Wettability effects on contact line dynamics of droplet motion in an inclined channel

Randive, P and Dalal, A and Sahu, K C and Biswas, G and Mukherjee, P P (2015) Wettability effects on contact line dynamics of droplet motion in an inclined channel. Physical Review E, 91 (5). ISSN 1539-3755

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Abstract

The present work discusses the implications of wall wettability and inclination of the surface on droplet dynamics. In this work, mesoscopic illustration of droplet dynamics in a duct with different inclination angles, based on the two-phase lattice Boltzmann model, is reported. Temporal evolution of wetted length, wetted area, and maximum height of the droplet for surfaces with different inclination angles and wettabilities is furnished in detail in order to elucidate the droplet displacement dynamics. It has been observed that the effect of inclination of the surface on droplet dynamics is more pronounced on a hydrophobic surface as compared to a hydrophilic surface. The time evolution of height and contact line motion of the droplet shows that higher angle of inclination of substrate affects the dynamics strongly irrespective of wettability.

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IITH Creators:
IITH CreatorsORCiD
Sahu, K Chttp://orcid.org/0000-0002-7357-1141
Item Type: Article
Uncontrolled Keywords: Drops; Dynamics; Hydrophobicity; Surface chemistry; Two phase flow; Wetting Contact line motion; Contact-line dynamics; Displacement dynamics; Hydrophilic surfaces; Hydrophobic surfaces; Inclination angles; Lattice boltzmann models; Temporal evolution
Subjects: Chemical Engineering > Biochemical Engineering
Divisions: Department of Chemical Engineering
Depositing User: Team Library
Date Deposited: 25 May 2015 06:36
Last Modified: 10 Jul 2017 11:56
URI: http://raiith.iith.ac.in/id/eprint/1523
Publisher URL: https://doi.org/10.1103/PhysRevE.91.053006
OA policy: http://www.sherpa.ac.uk/romeo/issn/1539-3755/
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