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本文给出了用ＩＦＡ３００ 热膜（ 热线） 风速仪Ｘ 形探针测量双舌形挡板变截面涡轮蜗壳无叶喷嘴出口速度场的方法，分析了挡板开度对无叶喷嘴出口气流参数的影响。
In this paper, the method of measuring the outlet velocities of a non-leaf nozzle with double-tongue baffles in a double-vane baffle is given by means of an IFA300 hot film anemometer X-shaped probe. The influence of baffle opening on the exit airflow parameters Impact.