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|Condensation-induced jumping water drops|
|Authors: ||Narhe, R.D. (Ramchandra D.)|
Khandkar, M.D. (M. D.)
Shelke, P.B. (P. B.)
Limaye, A.V. (A.V.)
Beysens, D.A. (Daniel A.)
|Issue Date: ||2009|
|Publisher: ||Physical Review E|
Water droplets can jump during vapor condensation on solid benzene near its melting point. This phenomenon,
which can be viewed as a kind of micro scale steam engine, is studied experimentally and numerically.
The latent heat of condensation transferred at the drop three phase contact line melts the substrate during a time
proportional to R the drop radius . The wetting conditions change and a spontaneous jump of the drop results
in random direction over length 1.5R, a phenomenon that increases the coalescence events and accelerates
the growth. Once properly rescaled by the jump length scale, the growth dynamics is, however, similar to that
on a solid surface.
|Permanent link: ||http://hdl.handle.net/10171/4104|
|Appears in Collections:||DA - Ciencias - Física - Artículos de Revista|
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