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Cavitation Inception in Spool Valves

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Title Cavitation Inception in Spool Valves
 
Creator Martin, C. S.
Medlarz, H.
Wiggert, D. C.
Brennen, C.
 
Subject Caltech Library Services
 
Description 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 non-cavitating 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 non-cavitating spectral densities. The incipient cavitation number as defined in this investigation is correlated with the Reynolds number for both valves.
 
Publisher American Society of Mechanical Engineers
 
Contributor Morgan, W. B.
Parkin, Blaine R.
 
Date 1979-12
 
Type Book Section
PeerReviewed
 
Format application/pdf
 
Identifier http://authors.library.caltech.edu/220/1/MAR039.pdf
Martin, C. S. and Medlarz, H. and Wiggert, D. C. and Brennen, C. (1979) Cavitation Inception in Spool Valves. In: International Symposium on Cavitation Inception : presented at the ASME winter annual meeting, New York, New York, December 2-7, 1979. Fluids Engineering Division. American Society of Mechanical Engineers , New York, pp. 219-232. http://resolver.caltech.edu/CaltechAUTHORS:MARasmesci79 <http://resolver.caltech.edu/CaltechAUTHORS:MARasmesci79>
 
Relation http://resolver.caltech.edu/CaltechAUTHORS:MARasmesci79
http://authors.library.caltech.edu/220/