This paper describes a method for evaluating, through experimental results, the compressible volumetric fraction released by a liquid mass crossing a cavitating control valve, by means of some remarks on the values of the pressure drops. It is known that the relationship, valid in fully developed flow with no cavitation occurrence, used for estimating the loss coefficient K falls when the cavitation phenomenon appears and the reason of this behaviour is to be find in the different capacity to dissipate of the arisen compressible portion of flow.
Experimental evaluation of the compressible portion of a liquid flow crossing a cavitating control valve / Fratino, Umberto; Piccinni, Alberto Ferruccio. - STAMPA. - (1997), pp. 314-319. (Intervento presentato al convegno 27th Congress of the International Association for Hydraulic Research, XXVII IAHR tenutosi a San Francisco, CA nel August 10-15, 1997).
Experimental evaluation of the compressible portion of a liquid flow crossing a cavitating control valve
Fratino, Umberto;Piccinni, Alberto Ferruccio
1997-01-01
Abstract
This paper describes a method for evaluating, through experimental results, the compressible volumetric fraction released by a liquid mass crossing a cavitating control valve, by means of some remarks on the values of the pressure drops. It is known that the relationship, valid in fully developed flow with no cavitation occurrence, used for estimating the loss coefficient K falls when the cavitation phenomenon appears and the reason of this behaviour is to be find in the different capacity to dissipate of the arisen compressible portion of flow.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
