Results 21 to 30 of about 84,000 (298)
Observation of contact angle hysteresis due to inhomogeneous electric fields
Wetting of surfaces can be affected by surface roughness, presence of surface chemical defects, or by electric fields. Here, the authors perform electrowetting experiments on microstriped electrodes and show that the droplet’s static contact angle ...
Wei Wang +3 more
doaj +1 more source
In recent times, the utilization of three-dimensional (3D) printing technology, particularly a variant using digital light processing (DLP), has gained increasing fascination in the realm of microfluidic research because it has proven advantageous and ...
Jeon-Woong Kang +4 more
doaj +1 more source
Effect of contact angle hysteresis on thermocapillary droplet actuation [PDF]
Open microfluidic devices based on actuation techniques such as electrowetting, dielectrophoresis, or thermocapillary stresses require controlled motion of small liquid droplets on the surface of glass or silicon substrates.
Chen, Jian Z. +3 more
core +1 more source
Studying of the Contact Angle Hysteresis on Various Surfaces
This paper is devoted to investigation of the contact angle hysteresis on various surfaces. It was carried out by two different methods: measuring the advancing and the receding contact angles and measuring the contact angles at water droplet evaporation
Kirichenko E. O., Gatapova E. Ya.
doaj +1 more source
The Role of Contact Angle Hysteresis for Fluid Transport in Wet Granular Matter [PDF]
The stability of sand castles is determined by the structure of wet granulates. Experimental data about the size distribution of fluid pockets are ambiguous about their origin.
Brinkmann, Martin +5 more
core +2 more sources
Lattice Boltzmann modeling of contact angle and its hysteresis in two-phase flow with large viscosity difference [PDF]
Contact angle hysteresis is an important physical phenomenon omnipresent in nature and various industrial processes, but its effects are not considered in many existing multiphase flow simulations due to modeling complexity.
Ju, Yaping +4 more
core +1 more source
There is inevitably an angular offset during contact of mechanical structures such as roller bearings or gears. Most of the previous contact models involve the contact between two parallel cylinders.
Tieneng Guo, Ruguo Ji, Yunfei Ma
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Water-Repellency and Anisotropic Wettability of Micro-Grooved Polymer Surfaces [PDF]
Superhydrophobicity and anisotropic wettability can be simultaneously achieved by simple groove pattern on a surface. To verify those characteristics experimentally, we fabricated the micro-grooved surfaces with four different groove widths.
Daehee Kwon, Unyoung Ko, Sangmin Lee
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Plastron induced drag reduction and increased slip on a superhydrophobic sphere [PDF]
On low contact angle hysteresis superhydrophobic surfaces, droplets of water roll easily. It is intuitively appealing, but less obvious, that when such material is immersed in water, the liquid will flow more easily across its surface.
Balmert +42 more
core +1 more source
As a new display technology, electrowetting display (EWD) has many excellent display characteristics, such as paper-like, low power consumption, quick response and full color.
Li Wang +7 more
doaj +1 more source

