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titleOpenFOAMを用いたNACA0012翼型まわりの準二次元解析
Other TitleQuasi-2D Flow Analysis around NACA0012 Airfoil using OpenFOAM
Author(jpn)中谷, 淳; 村澤, 杏樹
Author(eng)Nakaya, Jun; Murasawa, Anju
Author Affiliation(jpn)岐阜工業高等専門学校; 岐阜工業高等専門学校
Author Affiliation(eng)Gifu National College of Technology; Gifu National College of Technology
Issue Date2014-03-31
Publisher宇宙航空研究開発機構(JAXA)
Japan Aerospace Exploration Agency (JAXA)
Publication title宇宙航空研究開発機構特別資料: 第45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2013論文集
JAXA Special Publication
VolumeJAXA-SP-13-011
Start page115
End page120
Publication date2014-03-31
Languagejpn
eng
AbstractIn this study, the reliability of OpenFOAM has been confirmed through the incompressible fluid analysis around the NACA0012 airfoil and comparing the result of the analysis between Ladson's experiment and Gregory's experiment. Reynolds number of the flow field is Re =6.0×10(exp 6) and dimension of the analysis flow field is quasi-two-dimensional flow and two-dimensional flow. "simpleFoam", Steady-state solver for incompressible turbulent flow based on the SIMPLE method, is selected as a solver, "Spalart-Allmaras model" is selected as a turbulence model. Free stream boundary conditions of the Spalart-Allmaras model utilized to OpenFOAM are work variables (wave dash nu) and turbulent kinematic viscosity (nu (sub t)). Work variables are (wave dash nu) = 1/10 (nu) , 10 (nu) and 1000 (nu). Analysis mesh is generated by blockMesh and snappyHexMesh for the quasi-two-dimensional analysis, and blockMesh for the two-dimensional analysis. As a result of quasi-two-dimensional analysis, lift and drag coefficient curves are not match to the experiment and stall appears with small angle of attack. The reason is because there is no boundary layer mesh in the quasi-tow-dimensional model. As the result of two-dimensional analysis, NACA’s mesh and blockMesh get close value to the Ladson's experiment and Gregory's experiment. Especially, pressure coefficient calculated by blockMesh model is match to the experiment result.
Description会議情報: 第45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2013 (2013年7月4日-5日. タワーホール船堀), 東京
形態: カラー図版あり
Meeting Information: 45th Fluid Dynamics Conference / Aerospace Numerical Simulation Symposium 2013 (July 4-5, 2013. Tower Hall Funabori), Tokyo, Japan
Physical characteristics: Original contains color illustrations
Document TypeConference Paper
JAXA Category特別資料
NASA Subject CategoryFluid Mechanics and Thermodynamics
ISSN1349-113X
NCIDAA11984031
SHI-NOAA0062268021
Report NoJAXA-SP-13-011
URIhttps://repository.exst.jaxa.jp/dspace/handle/a-is/22065


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