Measurement of Synchronous Forces and Flow Non-Uniformity in an Axial Compressor

Abstract

Time resolved pressure measurements on a compressor case were acquired for several uniform and non-uniform tip clearances. High frequency response pressure transducers were placed at several axial locations near the second stage axial rotor on the outer casing of an Allison C-250 compressor. Data were acquired at several fixed time intervals. The amplitude of the blade to blade variations and once per revolution static pressure distributions on the case were recorded for an as is compressor. The synchronous forces due to possible imperfections were determined using a high hub tip ratio assumption.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1997
Accession Number
ADA342761

Entities

People

  • Alvaro A. Cuellar

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Axial Flow Compressors
  • Compressors
  • Frequency
  • Frequency Response
  • Gas Turbines
  • Hydrodynamics
  • Measurement
  • Mechanical Engineering
  • Pressure Distribution
  • Pressure Measurement
  • Pressure Transducers
  • Static Pressure
  • Transducers
  • Turbines
  • Turbomachinery
  • Turboshaft Engines
  • Waveforms

Fields of Study

  • Physics

Readers

  • Aerodynamics.
  • Radar Systems Engineering.