Wind tunnel test method for active control of helicopter rotor noise based on trailing edgelets
A technology for helicopter rotor and wind tunnel testing, applied in the field of wind tunnel testing, can solve the problem that the test research has not been carried out effectively, and achieve the effect of improving the test quality
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[0053] In order to study the influence of active control technology on helicopter rotor noise, the present invention provides a helicopter rotor noise active control wind tunnel test method based on trailing edgelets based on the existing large-scale aeroacoustic wind tunnel and a helicopter rotor acoustic test platform, The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0054] The wind tunnel test method for active control of helicopter rotor noise based on trailing edgelets is mainly implemented based on a large acoustic wind tunnel, a helicopter rotor acoustic test platform and a trailing edgelet active control rotor model, such as Figure 2~Figure 4 shown.
[0055] Aeroacoustics wind tunnel is a low-turbulence and low-noise recirculation wind tunnel with dual-purpose open / closed test section. The wind tunnel is equipped with tail support devices, acoustic measurement systems and other equipment, and mainly carri...
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