GAS TURBINE ENGINE EXHAUST NOISE

The sources of noise which emanate from the exhaust of a gas turbine engine are discussed. The most important of these are considered to be associated with the combustion system, the turbine, the exhaust system, obstructions, and the turbulence/noise interaction with the jet structure. Also considered is the jet mixing noise due to single and coaxial streams. Wherever possible, prediction methods for these sources are given and reviewed. Reflections from the ground are also reviewed. Finally, the effects of flight or forward speed on these noise sources are considered.

• Supplemental Notes:
  • AGARD Lecture Series, Aerodynamic Noise, at von Karman Inst Meet, Rhode St., Genese, Belgium, December 6-9, 1976.
• Corporate Authors:

  Advisory Group Aerospace Research and Development

  7 Rue Ancelle
  92 Neuilly-sur-Seine,   France 
• Authors:
  • Bushell, K W
• Publication Date: 1977-1

Media Info

• Features: References;
• Pagination: 35 p.

Subject/Index Terms

• TRT Terms: Aircraft; Airspeed; Combustion; Engines; Exhaust gases; Forecasting; Gas turbines; Jet propelled aircraft; Noise; Noise sources; Turbine engines
• Uncontrolled Terms: Aircraft engines; Exhaust noise
• Old TRIS Terms: Flight speeds
• Subject Areas: Aviation; Environment; Vehicles and Equipment;

Filing Info

• Accession Number: 00172756
• Record Type: Publication
• Source Agency: Engineering Index
• Report/Paper Numbers: No. 80, Paper 4
• Files: TRIS
• Created Date: Apr 12 1978 12:00AM