Effects of rotor whirl on starting ability and flow performance of Rampressor rotor inlet

In order to obtain the variation of starting ability and performance of inlet flow field under rotor whirl, the compression inlet flow field of Rampressor rotor is simulated based on rotor whirl. Starting speed and flow performance of Rampressor inlet are analyzed under different rotor whirl amplitude. The results show that rotor whirl has significant effect on starting ability and performance of Rampressor rotor inlet. Along with the increment of rotor whirl amplitude, the stable working range of Rampressor rotor inlet is reduced. The effect of rotor whirl on flow performance of Rampressor inlet has an extreme point. When rotor whirl amplitude is less than this extreme point e=100μm, flow performance of Rampressor inlet gets better. On the constant operation condition of Rampressor rotor, flow stability of Rampressor inlet heightens with the increase of rotor whirl amplitude.