✦ LIBER ✦
An analytical model for micro-droplet steady movement on the hydrophobic wall of a micro-channel
✍ Scribed by Liang Hao; Ping Cheng
- Publisher
- Elsevier Science
- Year
- 2010
- Tongue
- English
- Weight
- 365 KB
- Volume
- 53
- Category
- Article
- ISSN
- 0017-9310
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✦ Synopsis
Based on a macroscopic force balance analysis, an analytical solution in terms of dynamic contact angle is obtained for steady velocity of a 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.