0

Full Content is available to subscribers

Subscribe/Learn More  >

Backflow From Inducer and Its Dynamics

[+] Author Affiliations
Yoshinobu Tsujimoto, Hironori Horiguchi, Xiangyu Qiao

Osaka University, Toyonaka, Osaka, Japan

Paper No. FEDSM2005-77381, pp. 1483-1494; 12 pages
doi:10.1115/FEDSM2005-77381
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

The present paper summarizes recent studies on the dynamics of backflow vortex structure associated with cavitation instabilities in turbopump inducers. First, the cause of cavitation instabilities is discussed. Various methods for the suppression of cavitation instabilities are then reviewed to illustrate the importance of backflow vortex cavitation on instabilities. The characteristics of backflow vortices are described based on experimental observations. Calculations based on the k-ε turbulence model are used for clarifying the mechanisms of inlet backflow and its response to flow rate fluctuations. Backflow vortex structure is simulated by LES calculations on a simplified geometry. Cavity volume is estimated from the volume of the regions with the pressure lower than the vapour pressure and its response to flow rate fluctuation is clarified. From the results obtained, the effects of backflow vortex cavitation on cavitation instabilities are discussed.

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