Research on Noise Generated by Ducted Air-Fuel Combustion Systems.

Abstract

The development of a jet noise facility to study the interaction of the flow with bluff bodies inside the duct resulting in more intense noise than is expected from the jet itself is described. The long range objective is to use the information on noise due to bluff bodies and non-steady combustion inside the duct to relate their relative importance as a source of noise in an aircraft jet engine. The construction of the flow system and anechoic chamber is described. An analytical model is developed which incorporates sources of noise both inside and outside the engine. (Author)

Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1972
Accession Number
AD0754094

Entities

People

  • Edelbert G. Plett
  • Martin Summerfield

Organizations

  • Princeton University

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Acoustic Absorption
  • Aircrafts
  • Anechoic Chambers
  • Buildings And Structures
  • Chambers
  • Chemical Reactions
  • Combustion
  • Construction
  • Engines
  • Exothermic Reactions
  • Ignition
  • Jet Engines

Fields of Study

  • Physics

Readers

  • Acoustics.
  • Combustion and Flow Dynamics.
  • Fluid Dynamics.