0
RESEARCH PAPERS

Cavitation Inception in Spool Valves

[+] Author and Article Information
C. Samuel Martin

School of Civil Engineering, Georgia Institute of Technology, Atlanta, Ga.

H. Medlarz

Institute for Hydromechanics, University of Karlsruhe, Karlsruhe, West Germany

D. C. Wiggert

Department of Civil Engineering, Michigan State University, East Lansing, Mich.

C. Brennen

Department of Mechanical Engineering, California Institute of Technology, Pasadena, Calif.

J. Fluids Eng 103(4), 564-575 (Dec 01, 1981) (12 pages) doi:10.1115/1.3241768 History: Received March 18, 1980; Online October 26, 2009

Abstract

Cavitation has been investigated in directional control valves in order to identify damage mechanisms characteristic of components of aircraft hydraulic systems. Tests have been conducted in a representative metal spool valve and in a model three times larger. Data taken under noncavitating conditions with both valves showed that the position of the high-velocity annular jet shifts orientation, depending upon valve opening and Reynolds number. By means of high-frequency response pressure transducers strategically placed in the valve chamber cavitation could be sensed by the correlation of noise with a cavitation index. The onset of cavitation can be detected by comparing energy spectra for a fixed valve opening and a constant discharge. Another sensitive indicator of cavitation inception is the ratio of cavitating to noncavitating spectral densities. The incipient cavitation number as defined in this investigation is correlated with the Reynolds number for both valves.

Copyright © 1981 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