CFD analysis and validation study of the 2-D high lift devices

Autor:	Takenaka, Keizo, Yamamoto, Kazuomi
Jazyk:	japonština
Rok vydání:	2005
Předmět:	validation 計算格子 computational grid high lift device 格子依存性 aerodynamic characteristic パターン最適化 2次元物体 flow analysis pattern optimization 実証 高揚力装置 空力特性 航空機設計 CFD 流れ場解析 two dimensional body grid dependency aircraft design
Zdroj:	宇宙航空研究開発機構特別資料: 航空宇宙数値シミュレーション技術シンポジウム2004論文集 = JAXA Special Publication: Proceedings of Aerospace Numerical Simulation Symposium 2004. :87-92
ISSN:	1349-113X
Popis:	This paper presents numerical study on the 2-D high lift devices (HLD). CFD analyses of 2 element (NLR-7301) and 4 element (Boeing Model C) airfoils was conducted, using 2 different CFD codes (JAXA UPACS and MHI in-house codes). MHI in-house code adopts overset grid method. A new method of overset pattern optimization was developed, and grid dependency due to interpolation process is reduced by this method. The detail process of the method is described. Through the validation study, both CFD results agree well with WTT results. However, through the careful investigation of the CFD results, it was found that turbulence transition treatment of CFD highly affected the estimation of HLD aerodynamic characteristics. Finally, it comes to the conclusion that accurate prediction of the transition location is necessary for that of aerodynamic characteristics of HLD. 資料番号: AA0048469014 レポート番号: JAXA-SP-04-012
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=jairo_______::4c6ad5213906bc113147c18afa4ac882 http://id.nii.ac.jp/1696/00006448/ Zobrazit plný text záznamu