音場浮遊液滴の微粒化挙動の発生機構の解明

抄録

We investigated the interfacial behavior and atomization of an acoustically levitated droplet. It is vital to understand the non-linear dynamic behavior of the acoustically levitated droplet in order to apply acoustic levitation method to the various scientific fields such as a material processing and analytical chemistry. The purpose of our study is to elucidate the generation mechanism of interfacial instability on the acoustically levitated droplet experimentally. In this paper, we recorded its time evolution from the interfacial deformation to atomization by high speed video camera and estimated quantitatively with three different liquid samples. Additionally, we investigated the detail of the atomization of the water droplet for better understanding of the atomization process. Our experimental data was compared with the existing theory. It is shown that the mechanism of the atomization of the levitated droplet is more complicated than the existing model indicated by the theory.