reduction technology. The base CFD code herein assumed is a structured grid Euler solver, <rFlow3D>, which has intensively been developed for helicopter applications at JAXA. The rFlow3D is a highly versatile CFD code that can numerically simulate flows around helicopter in a wide range of flo\"\"\" w conditions, considering trimming and blade elastic deformation. In this study, several existing prescribed wake modelare combined with rFlow3D. Accuracy of the hybrid method is evaluated by comparing computational results with experimental ones. Normal force coefficient on blade and noise contour computed by the hybrid method show good agreement with experiment, however, they are still overestimated. We plan to improve the hybrid method by utilizing vortex position and strength obtained from rFlow3D in the near　future.","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: AA0061958029","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-12-010","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(JAXA)"}]},"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_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機体システム研究グループ(JAXA)"},{"subitem_text_value":"宇宙航空研究開発機構航空本部機体システム研究グループ(JAXA)"},{"subitem_text_value":"宇宙航空研究開発機構航空本部事業推進部(JAXA)"},{"subitem_text_value":"菱友システムズ"},{"subitem_text_value":"首都大学東京"},{"subitem_text_value":"首都大学東京"}]},"item_5_text_7":{"attribute_name":"著者所属（英）","attribute_value_mlt":[{"subitem_text_language":"en","subitem_text_value":"Aircraft Systems Research Group, Institute of Aeronautical Technology, Japan Aerospace Exploration Agency (JAXA)"},{"subitem_text_language":"en","subitem_text_value":"Aircraft Systems Research Group, Institute of Aeronautical Technology, Japan Aerospace Exploration Agency (JAXA)"},{"subitem_text_language":"en","subitem_text_value":"Program Management and Integration Department, Institute of Aeronautical Technology, Japan Aerospace Exploration Agency (JAXA)"},{"subitem_text_language":"en","subitem_text_value":"Ryoyu Systems Co., Ltd."},{"subitem_text_language":"en","subitem_text_value":"Tokyo Metropolitan University"},{"subitem_text_language":"en","subitem_text_value":"Tokyo Metropolitan University"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"杉浦, 正彦"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"田辺, 安忠"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"齊藤, 茂"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"菅原, 瑛明"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"大塩, 慧太朗"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"金崎, 雅博"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Sugiura, Masahiko","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Tanabe, Yasutada","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Saito, Shigeru","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Sugawara, Hideaki","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Ohshio, Keitaro","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Kanazaki, Masahiro","creatorNameLang":"en"}],"nameIdentifiers":[{}]}]},"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","filename":"61958029.pdf","filesize":[{"value":"1.5 MB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"61958029.pdf","url":"https://jaxa.repo.nii.ac.jp/record/4269/files/61958029.pdf"},"version_id":"57a7bb27-fb38-441a-92b2-52b1a68a8665"}]},"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":"ヘリコプタのBVI騒音予測のための規定後流モデルとCFDのハイブリッド手法","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"ヘリコプタのBVI騒音予測のための規定後流モデルとCFDのハイブリッド手法"}]},"item_type_id":"5","owner":"1","path":["896","1537","1881","1891"],"pubdate":{"attribute_name":"公開日","attribute_value":"2015-03-26"},"publish_date":"2015-03-26","publish_status":"0","recid":"4269","relation_version_is_last":true,"title":["ヘリコプタのBVI騒音予測のための規定後流モデルとCFDのハイブリッド手法"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-06-21T08:43:35.688614+00:00"}