Break-up induced by the collapse of laser-generated cavitation bubbles in a liquid jet
Paper in proceedings, 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.

break-up

Spray

cavitation

atomization

Author

Jiayi Zhou

Chalmers, Mechanics and Maritime Sciences, Combustion and Propulsion Systems

Mats Andersson

Chalmers, Mechanics and Maritime Sciences, Combustion and Propulsion Systems

ICLASS 2018 - 14th International Conference on Liquid Atomization and Spray Systems

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

Driving Forces

Sustainable development

Subject Categories

Fluid Mechanics and Acoustics

More information

Latest update

12/18/2020