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用氢气泡法流场显示技术，获得了不同攻角、不同径向间隙下涡轮平面叶栅端壁区内各种旋涡的发生、发展、涡－涡干涉、涡－附面层干涉的非定常流动图画，加深对涡轮端壁区流动结构的认识。
With the flow field display technology of hydrogen bubble method, the occurrence and development of various vortices in the endwall area of turbine cascade blades under different angles of attack and different radial clearances are obtained. The vortex-vortex interference and the unsteady vortex-surface interference Flowing drawings deepen the understanding of the flow structure in the end wall of the turbine.