It is shown that in the present numerical investigations, the trailing edge shape and the reducedfrequency have an important influence on the vortex evolution.
数值研究表明，后缘形状、折合频率等对涡结构演化有重要影响。
2
Reducedfrequency of maintenance and repair, especially expensive repairs, is a direct fallout of weakening employment rates, consumer income and spending power.
保养和维修的次数减少(尤其是昂贵的维修)，直接导致就业市场疲软，消费者收入和消费能力下降。
3
The variation of aerodynamic parameters of cascade NACA0012 and PROF under different reducedfrequency shows that the reducedfrequency is an important factor that influences the flutter.