Liquid Jet Deformation Induced by Cavitation in Nozzles of Various Shapes

Event
9th International Conference on Engines and Vehicles
Authors Abstract
Content
Cavitation in the nozzles of various shapes and liquid jets discharged from the nozzles are visualized using a high-speed camera to investigate the effects of cavitation on liquid jet deformation. Cylindrical nozzles and two-dimensional (2D) nozzles of various upstream diameters and length-to-diameter ratios (L/D) are used. For simultaneous high-speed visualizations of cavitation and a jet, a tilted acrylic plate is placed in front of the jets injected through the 2D nozzles, while three mirrors are used to capture both the front view of the jet injected through a cylindrical nozzle and the side view of cavitation. The visualizations confirm that the collapse of a cavitation cloud near the exit induces a ligament formation in 2D and cylindrical nozzles of various L/Ds. Although no vapor film is formed in short nozzles, cavitation clouds are shed near the exit and induce ligaments. It is also confirmed that the modified cavitation number, which takes into account the effects of flow contraction and frictional pressure drop, can be used to predict the development of cavitation in nozzles of various shapes.
Meta TagsDetails
DOI
https://doi.org/10.4271/2009-24-0157
Pages
9
Citation
Sou, A., "Liquid Jet Deformation Induced by Cavitation in Nozzles of Various Shapes," SAE Int. J. Engines 2(2):694-702, 2010, https://doi.org/10.4271/2009-24-0157.
Additional Details
Publisher
Published
Sep 13, 2009
Product Code
2009-24-0157
Content Type
Journal Article
Language
English