scholarly journals Electrowetting diminishes contact line friction in molecular wetting

2020 ◽  
Vol 5 (6) ◽  
Author(s):  
Petter Johansson ◽  
Berk Hess
Keyword(s):  
Contact Line ◽  
Contact Line Friction

scholarly journals Experimental study of the contact line friction coefficient

2020 ◽  
Vol 1677 ◽  
pp. 012156
Author(s):  
N Sibiryakov ◽  
W Zheng ◽  
O Kabov ◽  
B Bai
Keyword(s):  
Experimental Study ◽  
Friction Coefficient ◽  
Contact Line ◽  
Contact Line Friction

Contact-Line Friction of Liquid Drops on Self-Assembled Monolayers:  Chain-Length Effects

Langmuir ◽  
2007 ◽  
Vol 23 (9) ◽  
pp. 4695-4699 ◽  
Author(s):  
M. Voué ◽  
R. Rioboo ◽  
M. H. Adao ◽  
J. Conti ◽  
A. I. Bondar ◽  
...  
Keyword(s):  
Chain Length ◽  
Contact Line ◽  
Self Assembled Monolayers ◽  
Liquid Drops ◽  
Assembled Monolayers ◽  
Self Assembled ◽  
Contact Line Friction ◽  
Length Effects

The dynamics of three-dimensional liquid bridges with pinned and moving contact lines

2012 ◽  
Vol 707 ◽  
pp. 521-540 ◽  
Author(s):  
Shawn Dodds ◽  
Marcio S. Carvalho ◽  
Satish Kumar
Keyword(s):  
Contact Line ◽  
Liquid Bridge ◽  
Stokes Equations ◽  
Three Dimensional ◽  
Liquid Bridges ◽  
Contact Lines ◽  
Flat Surfaces ◽  
Moving Contact ◽  
Moving Contact Lines ◽  
Contact Line Friction

AbstractLiquid bridges with moving contact lines are relevant in a variety of natural and industrial settings, ranging from printing processes to the feeding of birds. While it is often assumed that the liquid bridge is two-dimensional in nature, there are many applications where either the stretching motion or the presence of a feature on a bounding surface lead to three-dimensional effects. To investigate this we solve Stokes equations using the finite-element method for the stretching of a three-dimensional liquid bridge between two flat surfaces, one stationary and one moving. We first consider an initially cylindrical liquid bridge that is stretched using either a combination of extension and shear or extension and rotation, while keeping the contact lines pinned in place. We find that whereas a shearing motion does not alter the distribution of liquid between the two plates, rotation leads to an increase in the amount of liquid resting on the stationary plate as breakup is approached. This suggests that a relative rotation of one surface can be used to improve liquid transfer to the other surface. We then consider the extension of non-cylindrical bridges with moving contact lines. We find that dynamic wetting, characterized through a contact line friction parameter, plays a key role in preventing the contact line from deviating significantly from its original shape as breakup is approached. By adjusting the friction on both plates it is possible to drastically improve the amount of liquid transferred to one surface while maintaining the fidelity of the liquid pattern.

Weak solutions to thin-film equations with contact-line friction

2017 ◽  
Vol 19 (2) ◽  
pp. 243-271 ◽  
Author(s):  
Maria Chiricotto ◽  
Lorenzo Giacomelli
Keyword(s):  
Thin Film ◽  
Contact Line ◽  
Weak Solutions ◽  
Thin Film Equations ◽  
Contact Line Friction

Contact Line Friction in Liquid–Liquid Displacement on Hydrophobic Surfaces

2011 ◽  
Vol 115 (50) ◽  
pp. 24975-24986 ◽  
Author(s):  
Melanie Ramiasa ◽  
John Ralston ◽  
Renate Fetzer ◽  
Rossen Sedev
Keyword(s):  
Contact Line ◽  
Hydrophobic Surfaces ◽  
Contact Line Friction ◽  
Liquid Displacement

scholarly journals Scaling laws for droplets spreading under contact-line friction

2013 ◽  
Vol 11 (2) ◽  
pp. 361-383 ◽  
Author(s):  
Maria Chiricotto ◽  
Lorenzo Giacomelli
Keyword(s):  
Contact Line ◽  
Scaling Laws ◽  
Contact Line Friction
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