Investigation of acoustical shielding by a wedge-shaped airframe

Journal of Sound and Vibration

Volumn 294, Issue 1-2, 2006, Pages 49-63

  Gerhold, Carl H ^a   Clark, Lorenzo R ^a   Dunn, Mark H ^b   Tweed, John ^b  

^a NASA LANGLEY RESEARCH CENTER   (United States)

^b OLD DOMINION UNIVERSITY   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

AIRCRAFT ENGINES; AIRFOILS; AIRFRAMES; MATHEMATICAL MODELS; SHIELDING;

BLENDED WING BODY (BWB); BOUNDARY INTEGRAL EQUATION METHOD (BIEM); EQUIVALENT SOURCE METHOD (ESM);

ACOUSTIC WAVE PROPAGATION;

EID: 33646512850     PISSN: 0022460X     EISSN: 10958568     Source Type: Journal    
DOI: 10.1016/j.jsv.2005.10.010     Document Type: Article

References (12)

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2. Dunn M.H., Tweed J., and Farassat F. The application of a boundary integral equation method to the prediction of ducted fan engine noise. Journal of Sound and Vibration 227 5 (1999) 1019-1048
3. H.H. Hubbard, J.C. Manning, Aeroacoustic Research Facilities at NASA Langley Research Center, NASA TM 84585, March, 1983.
4. C.H.Gerhold, L.R. Clark, Database of Inlet and Exhaust Noise Shielding for a Wedge-Shaped Airframe, NASA/TM-2001-210840, April 2001.
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6. Ochmann M. The source simulation technique for acoustic radiation problems. Acustica 81 (1995) 512-527
7. Koopmann G., Song L., and Fahnline J. A method for computing acoustic fields based on the principal of wave superposition. Journal of the Acoustical Society of America 86 (1989) 2433-2438
8. Kropp W., and Svensson P.U. Application of time domain formulation of the method of equivalent sources to radiation and scattering problems. ACUSTICA 81 (1995) 528-543
9. Holste F. An equivalent source method for calculation of the sound radiated from aircraft engines. Journal of Sound and Vibration 203 4 (1997) 667-695
10. Tinetti A.F., Dunn M.H., and Pope D.S. Fast Scattering Code (FSC) User Manual (2004), NASA Publication
11. M.H. Dunn, TBIEM3D-A Computer Program for Predicting Ducted Fan Engine Noise, Version 1.1. NASA/CR-97-206232, 1997.
12. E.J. Rice, M.F. Heidmann, T.G. Sofrin, Modal propagation angles in a cylindrical duct with flow and their relation to sound radiation, AIAA 79-0183, presented at 17th AIAA Aerospace Sciences Meeting, New Orleans, January 15-17, 1979.