Accession Number:

AD0783864

Title:

Analytical Investigation of Transient Diffuser Wave Phenomena.

Descriptive Note:

Master's thesis,

Corporate Author:

NAVAL POSTGRADUATE SCHOOL MONTEREY CALIF

Personal Author(s):

Report Date:

1974-06-01

Pagination or Media Count:

76.0

Abstract:

A computer program was developed to solve the quasi-one-dimensional, unsteady flow problem associated with starting phenomena in various nozzle-short diffuser combinations of interest to gas dynamic lasers. The program was based on the techniques developed by George Rudinger in his book, Wave Diagrams for Nonsteady Flow in Ducts. The techniques were modified to facilitate a fixed grid for computational ease. The program was used to analyze the starting transients of a Mach 3 nozzle with a semi-wedge diffuser. Results indicated that for a given inletexhaust pressure ratio, diffuser starts could be obtained at higher ramp angles for thin diffusers than for thick diffusers. Author

Subject Categories:

  • Lasers and Masers
  • Computer Programming and Software
  • Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE