研究给出了向心涡轮通道子午面的绝对总压分布。研究结果表明，向心涡轮通道表现出了高品质的膨胀流动，绝对总压沿着流向减小，除了附面层区域以及出口间隙局部区域外，流动参数分布较为合理，且参数梯度较小，不存在局部高损失区域。这些流动参数的分布规律保证了涡轮叶轮高效的热-功转换能力。

The absolute total pressure distribution on the meridian surface of the centripetal turbine channel is given. The research results show that the centripetal turbine channel exhibits high quality expansion flow, and the absolute total pressure decreases along the flow direction. Except for the boundary layer region and the local outlet clearance region, the flow parameters are distributed reasonably, and the parameter gradient is small, and there is no local high loss region. The distribution of these flow parameters ensures the efficient heat-work conversion ability of the turbine impeller.