Abstract Moving contact lines are involved in several engineering applications: in-flight icing phenomenon, the eventual transition from droplet to rivulet or continuous film regime is crucial for prediction of ice accretion over aircraft surface; absorption process through structured packing also characterized by a thin flowing corrugated sheets. Disjoining pressure together with assumption pr...

Flow visualization with high-speed video of evaporating water films falling over flat horizontal tubes, representative of the external surfaces of microchannel tubes, is presented. Experiments were conducted with 1.4 mm thick and 27 mm tall tubes over a film Reynolds number range of 23 < Re < 126. In addition to a qualitative description of the flow mechanisms, this work quantifies key droplet ...

The collision behavior and ice formation of a water droplet are affected by its falling process. In this paper, the two-phase flow air at specific temperature is adopted to investigate processes freezing single droplet. To track air–water interface distribution, level-set method non-isothermal coupling used, model added into water’s control equations. numerical results indicated that with initi...

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 carr...