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Measurements of the Flow From a High Speed Compressor Rotor Using a Dual Probe Digital Sampling (DPDS) Technique FREE

[+] Author Affiliations
R. P. Shreeve, F. Neuhoff

Naval Postgraduate School, Monterey, CA

Paper No. 83-GT-215, pp. V001T01A059; 11 pages
doi:10.1115/83-GT-215
From:
  • ASME 1983 International Gas Turbine Conference and Exhibit
  • Volume 1: Turbomachinery
  • Phoenix, Arizona, USA, March 27–31, 1983
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-7951-1
  • Copyright © 1983 by ASME

abstract

The flow from a high speed rotor in a rotor-first arrangement has been measured using a “dual-probe, digital sampling (DPDS)” technique. The flow field was found to be steady in rotor coordinates (periodic in machine coordinates) outside the rotor wake, and 3 components of velocity and the pressure field were determined in this area. The wake regions were unsteady. In these regions the measurements based on ensemble averages of multiple samples did not follow the behavior established during calibration in steady uniform freejet flow except near the wake center. The broadening of the wake and three dimensional effects in the flow field were measured at reduced throttle and increased speeds. The results serve to illustrate the potential of the measurement technique, on which the emphasis of the presentation is placed.

Copyright © 1983 by ASME
This article is only available in the PDF format.

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