@inproceedings{oai:jaxa.repo.nii.ac.jp:00004269,
 author = {杉浦, 正彦 and 田辺, 安忠 and 齊藤, 茂 and 菅原, 瑛明 and 大塩, 慧太朗 and 金崎, 雅博 and Sugiura, Masahiko and Tanabe, Yasutada and Saito, Shigeru and Sugawara, Hideaki and Ohshio, Keitaro and Kanazaki, Masahiro},
 book = {宇宙航空研究開発機構特別資料, JAXA Special Publication: Proceedings of 44th Fluid Dynamics Conference / Aerospace Numerical Simulation Symposium 2012},
 month = {Mar},
 note = {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, 44th Fluid Dynamics Conference / Aerospace Numerical Simulation Symposium 2012 (July 5-6, 2012. Toyama International Conference Center), Toyama Japan, 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., 形態: カラー図版あり, Physical characteristics: Original contains color illustrations, 資料番号: AA0061958029, レポート番号: JAXA-SP-12-010},
 pages = {173--178},
 publisher = {宇宙航空研究開発機構(JAXA), Japan Aerospace Exploration Agency (JAXA)},
 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},
 volume = {JAXA-SP-12-010},
 year = {2013}
}