JAXA Repository / AIREX 未来へ続く、宙(そら)への英知
Other TitleFar-field Noise and Near-field Flow Validation of Tandem Cylinder Flow Simulations
Author(jpn)今村, 太郎; 平井, 亨; 榎本, 俊治; 山本, 一臣
Author(eng)Imamura, Taro; Hirai, Toru; Enomoto, Shunji; Yamamoto, Kazuomi
Author Affiliation(jpn)宇宙航空研究開発機構航空プログラムグループ (JAXA)(APG); 菱友システムズ; 宇宙航空研究開発機構航空プログラムグループ (JAXA)(APG); 宇宙航空研究開発機構航空プログラムグループ (JAXA)(APG)
Author Affiliation(eng)Aviation Program Group, Japan Aerospace Exploration Agency (JAXA)(APG); Ryoyu Systems; Aviation Program Group, Japan Aerospace Exploration Agency (JAXA)(APG); Aviation Program Group, Japan Aerospace Exploration Agency (JAXA)(APG)
Issue Date2012-03-30
Japan Aerospace Exploration Agency (JAXA)
Publication title宇宙航空研究開発機構特別資料: 第43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2011論文集
JAXA special publication: Proceedings of 43rd Fluid Dynamics Conference / Aerospace Numerical Simulation Symposium 2011
Start page89
End page94
Publication date2012-03-30
AbstractIn this paper, flow around tandem cylinder is solved using UPACS-LES code developed in JAXA. Several key issues for unsteady flow simulation are investigated by changing the parameters, such as turbulence modeling and grid density. The flow field is compared with the experiment for both far- and near- field. Current results indicate that the calculation of the boundary layer and the shear layer around the cylinders plays important role especially to the near field flow structure while it is less sensitive to the far-field noise. Using LES/RANS hybrid technique with fine grid, which consists of 70 million grid points, near-field flow structures including both steady and unsteady components, show very good agreement with the experiment. Additionally, far-field PSD shows fair agreement with the experiment.
DescriptionPhysical characteristics: Original contains color illustrations
Meeting Information: 43rd Fluid Dynamics Conference / Aerospace Numerical Simulation Symposium 2011 (July 7-8, 2011. Waseda University, International Conference Center), Tokyo Japan
形態: カラー図版あり
会議情報: 第43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2011 (2011年7月7日-8日. 早稲田大学国際会議場) 東京
Document TypeConference Paper
JAXA Category特別資料
Report NoJAXA-SP-11-015

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