Pseudo-Leidenfrost phenomenon of low surface tension droplet induced by external aerodynamic field

Droplet regulation has significant application potential in many fields; however, conventional controlling methods make it difficult to effectively control low surface tension droplets. Inspired by the Leidenfrost phenomenon, a pseudo-Leidenfrost system was established innovatively through micro-airflow rather than evaporated vapor lift droplet. Both experimental and numerical studies were carried out investigate effect of FC3283 (perfluorotripropylamine) By FC3283, is an extremely working medium with thermal stability at room temperature. The oscillation droplet vertical direction analyzed tracking position centroid. velocity pressure distributions bottom droplet, which similar revealed. mechanical analysis period analyzed. Besides, phenomenon FC40 [FC-40 FluorinertTM Electronic Liquid] droplets various Weber number investigated. conditions for triggering results showed that motion could be divided into three stages: falling, hovering, rising. In hovering stage, Laplace force played important role, main reason rebound while role aerodynamic keep on gas film. had influence phenomenon: small tended absorbed micropores, too large would cause suspend or even leave. This study helpful laying foundation transportation