Experimental investigation of the acoustic damping of perforated liners with bias flow

13th AIAA/CEAS Aeroacoustics Conference (28th AIAA Aeroacoustics Conference)

Volumn , Issue , 2007, Pages

  Heuwinkel, C ^a   Enghardt, L ^a   Rohle I ^a  

^a Department of Fan and Compressor   (Germany)

Author keywords

[No Author keywords available]

Indexed keywords

ACOUSTIC PROPERTIES; ACOUSTIC WAVE ABSORPTION; AEROACOUSTICS; AVIATION; DAMPING; DUCTS; SOUND INSULATING MATERIALS;

AMBIENT PRESSURES; DISSIPATION COEFFICIENTS; EXPERIMENTAL INVESTIGATIONS; FREQUENCY DEPENDENT; MEASUREMENT TECHNIQUES; MICROPHONE CALIBRATION; PRESSURE OSCILLATION; THERMOACOUSTIC INSTABILITY;

ACOUSTIC WAVE PROPAGATION;

EID: 85088757239     PISSN: None     EISSN: None     Source Type: Conference Proceeding    
DOI: 10.2514/6.2007-3525     Document Type: Conference Paper

References (9)

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2. Bechert, D., "Sound absorption caused by vorticity shedding, demonstrated with a jet flow, " Journal of Sound and Vibration, Vol. 70, No. 3, 1980, pp. 389-405.
3. Howe, M. S., "Attenuation of sound in a low Mach number nozzle flow, " Journal of Fluid Mechanics, Vol. 91, No. 2, 1979, pp. 209-229.
4. ISO 5136, "Acoustics-Determination of sound power radiated into a duct by fans-In-duct method, " 2003, 2nd edition.
5. Eldredge, J. and Dowling, A., "The absorption of axial acoustic waves by a perforated liner with bias flow, " Journal of Fluid Mechanics, Vol. 485, 2003, pp. 307-335.
6. Chung, J., "Rejection of flow noise using a coherence function method, " Journal of the Acoustical Society of America, Vol. 62, No. 2, 1977, pp. 388-395.
7. Enghardt, L., "Bestimmung akustischer Streufaktoren im durchströmten Rohr-Optimierung von Mikrofonanordnung und Meßprozedur, " 1992, Diploma thesis, Göttingen University.
8. Blokhintsev, D., "Acoustics of a nonhomogeneous moving medium, " 1946, Translation (1956): NACA, Technical Memorandum 1399.
9. Kinsler, L., Frey, A., Coppens, A., and Sanders, J., Fundamentals of acoustics, John Wiley&Sons, 4th ed., 2000.