Turbofan exhaust noise using helium/air mixture to simulate core temperature

Collection of Technical Papers - 10th AIAA/CEAS Aeroacoustics Conference

Volumn 3, Issue , 2004, Pages 2439-2449

  Long, D F ^a,b  

^a Aero Systems Engineering   (United States)

^b Technology Development   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

AIR SUPPLY; EXIT PLANES; MACH NUMBER; PRIMARY FLOW;

ACOUSTIC NOISE; COMPUTER SIMULATION; HIGH TEMPERATURE EFFECTS; MATHEMATICAL MODELS; MIXTURES; NOZZLES; SPECIFIC HEAT; WIND TUNNELS;

TURBOFAN ENGINES;

EID: 19944373093     PISSN: None     EISSN: None     Source Type: Conference Proceeding    
DOI: None     Document Type: Conference Paper

References (7)

1. 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.
2. Long, D.F. "Wind Tunnel Tests of Turbofan Exhaust System Noise at Cruise Conditions," AIAA 2004-0007, January 2004.
3. Kinzie, K.W., McLaughlin, D.K., "Measurements of Supersonic Helium/Air Mixture Jets," AIAA Journal, Vol. 37, No 11, 1999, Pg1363.
4. Debiasi, M., Papamoschou, D., "Noise from Imperfectly Expanded Supersonic Coaxial Jets," AIAA Journal, Vol. 39, No. 3, 2001, pgs 388-395.
5. Brown, G.L. and Roshko, A. "On Density Effects and Large Structure in Turbulent Mixing Layers," J. Fluid Mech. Vol. 64, 1974, pg 775
6. Long, D.F. "A Nozzle Test Stand for Simultaneous Measurement of Thrust and Radiated Noise," AIAA 1998-3108, 1998.
7. Federal Aviation Regulation, Part 36 "Noise Standards: Aircraft Type and Airworthiness Certification."