Nonlinear Dynamics of Axial Flow Compressors: A Parametric Study

Abstract

This paper presents the analysis of the dynamics of a representative axial flow compressor model emphasizing the influence of two important control parameters. These are a nondimensional parameter B (previously introduced by Greitzer (1976) as a primary determinant of post-stall behavior) and the setting of the throttle line. Greitzer's lumped-parameter model is employed in this study, with a specific choice of compressor and throttle characteristics. Our analysis shows the presence of a rich variety of global as well as local bifurcations as the two control parameters are varied. The analysis leads to a characterization of compressor operation into three major zones: the stalled zone the pre-stall zone, and the normal (unstalled) zone. Simulation results demonstrate the qualitatively different dynamical behaviors within each regime of parameter space.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1991
Accession Number
ADA454865

Entities

People

  • Der-cherng Liaw
  • Eyad H. Abed
  • Raymond A. Adomaitis

Organizations

  • University of Maryland

Tags

DTIC Thesaurus Topics

  • Abstracts
  • Axial Flow
  • Axial Flow Compressors
  • Compressors
  • Dynamics
  • Flow
  • Information Operations
  • Nonlinear Dynamics
  • Universities

Readers

  • Aerodynamics.
  • Control Systems Engineering.
  • Theoretical Analysis.

Technology Areas

  • Space
  • Space - Hall-Effect Thruster
  • Space - Spacecraft Maneuvers