NCTAM papers, National Congress of Theoretical and Applied Mechanics, Japan
53rd NCTAM papers, National Congress of Theoretical and Applied Mechanics, Japan
Session ID : 2A10
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OS4-2
Aerodynamic analysis of rotor higher harmonic control using a CFD technique
*NATSUKI KONDOTAKASHI AOYAMASHIGERU SAITO
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Abstract
This paper shows the results of aerodynamic and acoustic analysis of rotor higher harmonic control (HHC) using a CFD technique. A moving overlapped grid method is applied in the CFD code and three types of grid, inner and outer background grids, and blade grid are used to accurately simulate the blade-vortex interaction (BVI). The calculated model is a single-blade rotor which will be tested by JAXA. In this calculation, the frequency of HHC is 20Hz (2/rev), and the amplitude is 2.0 . The delay of control phase is 270 . In the case of HHC, the effect of noise reduction using HHC is about 2dB(A).
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© 2004 Committee for Mechanics and Structure,Science Council
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