0

Full Content is available to subscribers

Subscribe/Learn More  >

Computation of Cavitation Inception Number for Surface Irregularities

[+] Author Affiliations
Eduard Amromin

Mechmath LLC, Edmond, OK

Paper No. FEDSM2003-45314, pp. 215-221; 7 pages
doi:10.1115/FEDSM2003-45314
From:
  • ASME/JSME 2003 4th Joint Fluids Summer Engineering Conference
  • Volume 1: Fora, Parts A, B, C, and D
  • Honolulu, Hawaii, USA, July 6–10, 2003
  • Conference Sponsors: Fluids Engineering Division
  • ISBN: 0-7918-3696-7 | eISBN: 0-7918-3673-8
  • Copyright © 2003 by ASME

abstract

Computation of cavitation inception number for isolated surface irregularities is performed with the assumption that cavitation bubbles appear in vortices located within viscous separation zones behind these irregularities. The numerical analysis consists of four parts. The first part is determination of the base pressure within separation zone and irregularity drag by using viscous-inviscid interaction concept for an obstacle in non-uniform incoming flow. This part is validated by the well-known experimental data for cavitation-free flows behind backward-facing steps and within specially designed wind tunnels (by Tani et al {1] and Agarwal & Simpson [2]). The second part is determination of vortex intensity by using the base pressure and drag in an empirical formula. The third part is determination of vortex viscous core from an asymptotic solution of Reynolds equation for the vicinity of a vortex in the turbulent flow. The fourth part is calculation of cavitation inception number for a bubble with taking into account the surface tension effect. The suggested theoretical concept and numerical technique are validated by comparison with measurements for irregularities over flat walls and 2D hydrofoils (by Arndt et al [3] and Holl et al [4]).

Copyright © 2003 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