本文介绍了舰用燃气轮机在空气直接由弯管引入压气机的情况下对弯管中拐角叶栅几何参数作一定选择的试验方法及试验结果。通过试验研究了叶栅稠度、宽度、叶型、进出口角等对气流均匀性及流动损失的影响。试验表明,拐角叶栅可大大降低气动损失,并满足压气机的进气条件。 This paper introduces the test methods and test results for the selection of geometric parameters of corner cascades in elbows with the introduction of air directly into the compressor by the gas turbine for ships. The influences of cascades’ consistency, width, airfoil, inlet and outlet angle on the uniformity of air flow and the flow loss were studied. Experiments show that the corner cascade can greatly reduce the aerodynamic losses, and meet the compressor intake conditions.