由计算的三元非定常压力数据来预估旋翼辐射的桨涡干扰噪声

ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 1996, Vol. 17 ›› Issue (6): 86-90.

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PREDICTION OF ROTOR BLADE VORTEX INTERACTION NOISE USING 3 D UNSTEADY SURFACE PRESSURE

Yin Jianping, Hu Zhangwei

Nanjing University of Aeronautics and Astronautics, Nanjing,210016

Received:1995-09-25 Revised:1996-04-19 Online:1996-12-25 Published:1996-12-25

Abstract

Abstract: Surface pressure data from 3 D unsteady free wake panel method has been used to predict the helicopter rotor blade vortex(BVI) interaction noise. Acoustic pressure time history and other predictions are validated with flight test and wind tunnel data in forward and forward descent flight and with famous WOPWOP results. Good agreement of the prediction with flight and wind tunnel test results has been obtained.

Key words: helicopter rotors, blade-vortex interaction, noise unsteady pressure wake

CLC Number:

Yin Jianping;Hu Zhangwei. PREDICTION OF ROTOR BLADE VORTEX INTERACTION NOISE USING 3 D UNSTEADY SURFACE PRESSURE[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 1996, 17(6): 86-90.

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PREDICTION OF ROTOR BLADE VORTEX INTERACTION NOISE USING 3 D UNSTEADY SURFACE PRESSURE

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