522 液滴の分裂・合体に関する高速撮影(OS9-3 光計測法,OS9 実験力学における新たな試み)

Abstract

The high-speed video camera of which frame rate is 1 M fps is applied to capturing of the evolution of the pinch-off of a drop and coalescence of two drops. Two types of experiments are conducted. At first, the pinch-off of water drop from a vertical nozzle is captured by the high-speed video camera. Some satellite drops are generated when the drop is produced from the nozzle. And micro jet is generated from the satellite drop. At second, the coalescence of two drops is captured by the high-speed video camera. The speed and shapes of the coalescence are evaluated from the images.