Evaluation of Conical Diffuser Performance FREE

[+] Author Affiliations
Ajit Thakker

National Institute of Higher Education, Limerick, Ireland

Paper No. 85-IGT-27, pp. V001T02A010; 7 pages
  • ASME 1985 Beijing International Gas Turbine Symposium and Exposition
  • Volume 1: Aircraft Engine; Turbomachinery
  • Beijing, People’s Republic of China, September 1–7, 1985
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-7942-9
  • Copyright © 1985 by ASME


Experimental datas were used to observe how the overall picture of the diffuser performance is affected by the presence of two different kind of swirl. The theoretical model considered were Cockrell & Markland (4), Sovran & Klomp (5), and Tyler & Williamson (6). In the case of Sovran & Klomp, the theoretical analysis used was one extended by Thakker (1) to take account of 2-D flow. It was found that the performance of the conical diffusers is best improved for a diffuser of total cone angle of 10 and 20 degrees by optimum Rankine vortex addition, and for cone angle of 30 degree by “solid-body” swirl 3.

Copyright © 1985 by ASME
Topics: Diffusers
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