Break-up induced by the collapse of laser-generated cavitation bubbles in a liquid jet
Konferensbidrag (offentliggjort, men ej förlagsutgivet), 2020

In this paper, the effect of artificially introduced cavitation bubble collapse on jet break-up was studied. Laser-induced cavitation bubbles were introduced into the jet at the exit of a scaled-up nozzle. Shadow images of the jet or spray were recorded by a high-speed video camera. The break-ups, which were induced by bubble collapse, were measured, compared and analyzed under different injection pressures and bubble generating positions. The study shows how the collapsing laser-induced cavitation bubbles outside of the nozzle affect jet break-up. The break-ups were categorized into two characteristic types. The distance of the laser focus to the center axis of the nozzle was found to be the main factor that determined the type of break-up.

cavitation

Spray

atomization

break-up

Författare

Jiayi Zhou

Chalmers, Mekanik och maritima vetenskaper, Förbränning och framdrivningssytem

Mats Andersson

Chalmers, Mekanik och maritima vetenskaper, Förbränning och framdrivningssytem

14th Triennial International Conference on Liquid Atomization and Spray Systems, ICLASS 2018
Chicago, USA,

Drivkrafter

Hållbar utveckling

Ämneskategorier

Strömningsmekanik och akustik

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Senast uppdaterat

2020-09-21