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Behaviour of a Moving Droplet under Electrowetting Actuation: Numerical Simulation
Author(s) -
Mohseni K.,
Arzpeyma A.,
Dolatabadi A.
Publication year - 2006
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.5450840104
Subject(s) - electrowetting , volume of fluid method , mechanics , physics , materials science , voltage , flow (mathematics) , quantum mechanics
Numerical simulation of droplet transport in microchannels under electrostatic actuation is investigated. Volume‐of‐Fluid (VOF) technique is employed, in which electrowetting effects are implemented through Lippmann's relation in the form of modified contact angles at the boundary. A velocity of about 35 mm/s is achieved with the actuation of 40 V. The droplet flow under electrowetting actuation is characterized for the majority of the process parameters such as actuation voltage, channel dimension, electrode size, and resultant velocity.