Published 12 issues per year
ISSN Print: 1044-5110
ISSN Online: 1936-2684
Indexed in
TWO-STEP START TRANSIENTS WITH LONG FEEDLINES DISCHARGING LIQUID THROUGH SHARP-EDGED CYLINDRICAL NOZZLES
ABSTRACT
Start transients of liquids flowing through sharp-edged cylindrical nozzles in a feedline nozzle assembly are investigated. A quasi-steady regime of reduced flow rate is shown to precede the full flow when the nozzle flow velocities are near the threshold values corresponding to the inception of cavitation. The duration of the diminished quasi-steady flow is further seen to correspond to the characteristic response time of the nozzle—feedline assembly. The disturbances generated during the characteristic response time of the system are shown to advance the onset of the cavitated flow and give rise to the initial phase of reduced flow rate.
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Ramamurthi K., Nandakumar K., Patnaik R. K., Characteristics of Sprays Formed by Impingement of a Pair of Liquid Jets, Journal of Propulsion and Power, 20, 1, 2004. Crossref
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Ku K.W., Hong J.G., Effect of Flow Structure Inside Nozzle on the Liquid Jet Breakup of Elliptical Nozzle, Journal of ILASS-Korea, 18, 1, 2013. Crossref