1601 後流の影響を受ける高負荷低圧タービン翼列流れにおけるLESパラメータ解析(S35-1 圧縮性流れの基礎と応用(1),S35 圧縮性流れの基礎と応用)

概要

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Large Eddy Simulation (LES) of high loaded Low Pressure Turbine (LPT) cascade was performed. A comparison is made with an existing experimental data for the same geometry and operating conditions. The purpose of this work is to clarify the effect of incoming wakes on the boundary layer flow It was demonstrated that the computed results were in good agreement with the experimental data The time-averaged separation region showed that the separation. point shifted downstream and the reattachment point shifted upstream with increasing Strouhal number. The mass-averaged loss coefficients for the low Reynolds number case didn't increase monotonically with the Strouhal number, as opposed to the High Reynolds number cases. This result showed a positive trend of the wake passing from the view point of loss control.
一般社団法人日本機械学会の論文
2007-09-07