Cavitation inception in quiescent and co-flow nozzle jets

William A. Straka, Richard S. Meyer, Arnold Anthony Fontaine, Joseph P. Welz

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

The prediction and scaling of cavitation inception in jets remains a difficult task. This paper presents findings of an experimental investigation to study the cavitation inception of quiescent and co-flow submerged jets. Experimental data were collected in the ARL/PSU 12-inch and 48-inch Diameter Water Tunnels. A submerged nozzle was mounted axially along the centerline of the test section with jet mass flow supplied using an external pump. The setup allowed for independent control of both jet and freestream velocities. Observations of cavitation patterns, inception locations and cavitation inception numbers for quiescent (VR=V/Vjet=0), near-quiescent (0<VR<0.1) and co-flow (VR>0.1) operating conditions were recorded. Data were measured using two- 25.4mm and one- 101.6mm diameter axisymmetric nozzles. Visual observations of cavitation indicated that the cavitation occurs in different location for co-flow jets compared to quiescent jets. PIV measurements show that different flow mechanisms are responsible for this cavitation inception.

Original languageEnglish (US)
Pages (from-to)813-819
Number of pages7
JournalJournal of Hydrodynamics
Volume22
Issue number5 SUPPL. 1
DOIs
StatePublished - Jan 1 2010

Fingerprint

jet nozzles
nozzle flow
Cavitation
Nozzle
cavitation flow
Nozzles
Jet Flow
nozzles
hydraulic test tunnels
visual observation
virtual reality
jet flow
mass flow
particle image velocimetry
Tunnel
Experimental Investigation
Pump
Tunnels
Experimental Data
Pumps

All Science Journal Classification (ASJC) codes

  • Modeling and Simulation
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Straka, William A. ; Meyer, Richard S. ; Fontaine, Arnold Anthony ; Welz, Joseph P. / Cavitation inception in quiescent and co-flow nozzle jets. In: Journal of Hydrodynamics. 2010 ; Vol. 22, No. 5 SUPPL. 1. pp. 813-819.
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Cavitation inception in quiescent and co-flow nozzle jets. / Straka, William A.; Meyer, Richard S.; Fontaine, Arnold Anthony; Welz, Joseph P.

In: Journal of Hydrodynamics, Vol. 22, No. 5 SUPPL. 1, 01.01.2010, p. 813-819.

Research output: Contribution to journalArticle

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