Accession Number:

ADA029494

Title:

Characterization of Sudden-Expansion Dump Combustor Flowfields.

Descriptive Note:

Final rept. 1 Jul 75-30 Jun 76,

Corporate Author:

AIR FORCE AERO PROPULSION LAB WRIGHT-PATTERSON AFB OHIO

Personal Author(s):

Report Date:

1976-07-01

Pagination or Media Count:

67.0

Abstract:

Basic flowfield studies pertinent to an axisymmetric, sudden-expansion dump combustor have been performed under cold flow conditions. These studies have included surface flow visualization, pressure probing, and gas sampling within a representative combustor duct. Flow visualization tests, which were performed using a surface oil flow technique, graphically demonstrated the complex nature of the flow recirculationreattachment region downstream of the dump station. Detailed measurements of wall static pressure, flow static pressure, and flow total pressure were made for the combustor flowfield. Gas concentration measurements of simulated fuel argonair mixing were made in the combustor duct using a unique on-line, real-time gas samplinganalysis system. The results obtained from this particular research effort have provided additional insight into the complexities of dump combustor flowfields. Author

Subject Categories:

  • Fluid Mechanics
  • Jet and Gas Turbine Engines
  • Solid Propellant Rocket Engines

Distribution Statement:

APPROVED FOR PUBLIC RELEASE