A Preliminary Study of Annular Diffusers With Constant Diameter Outer Walls (Suitable for Turbine Exits) PUBLIC ACCESS

[+] Author Affiliations
R. C. Adkins

Cranfield Institute of Technology, Cranfield, Bedford, England

O. H. Jacobsen

Norges Tekniske Hogskole Universitet I - Trondheim, Trondheim, Norway

P. Chevalier

Ecole Nationale Superieure De L’Aeronautique et De L’Espace, Toulouse, France

Paper No. 83-GT-218, pp. V001T01A061; 8 pages
  • 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


A systemmatic series of tests has been conducted on a family of annular diffusers where the outer casing is maintained at constant diameter. Such a diffuser is typical of turbine exits. Data, in the form of static pressure recovery coefficient is plotted against diffuser length for several different designs of centerbody closure.

It has been shown that such diffusers can have short length centerbodies for which a set of design guides has been established.

Copyright © 1983 by ASME
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