Bulletin of the American Physical Society
APS March Meeting 2011
Volume 56, Number 1
Monday–Friday, March 21–25, 2011; Dallas, Texas
Abstract: S1.00224 : Drop evaporation and triple line dynamics
Author:
Sessile drop evaporation is a phenomenon commonly came across in
nature or
in industry with cooling, paintings or DNA mapping. However, the
evaporation
of a drop deposited on a substrate is not completely understood
due to the
complexity of the problem. Here we investigate, with several
nano-coating of
the substrate (PTFE, SiOx, SiOc and CF), the influence of the
dynamic of the
triple line on the evaporation process. The experiment consists
in analyzing
simultaneously the motion of the triple line, the kinetics of
evaporation,
the internal thermal motion and the heat and mass transfer.
Measurements of
temperature, heat-flux and visualizations with visible and
infrared cameras
are performed. The dynamics of the evaporative heat flux appears
clearly
different depending of the motion of the triple line
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2011.MAR.S1.224
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