Spatially Resolved Compressor Characteristics for Modeling and Control of Blade-Scale Flow Instabilities

Abstract

A numerical technique capable of simulating blade-scale compression system flow instabilities over times scales spanning tens of rotor revolutions is presented. Simulations of stall inception and growth to fully developed rotating stall, and evidence for hysteresis, secondary instabilities, and other nonlinear phenomena are presented. Signal processing techniques for flow asymmetry characterization are discussed in the context of obtaining low-order representations of the flow disturbances with the ultimate goal of active stall suppression.

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Document Details

Document Type
Technical Report
Publication Date
Dec 19, 1995
Accession Number
ADA445795

Entities

People

  • Raymond A. Adomaitis

Organizations

  • University of Maryland

Tags

Communities of Interest

  • Advanced Electronics
  • Air Platforms
  • Energy and Power Technologies
  • Space

DTIC Thesaurus Topics

  • Abstracts
  • Amplitude
  • Barometric Pressure
  • Compression
  • Compressors
  • Computational Science
  • Eigenvectors
  • Equations
  • Instability
  • Measurement
  • Navier Stokes Equations
  • Parallel Processors
  • Signal Processing
  • Simulations
  • Simulators
  • Static Pressure
  • Universities

Fields of Study

  • Physics

Readers

  • Control Systems Engineering.
  • Fluid Dynamics.
  • Radar Systems Engineering.