Generic 1D Dynamic Modeling of a Gas Generator Engine PUBLIC ACCESS

[+] Author Affiliations
A. Solomon

Pratt & Whitney Canada Inc., Mississauga, ON, Canada

Paper No. 97-GT-028, pp. V004T15A005; 9 pages
  • ASME 1997 International Gas Turbine and Aeroengine Congress and Exhibition
  • Volume 4: Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education; IGTI Scholar Award
  • Orlando, Florida, USA, June 2–5, 1997
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-7871-2
  • Copyright © 1997 by ASME


A physics based one-dimensional generic non linear dynamic model for a gas generator engine which is expected to enable future model based system oriented activities such as system control design, engine dynamic analysts, variable geometry optimization, air bleed extraction optimization, active surge and/or rotating stall avoidance control is presented. The model can be easily partitioned to obtain a one-dimensional compressor dynamic model which can simulate onset and development of surge and demonstrate existence of rotating stall. The notion of surge domain is introduced and it is shown how the dynamic model can quantitatively predict it. Other model predictions such as surge frequency and air bleed extractions are compared with experimental results.

Copyright © 1997 by ASME
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