This paper presents the results of the experimental investigation on the effects of internal acoustic excitation on enhancing performance of the annular cascade.
阐述了在环形扩压叶栅内利用非定常激励减少分离区损失的实验研究成果。
In regard to the excitation experiments, time-Accurate numerical stimulation was carried out to investigate the upstream disturbance frequency effect under different incidence in an annular cascade.
针对某静止环形叶栅的激励实验工作，相应的对扩压叶栅进行了不同气流攻角和激励频率的非定常粘性计算与流场分析。
For validating the aerodynamic characteristics of LP turbine guide vane, the wind blow was carried out for test cascade of the guide vane on the low speed annular wind tunnel.
为了考查低压涡轮导向器的气动性能，在低速环形叶栅风洞上对导向器的实验叶栅进行了吹风实验。
For validating the aerodynamic characteristics of LP turbine guide vane, the wind blow was carried out for test cascade of the guide vane on the low speed annular wind tunnel.
为了考查低压涡轮导向器的气动性能，在低速环形叶栅风洞上对导向器的实验叶栅进行了吹风实验。
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