Effect of nozzle geometry on turbofan shock cell noise at cruise

43rd AIAA Aerospace Sciences Meeting and Exhibit - Meeting Papers

Volumn , Issue , 2005, Pages 9655-9666

  Long, D F ^a,b  

^a Aero Systems Engineering   (United States)

^b Technology Development   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

FUSELAGE; NOISE LEVELS; NOZZLE GEOMETRY; SHOCK CELL NOISE;

ACOUSTIC NOISE; COMPUTATIONAL GEOMETRY; EXHAUST GASES; TURBOFAN ENGINES; WIND TUNNELS;

NOZZLES;

EID: 30744471147     PISSN: None     EISSN: None     Source Type: Conference Proceeding    
DOI: None     Document Type: Conference Paper

References (8)

1. Nesbitt, E. Newsum, S., Podleski, S., Su, M., Lewis, M. " Application of CFD Predictions to Evaluate Shock Associated Noise of Engine Exhausts," AIAA-1999-1925, 1999.
2. Serafini, J. S., "Wall Pressure Fluctuations and Pressure-Velocity Correlations in a Turbulent Boundary Layer," NASA TR R-165, 1963.
3. Long, D.F. "Turbofan Exhaust Noise Using Helium/Air Mixture to Simulate Core Temperature," AIAA 2004-3018, May 2004.
4. Kinzie, K.W., McLaughlin, D.K., "Measurements of Supersonic Helium/Air Mixture Jets," AIAA Journal, Vol. 37, No 11, 1999, Pg1363.
5. Debiasi, M., Papamoschou, D., "Noise from Imperfectly Expanded Supersonic Coaxial Jets," AIAA Journal, Vol. 39, No. 3, 2001, pgs 388-395.
6. Saiyed, N., Mikkelsen, K. Bridges, J. "Acoustics and Thrust of Quiet Separate-Flow High-Bypass-Ratio Nozzles," AIAA Journal, Vol. 41, #3, 2003, Pg 372-378.
7. Brooks, T.F., Humphreys, W.M., "Effect of Directional Array Size on the Measurement of Airframe Noise Components," AIAA 1999-1958, May, 1999.
8. Gaster, M., and Roberts, J.B., "Spectral Analysis of Randomly Sampled Signals," J. Inst. of Mathematics and its Applications, Vol. 15, Pg 195-216, 1975.