Accession Number:

ADA070995

Title:

A New Type Flap Valve for Generating Sonic Booms in a Pyramidal Horn.

Descriptive Note:

Interim rept.,

Corporate Author:

TORONTO UNIV DOWNSVIEW (ONTARIO) INST FOR AEROSPACE STUDIES

Report Date:

1978-10-01

Pagination or Media Count:

82.0

Abstract:

A description is given of the design, operation and performance of a radically new type of sonic-boom generating flap-valve. Included are the ancillary cam, clutch, flywheel and electric motor system, as well as a much larger air reservoir than used previously. An updated and greatly extended analysis describes the time varying reservoir conditions e.g., pressure and mass-flow rate of air through the flap valve, as well as the wave motion or characteristics of the travelling N-wave in the pyramidal concrete horn 25 m long with a 3 m x 3 m base of the UTIAS travelling-wave sonic-boom simulation facility. Author

Subject Categories:

  • Test Facilities, Equipment and Methods
  • Acoustics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE