Accession Number:

ADA023343

Title:

Flow Characteristics in a Gas Dynamic Laser Type Multiple Nozzle-Diffuser Assembly.

Descriptive Note:

Master's thesis,

Corporate Author:

AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OHIO SCHOOL OF ENGINEERING

Personal Author(s):

Report Date:

1974-12-01

Pagination or Media Count:

62.0

Abstract:

Schlieren photographs and pressure measurements were used to study the flow characteristics in a Mach 3.35 ideal multiple nozzle-diffuser assembly similar to that of a gas dynamic laser. The assembly consisted of 14 full nozzles with a half nozzle at each end of the array. Air at 80 deg. F and a maximum of 110 psig was passed through the nozzles into a constant area section and then through a convergent diffuser to ambient conditions. Boundary layer control was provided at each end of the test cavity by accelerating the boundary layer with nitrogen injected parallel to the end walls. A variety of single throat diffusers were used to start the test cavity.

Subject Categories:

  • Lasers and Masers
  • Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE