The effect of a baffle on acoustic radiation directivity

4th AIAA/CEAS Aeroacoustics Conference

Volumn , Issue , 1998, Pages 301-311

  Eversman, Walter ^a   Danda Roy, Indranil ^a  

^a University of Missouri Rolla   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

ACOUSTIC EMISSIONS; ACOUSTIC RADIATORS; ACOUSTIC WAVE PROPAGATION; ACOUSTIC WAVE TRANSMISSION; ACOUSTIC WAVES; AEROACOUSTICS; FINITE ELEMENT METHOD; GEOMETRY; RADIATION;

ACOUSTIC RADIATION; COMPUTATIONAL DOMAINS; DESTRUCTIVE INTERFERENCE; NON-UNIFORM POTENTIAL; PHASE ACCURACY; RADIATED FIELD; SPURIOUS REFLECTIONS; TURBOFAN INLETS;

ACOUSTIC FIELDS;

EID: 84977150503     PISSN: None     EISSN: None     Source Type: Conference Proceeding    
DOI: 10.2514/6.1998-2250     Document Type: Conference Paper

References (9)

1. Y. Ozyoruk and L. N. Long 1996 Journal of Computational Physics 125, 135-149. A new efficient algorithm for computational aeroacoustics on parallel processors.
2. W. Eversman, A. V. Parrett, J. S. Preisser, and R. J. Silcox 1985 ASME Journal of Vibration, Acoustics, Stress, and Reliability in Design 107(2), April, 1985, 216-223. Contributions to the finite element solution of the fan noise radiation problem.
3. A. V. Parrett and W. Eversman 1986 AIAA Journal 24(5), May, 1986, 753-760. Wave envelope and finite element approximations for turbofan noise radiation in flight.
4. I. Danda Roy and W. Eversman 1995 ASME Journal of Vibration and Acoustics 117(1), January, 1995,109-115. Improved finite element modeling of the turbofan engine inlet radiation problem.
5. J. S. Preisser, R. J. Silcox, W. Eversman, and A. V. Parrett 1985 Journal of Aircraft 22(1), January, 1985, 57-62. Flight study of induced turbofan inlet acoustic radiation with theoretical comparisons.
6. W. Eversman 1997 AIAA Paper 97-1648, An Improved Finite Element Formulation for Aft Fan Duct Acoustic Radiation, 3rd AIAA/CEAS Aeroacoustics Conference, Atlanta, GA, May 12-14, 1997.
7. P. Spence 1997 AIAA Paper 97-1651, Ducted Fan Noise Prediction Using Wave Envelope Analysis and the Kirchoff Formula, 3rd AIAA/CEAS Aeroacoustics Conference, Atlanta, GA, May 12-14,1997.
8. R. J. Astley, G. J. Macauley, J-P. Coyette, and L. Cremers 1998 Journal of the Acoustical Society of America 103(1). Three Dimensional Wave Envelope Elements of Variable Order for Acoustic Radiation and Scattering, Part I, Formulation in the Frequency Domain.
9. E. J. Rice and M. F. Heidmann 1979 AIAA Paper 79-0183 presented at the 17th Aerospace Sciences Meeting, New Orleans, Louisiana, January 15-17, 1979. Modal Propagation Angles in a Cylindrical Duct with Flow and their Relation to Sound Radiation.