Accession Number:

AD0752603

Title:

Evaluation of Test Data on Jet Engine Combustion Burn-Through Flames

Descriptive Note:

Final rept. 4 May-4 Jul 1971

Corporate Author:

AEROCHEM RESEARCH LABS INC PRINCETON NJ

Personal Author(s):

Report Date:

1972-03-01

Pagination or Media Count:

49.0

Abstract:

A method is developed to interpret flat plate impingement pressure and temperature data taken in jet engine combustor burn-through flames in terms of free stream velocities, pressures, temperatures, etc. These flames, which are high-temperature, turbulent, underexpanded sonic jets, are caused, in practice, by the combustion gases impinging on and burning a hole through the wall of the combustor. The free stream property data are needed to compute local heat transfer coefficients, which must be known to determine whether potential firewall materials can withstand a burn-through flame. Turbulent convective heat transfer coefficients are computed herein, primarily to determine radiation and conduction corrections to the temperature measurements.

Subject Categories:

  • Combustion and Ignition
  • Jet and Gas Turbine Engines

Distribution Statement:

APPROVED FOR PUBLIC RELEASE