The influence of contact line velocity and acceleration on the dynamic contact angle: An experimental study in microgravity [PDF]
, 2011 In this study, a novel experimental method by using the short-time microgravity condition created by the drop tower facility is proposed to investigate the dependence of dynamic contact angle on both the velocity and acceleration of contact line.
徐升华 +4 more
core +1 more source
Volume and Frequency-Independent Spreading of Droplets Driven by Ultrasonic Surface Vibration
Fluids, 2020 Many industrial processes depend on the wetting of liquids on various surfaces. Understanding the wetting effects due to ultrasonic vibration could provide a means for changing the behavior of liquids on any surface.
Matthew Trapuzzano +3 more
doaj +1 more source
Numerical approximations for a phase-field moving contact line model with variable densities and viscosities [PDF]
Journal of Computational Physics, 2017 We consider the numerical approximations of a two-phase hydrodynamics coupled phase-field model that incorporates the variable densities, viscosities and moving contact line boundary conditions.
Haijun Yu, Xiao-Feng Yang
semanticscholar +1 more source
Dissipation in dynamics of a moving contact line [PDF]
Physical Review E, 2001 The dynamics of the deformations of a moving contact line is studied assuming two different dissipation mechanisms. It is shown that the characteristic relaxation time for a deformation of wavelength $2π/|k|$ of a contact line moving with velocity $v$ is given as $τ^{-1}(k)=c(v) |k|$.
Golestanian, R. ; https://orcid.org/0000-0002-3149-4002 +1 more
openaire +6 more sources
Catenoid Stability with a Free Contact Line [PDF]
SIAM Journal on Applied Mathematics, 2015 Contact-drop dispensing is central to many small-scale applications, such as direct-scanning probe lithography and micromachined fountain-pen techniques. Accurate and controllable dispensing required for nanometer-resolved surface patterning hinges on the stability and breakup of liquid bridges.
Amir Akbari +2 more
openaire +3 more sources
The role of the microscale contact line dynamics in the wetting behaviour of complex fluids
Archives of Mechanics, 2015 The microscale morphology of the liquid-substrate contact line is studied experimentally in two well-known examples of dynamic wetting with complex fluids (namely, drop impact of dilute polymer solutions and spreading of superspreader surfactant ...
D. Biolè, V. Bertola
doaj +1 more source
Chemocapillary instabilities of a contact line [PDF]
Physical Review E, 2010 8 pages, 4 figures; corrected version of the published ...
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Transition in a numerical model of contact line dynamics and forced dewetting [PDF]
Journal of Computational Physics, 2017 We investigate the transition to a Landau–Levich–Derjaguin film in forced dewetting using a quadtree adaptive solution to the Navier–Stokes equations with surface tension.
S. Afkhami +6 more
semanticscholar +1 more source
On the Moving Contact Line Singularity [PDF]
Doklady Physics, 2019 Given that contact line between liquid and solid phases can move regardless how negligibly small are the surface roughness, Navier slip, liquid volatility, impurities, deviations from the Newtonian behavior, and other system- dependent parameters, the problem is treated here from the pure hydrodynamical point of view only.
openaire +3 more sources
A miniature non-circular line gear with pure-rolling contact
Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2021 The design of pure-rolling gear has always been a subject of intense research, because in some working conditions, such as dry friction, pure-rolling gear has higher transmission efficiency and less possibility of transmission failure. Non-circular gears
Xiaoping XIAO +3 more
doaj +1 more source