非定常压力 meaning in English

unsteady pressure

The unsteady surface pressures on the rotor blades of a single - stage low - speed axial compressor were measured by means of mounting micro - sensors on the surface the blades
摘要为了研究上游叶片尾迹对轴流压气机转子叶片非定常表面压力的影响，采用在叶片表面埋设微型压力传感器的方法，测量了一个单级低速轴流压气机转子叶片的非定常压力分布。
On the rotor blade pressure surface , the dominant frequencies of unsteady surface pressure are the up - stream blade wake passing frequency and its harmonics , and the amplitudes of pressure fluctuations decrease from leading edge to trailing edge
转子叶片吸力面非定常压力受叶片附面层和上游叶片尾迹共同影响，其主导频率为上游叶片尾迹频率及其倍频，但是在吸力面前部气流加速区压力波动幅度沿流向增大，而在吸力面后部气流减速区压力波动幅度沿流向减小。