Journal
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
Volume 53, Issue 5-6, Pages 1243-1246Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijheatmasstransfer.2009.11.010
Keywords
Analytical model; Droplet; Movement; Lattice Boltzmann method; Dynamic contact angle
Categories
Funding
- National Natural Science Foundation of China [50536010]
- Shanghai Municipal Science and Technology Commission [08JC1411100]
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Based on a macroscopic force balance analysis, an analytical solution in terms of dynamic contact angle is obtained for steady velocity of droplet driven by a shear flow and moving on the hydrophobic wall of a microchannel. The multiphase free-energy 3-D Lattice Boltzmann method (LBM) is applied to simulate the deformation of the droplet in order to obtain the dynamic contact angle of the moving micro-droplet in the analytical solution The droplet velocities predicted by the analytical solution are found in good agreement with the LBM simulation results. (C) 2009 Elsevier Ltd All rights reserved.
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