Due to the influence of radial positive pressure gradient, low-energy gas moves along trailing area to hub. That causes rapid dissipation and weakening of downstream passage vortex.
在叶栅下游，由于径向正压梯度的影响，低能气体沿尾流区向轮毂输运，引起下通道涡的迅速消散与衰减。
The results indicate that periodic stator wakes can reduce the radial vorticity of hub passage vortex.
结果表明，静子尾迹的非定常作用一定程度减小了转子轮毂二次流的径向涡量；
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