Experimental Evaluation of Double Circular Arc Cascade Performances PUBLIC ACCESS

[+] Author Affiliations
Gao Zhen-ya, Cheng Gang, Sun Yuan-ying

Shenyang Aeroengine Research Institute, Shenyang, The People’s Republic of China

Paper No. 82-GT-249, pp. V001T01A086; 7 pages
  • ASME 1982 International Gas Turbine Conference and Exhibit
  • Volume 1: Turbomachinery
  • London, England, April 18–22, 1982
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-7956-6
  • Copyright © 1982 by ASME


This paper presents a brief introduction of the test rig and the instrumentation, the test results and the preliminary analysis of variable passage cascades, and describes the effects of Axial Velocity Density Ratio (AVDR) on the major cascade performance parameters such as the incidence angle, deviation angle, critical Mach number and pressure loss. And the paper puts forward a correction method to take those effects into account. About 40 sets of the DCA cascade test data are correlated, the systematic calculation and process are made with the maximum critical Mach number as the datum point, and the correlative curves are given for design and analysis. The application of the correction method is described and the comparison is made between this method and the classical NASA method.

Copyright © 1982 by ASME
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