Enhanced sound absorption through negative bias flow

5th AIAA/CEAS Aeroacoustics Conference and Exhibit

Volumn , Issue , 1999, Pages 536-546

  Cataldi, P ^a,b   Ahuja, K K ^a,c,d   Gaeta, R J ^a,e  

^a GEORGIA INSTITUTE OF TECHNOLOGY   (United States)

^b School of Aerospace Engineering   (United States)

^c AE School   (United States)

^d Acoustics and Aerodynamics Branch of GTRI Aerospace and Transportation Laboratory   (United States)

^e GTRI Aerospace and Transportation Laboratory   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

AEROACOUSTICS; AERODYNAMICS; DEGREES OF FREEDOM (MECHANICS); FLOW VELOCITY; INSERTION LOSSES; MACH NUMBER; NATURAL FREQUENCIES; ORIFICES; POROSITY; SOUND INSULATING MATERIALS;

ABSORPTION CO-EFFICIENT; FREQUENCY RANGES; HELMHOLTZ RESONATORS; HIGHER FREQUENCIES; LOWER FREQUENCIES; MARGINAL EFFECTS; SOUND ABSORPTION; TWO-DEGREE OF FREEDOM;

ACOUSTIC WAVE ABSORPTION;

EID: 84983121631     PISSN: None     EISSN: None     Source Type: Conference Proceeding    
DOI: 10.2514/6.1999-1879     Document Type: Conference Paper

References (6)

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2. Dean, P. D. and Tester, B.J. Duct Wall Impedance Control as an Advanced Concept for Acoustic Transmission, NASA Contractor Rept. CR-134998, Nov, 1975.
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4. Blevins, R.D. Formulas for Natural Frequency and Mode Shape Published by Robert E. Krieger Publishing Co., Inc, 1984.
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6. Nayfeh, A., Kaiser, J. and Telionis, D. Acoustics of Aircraft Eneine-Duct Systems. AIAA Journal, Vol. 13, No. 2, Feb 1975.