Abstract
The flow structure induced by the droplet impacting on liquid surface in a liquid tank was studied. This study focuses properties inside the tank induced by the two-phase jet flow during the aeration process. As an underlying process of the flow phenomena whereby the two-phase jet flow falls to the free surface and produces a circulating flow in the tank, we chose to examine the phenomena just after a droplet falls into the gas-liquid interface. This was done in practice by observations using high speed video, experimental modeling, and also by numerical analysis. Subsequently, we could gain insights into the influence of a drop or two drops impacting on the gas-liquid surface. This basic data can clarify the mechanism of the flow in the tank.
