0
RESEARCH PAPERS

Swirling Flow Through Annular Diffusers With Conical Walls

[+] Author and Article Information
R. P. Lohmann, S. J. Markowski

United Technologies Corporation, Pratt and Whitney Aircraft Group, Commercial Products Division, East Hartford, Conn. 06108

E. T. Brookman

The Research Corporation of New England, Wethersfield, Conn.

J. Fluids Eng 101(2), 224-229 (Jun 01, 1979) (6 pages) doi:10.1115/1.3448939 History: Received October 19, 1978; Online October 12, 2010

Abstract

The performance of a series of diffusers of various lengths, area ratios and cant angles was determined experimentally over a range of inlet flow swirl angles between axial and 48 degrees. The results indicate that increases in the inlet swirl angle and the cant angle, particularly in combination, lead to increased distortion of the meridional velocity profile at the diffuser exit. With a swirling throughflow separation occurs at the inner wall and is encountered at progressively lower area ratios as the inlet swirl angle is increased. The tangential component of the flow is relatively independent of the meridional flow in that the angular momentum is essentially conserved and a high degree of similarity is found in these profiles at the diffuser exit.

Copyright © 1979 by ASME
Your Session has timed out. Please sign back in to continue.

References

Figures

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In