Abstract
Liquid micro-jets are applied to many devices such as inkjet printing and automotive engines. For example, for engine applications, liquid atomization is an important process to improve fuel consumption. High-speed jet tip behavior is important to understand the liquid atomization. However, physical mechanisms of the atomization process have still not been clarified. Hence, in this study, we observed the liquid jet flow using the high-speed video camera. Especially we focus on the jet flow just after the injection from the nozzle. In this paper, we developed high-speed droplet injector using syringe. Furthermore, we discussed a shape of the jet tip by changing velocities and diameters of liquid jet.
