Abstract
Fuel spray characteristics are affected by cavitation in fuel injector nozzles. We calculated the gas volume fractions of cavitation in nozzles and the liquid volume fractions of liquid jet based high-speed images of cavitation with two hole lengths nozzles and liquid jet. We quantitatively analyzed the sequential gas and liquid volume fractions in order to clarify deformation processes of liquid jet affected by cavitation. As a results, the difference of the nozzle hole lengths affects scale of cavitation clouds shedding near the hole exit and also scale of deformation of liquid jet boundaries between liquid jet and the ambient.
