English
 
User Manual Privacy Policy Disclaimer Contact us
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT

Released

Journal Article

Dynamic Leidenfrost effect: Relevant time and length scales.

MPS-Authors
/persons/resource/persons192998

Lohse,  Detlef
Max Planck Institute for Dynamics and Self-Organization, Max Planck Society;

Fulltext (public)
There are no public fulltexts stored in PuRe
Supplementary Material (public)
There is no public supplementary material available
Citation

Shirota, M., van Limbeek, M. A. J., Sun, C., Prosperetti, A., & Lohse, D. (2016). Dynamic Leidenfrost effect: Relevant time and length scales. Physical Review Letters, 116(6): 064501. doi:10.1103/PhysRevLett.116.064501.


Cite as: http://hdl.handle.net/11858/00-001M-0000-002A-3B85-7
Abstract
When a liquid droplet impacts a hot solid surface, enough vapor may be generated under it to prevent its contact with the solid. The minimum solid temperature for this so-called Leidenfrost effect to occur is termed the Leidenfrost temperature, or the dynamic Leidenfrost temperature when the droplet velocity is non-negligible. We observe the wetting or drying and the levitation dynamics of the droplet impacting on an (isothermal) smooth sapphire surface using high-speed total internal reflection imaging, which enables us to observe the droplet base up to about 100 nm above the substrate surface. By this method we are able to reveal the processes responsible for the transitional regime between the fully wetting and the fully levitated droplet as the solid temperature increases, thus shedding light on the characteristic time and length scales setting the dynamic Leidenfrost temperature for droplet impact on an isothermal substrate.