Aeroacoustics of Rotorcraft
Aeroacoustics of Rotorcraft
- New search for: R. D. Janakiram
- New search for: R. D. Janakiram
A review of the state-of-the-art of rotorcraft aeroacoustics with emphasis on helicopter noise is presented. The fundamentals of rotorcraft aeroacoustics are discussed in terms of the underlying source mechanisms, theoretical models and prediction methodologies in three categories of rotor noise; rotational (non-impulsive) noise; impulsive noise including high-speed impulsive noise, blade-vortex interaction noise and main rotor/tail rotor interaction noise; and broadband noise. Key model rotor and flight test experiments are also discussed. Recent developments, especially those that occurred in the 1980s in the area or rotorcraft (or helicopter) aeroacoustics are discussed in three categories: aeroacoustic testing and data base development, noise prediction, and noise reduction.
Document information
Aeroacoustics of Rotorcraft
1990
33 pages
Report
No indication
English
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