MODEL STUDY OF A PROPOSED ENGINEERING ACOUSTIC RESEARCH FACILITY

ETUDE SUR MODELE D'UN PROJET D'INSTALLATION DE RECHERCHES EN GENIE ACOUSTIQUE

A one-twelfth scale aeroacoustic model of a proposed engineering acoustic research facility has been tested to assess the background noise levels in the anechoic measurement area, and to develop a suitable exhaust collector for deflected jet conditions. The facility comprises an open circuit, open jet wind tunnel with an anechoic space surrounding the test section. Collector configurations with acceptably low background noise and low sensitivity to jet deflection have been defined, but these features were achieved at the expense of some aerodynamic efficiency. (Author)

• Corporate Authors:

  National Research Council of Canada

  Division of Mechanical Engineering, Montreal Road
  Ottawa, ONo K1A 0R6,   Canada 
• Authors:
  • Johnston, G W
  • Rueter, F
  • Chappell, M S
• Publication Date: 1976-7

Media Info

• Pagination: 29 p.

Subject/Index Terms

• TRT Terms: Acoustics; Aircraft noise; Anechoic chambers; Jet engines; Landing; Mathematical models; Measurement; Noise; Research and educational facilities; STOL aircraft; Takeoff; Test facilities; VTOL aircraft
• Uncontrolled Terms: Models
• Geographic Terms: Canada
• Old TRIS Terms: Aeroacoustic models; Aircraft landing; Background noise; Jet engine noise; Research facilities; Short takeoff aircraft
• Subject Areas: Aviation; Environment; Terminals and Facilities;

Filing Info

• Accession Number: 00146024
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: DME-ME-243, NRC-15480
• Files: TRIS
• Created Date: Jan 16 1977 12:00AM