THERMAL SCIENCE

International Scientific Journal

Ezddin Hutli

,

Omer Alteash

,

Mostafa Ben Raghisa

,

Miloš S. Nedeljković

,

Vojislav Ilić

APPEARANCE OF HIGH SUBMERGED CAVITATING JET: THE CAVITATION PHENOMENON AND SONO LUMINESCENCE

ABSTRACT
In order to study jet structure and behaviour of cloud cavitation within time and space, visualization of highly submerged cavitating water jet has been done using Stanford Optics 4 Quick 05 equipment, through endoscopes and other lenses with Drello3244 and Strobex Flash Chadwick as flashlight stroboscope. This included obligatory synchronization with several types of techniques and lenses. Images of the flow regime have been taken, allowing calculation of the non-dimensional cavitation cloud length under working conditions. Consequently a certain correlation has been proposed. The influencing parameters, such as; injection pressure, downstream pressure and cavitation number were experimentally proved to be very significant. The recordings of sono-luminescence phenomenon proved the collapsing of bubbles everywhere along the jet trajectory. In addition, the effect of temperature on sono-luminescence recordings was also a point of investigation. [Projekat Ministarstva nauke Republike Srbije, br. TR35046]
KEYWORDS
nozzle, cavitating jet, cavitation, time-synchronization, sono-luminescence, cloud length, jet dynamic power
PAPER SUBMITTED: 2012-09-25
PAPER REVISED: 2013-04-15
PAPER ACCEPTED: 2013-04-22
PUBLISHED ONLINE: 2013-05-05
DOI REFERENCE: https://doi.org/10.2298/TSCI120925046H
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2013, VOLUME 17, ISSUE Issue 4, PAGES [1151 - 1161]
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Appearance of high submerged cavitating jet: The cavitation phenomenon and sono luminescence

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