Accession Number:

ADA030639

Title:

Model Study of a Proposed Engineering Acoustic Research Facility (Etude sur Modele d'un Projet d'Installation de Recherches en Genie Acoustique)

Descriptive Note:

Corporate Author:

NATIONAL ACADEMY OF SCIENCES-NATIONAL RESEARCH COUNCIL WASHINGTON DC MINE ADVISORY COMMITTEE

Report Date:

1976-07-01

Pagination or Media Count:

33.0

Abstract:

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.

Subject Categories:

  • VSTOL
  • Test Facilities, Equipment and Methods
  • Acoustics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE