研究结果表明，从叶轮进口至出口，静压均匀下降，压力梯度较小。这是由于该涡轮通道的膨胀比较小，通道的收缩比较低，且气流主要通过向心力实现膨胀对叶轮做功。压降主要发生在叶型喉部截面之前，喉部截面之后由于通道面积不再发生变化，所以压力基本保持不变。

The results show that the static pressure decreases uniformly and the pressure gradient is small from the inlet to the outlet of the impeller. This is because the expansion of the turbine channel is relatively small, the contraction of the channel is relatively low, and the air flow mainly achieves the work of expansion on the impeller through the centripetal force. The pressure drop mainly occurs before the throat section of the blade, and the pressure remains basically unchanged after the throat section because the channel area no longer changes.