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LES Investigation of Effects of Unsteady Wake/Blade Interactions in High Lift LP Turbines for Variable Turbulent Flows

机译:LES调查高升降机LP涡轮机的不稳定唤醒/刀片交互的影响,用于可变湍流流动

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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 by Funazaki et al. 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. Results carried out under compressible flow in high Reynolds number condition showed that decreased peak value of pressure coefficients. The calculated mass-averaged loss coefficients for the low Reynolds number cases showed that different trend from the high Reynolds number cases.
机译:进行了高负载低压涡轮机(LPT)级联的大涡流仿真(LES)。通过Funazaki等人的现有实验数据进行比较。对于相同的几何和操作条件。这项工作的目的是阐明传入唤醒对边界层流动的影响。有人证明,计算结果与实验数据吻合良好。在高雷诺数条件下在可压缩流下进行的结果表明,压力系数的峰值降低。低雷诺数例的计算的质量平均损耗系数显示出来自高雷诺数例的不同趋势。

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