Abstract
AbstractTaking the core engine test air intake system as the research object, through the numerical simulation calculation of the test intake device and the compressor inlet of a core engine, the influence of the selection of the test section of the intake device on the accuracy of the air flow field test is explored, and the influence factors of the compressor air inlet struts and probe on the test accuracy are analyzed. The results show that: the selection of different test sections of the air intake device, the uniformity of static pressure distribution, the unevenness of static pressure (no more than 1%) and flow coefficient are different, but the inlet flow pipe, the inlet probe of test section I and the inlet support plate have a certain impact on the inlet flow field of the compressor. The test uniformity should be considered when arranging the circumferential positions of the probes of the main test sections of the compressor, and the influence of the wake area of the probe of section I and the air inlet struts should be considered in space.KeywordsCore engineAir intake deviceFlow tubeCompressorFlow fieldNumerical simulation
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