面向电动飞机应用的不同叶尖螺旋桨噪声特性

doi:10.7527/S1000-6893.2020.24567

Abstract

Abstract: To design and select the propeller and minimize the overall noise of electric aircraft, first-order frequency sound pressure values of three kinds of propellers in both the cruise state and climbing state are calculated and analyzed using the LES model. The results show that the noise of the flat tip propeller is the lowest and that of the sharp propeller is the highest. The calculation results are verified via a scale model made and tested in the FL-9 wind tunnel of AVIC Aerodynamics Research Institute. The test results show good agreement with the calculation results, illustrating good engineering application value of the large eddy simulation in propeller noise calculation. Both the calculation and the test results reveal that the flat tip is helpful in electric aircraft propeller noise control.

Key words: electric aircraft, propeller design, aerodynamic noise, large eddy simulation, wind tunnel test

CLC Number:

V228.5

LIU Yuanqiang, WANG Yanbing, XIANG Song, WANG Mengqi. Noise characteristics of propellers with different blade tips for electric aircraft[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2021, 42(3): 624567-624567.

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Noise characteristics of propellers with different blade tips for electric aircraft

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