加熱液面上で自己推進するライデンフロスト液滴の可視化計測

抄録

In recent years, development of non-contact fluid control has attracted attention for transporting liquid sample in the fields of biology, chemistry, pharmaceutical and food science. Most of the existing researches deal with the interaction with the non-heated liquid surface and the heated and non-heated solid surface. Although it is of great importance to better understand the droplet dynamics on the heated liquid surface, contactless droplet manipulation on the heated liquid pool has not been well investigated. In this study, we aim to experimentally investigate the levitated and self-propelled droplet on the heated liquid surface with droplet evaporation. In the present paper, we study the effect of the temperature difference between the liquid pool and the droplet and the Marangoni effect associated with self-propelled droplet. This paper describes the critical condition of the levitation and self-propulsion of droplet by visualization of droplet behavior and temperature field.