0

Full Content is available to subscribers

Subscribe/Learn More  >

Flow Structure of an Axial-Flow Pump From Stable Operation to Deep Stall

[+] Author Affiliations
G. Kosyna, I. Goltz, U. Stark

TU Braunschweig, Braunschweig, Germany

Paper No. FEDSM2005-77350, pp. 1389-1396; 8 pages
doi:10.1115/FEDSM2005-77350
From:
  • ASME 2005 Fluids Engineering Division Summer Meeting
  • Volume 1: Symposia, Parts A and B
  • Houston, Texas, USA, June 19–23, 2005
  • Conference Sponsors: Fluids Engineering Division
  • ISBN: 0-7918-4198-7 | eISBN: 0-7918-3760-2
  • Copyright © 2005 by ASME

abstract

Different experimental techniques were used to investigate the structure of the rotor tip flow in a highly-loaded single-stage axial-flow pump. Probably the most important result of this investigation is the first-time visualization of a spiral-type vortex breakdown in an axial-flow turbomachine. The occurrence of the breakdown leads to a rapid expansion of the clearance vortex in stream wise, span wise and pitch wise direction and this has a major impact on stall inception. In deep stall the rotor tip flow is dominated by the well-known part load recirculation vortex as well as by a lesser-known cross passage vortex. Furthermore, the paper presents a simple but very effective type of casing treatment, which stabilizes the pump head characteristic completely.

Copyright © 2005 by ASME

Figures

Tables

Interactive Graphics

Video

Country-Specific Mortality and Growth Failure in Infancy and Yound Children and Association With Material Stature

Use interactive graphics and maps to view and sort country-specific infant and early dhildhood mortality and growth failure data and their association with maternal

NOTE:
Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

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 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