Accession Number:

ADA109848

Title:

Aerodynamic and Acoustic Tests of a 1/15 Scale Model Dry Cooled Jet Aircraft Runup Noise Suppression System,

Descriptive Note:

Corporate Author:

FLUIDYNE ENGINEERING CORP MINNEAPOLIS MN

Report Date:

1975-10-01

Pagination or Media Count:

309.0

Abstract:

This report presents the results of 115 scale model tests conducted a to verify the acoustical and cooling air pumping performance of a full-scale, in aircraft, Hush House type of dry sound suppressor designed for the F-14 aircraft, and b to provide additional design information usable for future Hush House suppressor designs. The model was fabricated and tested by FluiDyne Engineering Corp., Minneapolis, Minn. Testing took place in FluiDynes Medicine Lake Laboratory, utilizing an arrangement of two reverberant rooms for sound power level, PWL, measurements one representing the Hush House interior, and the other representing the out-of-doors. The design of the reverberant rooms, the design of the model scale sound absorbing surfaces, and the measurement and analysis of noise data were carried out by personnel from Bolt, Beranek and Newman, Waltham, Mass. The test program was divided into four parts a jet survey, aero-acoustic testing, aero-thermal testing, and acoustic testing.

Subject Categories:

  • Test Facilities, Equipment and Methods
  • Acoustics
  • Electric and Ion Propulsion

Distribution Statement:

APPROVED FOR PUBLIC RELEASE