Propulsion System Flow Stability Program (Dynamic). Part X. Combustion Instability Model Program User's Manual.

Abstract

This volume (Part X) contains detailed descriptions and operating instructions for two computer programs, HLMHLT and REFINE. Together, these programs comprise a numerical method of solution of a model of combustion instability in aircraft engine afterburners and duct burners. The model was developed in Phase 1 and is described in AFAPL-TR-68-142, Part XII, Unsteady Combustion in Duct Burners, Propulsion System Flow Program (Dynamic), Phase 1, Final Technical Report. Computer program HLMHLT consists of a general acoustics analysis of cylindrical and annular ducts with heat addition and with acoustic losses (or gains) at the boundaries. This program is applicable to a wide variety of problems, including those involving unsteady combustion. Computer program REFINE determines the effects of unsteady combustion and through-flow on the basic acoustic characteristics of the duct. These effects are used to modify the results of the acoustics analysis provided by Program HLMHLT. (Author)

Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1970
Accession Number
AD0866556

Entities

People

  • E. Karl Bastress
  • George E. Smith

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Acoustics
  • Aircraft Engines
  • Aircrafts
  • Combustion
  • Computer Programs
  • Computers
  • Engineering
  • Engines
  • Instability
  • Mechanical Engineering
  • Propulsion Systems

Fields of Study

  • Physics

Readers

  • Combustion science or combustion engineering.
  • Computer Science.
  • Wave Propagation and Nonlinear Chaotic Dynamics.