Wave envelope and finite element approximations for turbofan noise radiation in flight

AIAA Journal

Volumn 24, Issue 5, 1986, Pages 753-760

  Parrett, A V ^a   Eversman, W ^b  

^a GENERAL MOTORS CORPORATION   (United States)

^b MISSOURI UNIVERSITY OF SCIENCE AND TECHNOLOGY   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

ACOUSTIC WAVES - PROPAGATION; AIRCRAFT ENGINES - NOISE; EQUATIONS OF MOTION; MATHEMATICAL TECHNIQUES - FINITE ELEMENT METHOD;

ACOUSTICAL ANALYSIS; FORWARD PROPAGATING NOISE; IN FLIGHT TURBOFAN NOISE RADIATION; WAVE ENVELOPE APPROXIMATION;

AIRCRAFT ENGINES, JET AND TURBINE;

EID: 0022715895     PISSN: 00011452     EISSN: None     Source Type: Journal    
DOI: 10.2514/3.9342     Document Type: Article

References (12)

1. Astley, R. J. and Eversman, W., “A Finite Element Method for Transmission in Non-Uniform Ducts without Flow: Comparison with the Method of Weighted Residuals,” Journal of Sound and Vibration, Vol. 57, No. 3, 1978, pp. 367-388.
2. Majjigi, R. K., Sigman, R. K., and Zinn, B. T., “Wave Propagation in Ducts using the Finite Element Method,” AIAA Paper 79-0695, 1979.
3. Tag, I. and Lumsdaine, E., “An Efficient Finite Element Solution for Sound Propagation in Axisymmetric Hard Walled Ducts Carrying High Subsonic Mach Number Flows,” AIAA Paper 78-1154, 1978.
4. Horowitz, S. J-, Sigman, R. K., and Zinn, B. T., “An Iterative Finite Element-Integral Technique for Predicting Sound Radiation from Turbofan Inlets in Steady Flight,” AIAA Paper 82-0124, 1982.
5. Horowitz, S. J., Sigman, R. K., and Zinn, B. T., “An Iterative Finite Element-Integral Technique for Predicting Sound Radiation from Turbofan Inlets,” AIAA Paper 81-1987, 1981.
6. Astley, R. J. and Eversman, W., “Finite Element Formulations for Acoustical Radiation,” Journal of Sound and Vibration, Vol. 88, No. 1, 1983, pp. 47-64.
7. Astley, R. J., “Acoustical Radiation in Moving Flows: A Finite Element Approach,” Proceedings of the 1983 International Conference on Computational Techniques and Applications, Sydney, Australia, 1983, pp. 685-698.
8. Becker, E., Carey, G. F., and Oden, J. T., Finite Elements: An Introduction, Prentice-Hall, Inc., Englewood Cliffs, NJ, 1981.
9. Taylor, K., “Acoustic Generation by Vibrating Bodies in Homentropic Potential Flow at Low Mach Number,” Journal of Sound and Vibration, Vol. 65, No. 1, 1979, pp. 125-136.
10. Astley, R. J. and Eversman, W., “A Finite Elment Formulation for the Eigenvalue Problem in Lined Ducts with Flow,” Journal of Sound and Vibration, Vol. 65, No. 1, 1979, pp. 61-74.
11. Silcox, R. J., “Experimental Investigation of Geometry and Flow Effects on the Acoustic Radiation from Duct Inlets,” AIAA Paper 83-0713, 1983.
12. Preisser, J. S., Silcox, R. J., Eversman, W., and Parrett, A. V., “A Flight Study of Tone Radiation Patterns Generated by Inlet Rods in a Small Turbofan Engine,” AIAA Paper 84-0499, 1984.