Ultrasonic and subsonic profile combination cascade for compressor
An ultrasonic blade and compressor technology, applied in mechanical equipment, machine/engine, liquid fuel engine, etc., can solve problems such as difficult design
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[0013] The specific implementation steps for the design of supersonic and subsonic airfoil combined cascades are as follows:
[0014] Step 1: Given parameters such as flow channel, blade leading and trailing edge, and circulation distribution, conduct flow design in the stage environment, and obtain the distribution of meridian surface parameters including the air flow angle distribution in the stator area;
[0015] Step 2: According to the calculated airflow angle distribution, divide the axial boundary position of the front and rear rows, so that the change of the front exhaust flow angle is slightly smaller (less than 10°), and the change of the rear exhaust flow angle is slightly larger, and calculate the load distribution of the front and rear rows, and check before and after Whether the ratio of the exhaust pressure rise coefficient is between 1.8 and 2.2, if the deviation is large, it is necessary to return to step 1 to adjust the circulation distribution;
[0016] Step...
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