1625 LES乱流解析と風洞実験による2次元翼の遷移特性評価(J12-1 流体機械に関連した流体解析と数値最適化技術(1),J12 流体機械に関連した流体解析と数値最適化技術)

概要

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The present paper is concerned with a numerical simulation and an experimental evaluation of transition of flow around a two-dimensional airfoil. An LES (Large-eddy simulation) with classical Smagorinsky model is conducted with SMART-fem code to simulate the wind tunnel experiment for a wind-turbine airfoil, M-F073. The numerical results show that the flow is massively separated from the airfoil surface at Re=2×10^4, while it is almost attached at Re=2×10^5. The transition features turn out qualitatively consistent with the experimental results in terms of the lift coefficients and pressure distribution, though the transition Re of the computation is lower than that of the experiment, mainly due to lack of enough resolution.
社団法人日本機械学会の論文
2007-09-07