Development of the Larzac Engine Rig for Compressor Stall Testing

Abstract

The development and upgrade of test installations, instrumentation and the data acquisition system of an existing turbofan engine test rig are described for an experimental program which was planned and initiated to investigate the transient unsteady operation of gas turbine engines with an emphasis on compressor operation. The objective of the program was to examine aerodynamic instabilities such as stall and surge. Of particular interest were the pre-stall behaviour of the compressor and the generation and the detection of gas-path stall/surge precursors. Methods used to invoke compressor stall/surge and to detect stall/surge precursors are described and examples of results of the observed stall/surge phenomena and their precursors are included. However, the precursor pressure pulses are of small amplitude and occur only several milliseconds prior to the point of stall initiation. Additional work is required to incorporate these results in a practical stall warning device.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 2011
Accession Number
ADA561772

Entities

People

  • A. M. Abdel-fattah
  • A. S. Vivian

Organizations

  • Defence Science and Technology Group

Tags

Communities of Interest

  • Air Platforms
  • Materials and Manufacturing Processes
  • Sensors
  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Flow
  • Aircrafts
  • Compressors
  • Control Systems
  • Data Acquisition
  • Detection
  • Fluid Flow
  • Gas Turbines
  • Instrumentation
  • Jet Engines
  • Measurement
  • Pressure Measurement
  • Pressure Transducers
  • Turbine Components
  • Turbines
  • Turbofan Engines
  • Turbojet Engines

Readers

  • Aerodynamics.
  • Aerospace Engineering
  • Combustion Dynamics and Shock Wave Physics.