Avalanche of particles in evaporating coffee drops

@inproceedings{Marin2010AvalancheOP,
  title={Avalanche of particles in evaporating coffee drops},
  author={Alvaro Marin and Hanneke Gelderblom and Jacco H. Snoeijer and Detlef Lohse},
  year={2010}
}
The pioneering work of Deegan et al. [Nature 389, (1997)] showed how a drying sessile droplet suspension of particles presents a maximum evaporating flux at its contact line which drags liquid and particles creating the well known coffee stain ring. In this Fluid Dynamics Video, measurements using micro Particle Image Velocimetry and Particle Tracking clearly show an avalanche of particles being dragged in the last moments, for vanishing contact angles and droplet height. This explains the… Expand
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References

American Physical Society : Division of Fluid Dynamics
  • Nature
  • 1948
THE Division of Fluid Dynamics of the American Physical Society, which was established by the Council of the American Physical Society in June 1947, has been organised, and the following have beenExpand