Results 11 to 20 of about 83,275 (200)

Effect of contact angle hysteresis on measuring matric suction in unsaturated sandy soil

open access: yesGeomatics, Natural Hazards & Risk, 2023
The contact angle plays an important role in matric suction of unsaturated soils, but few studies consider the effect of contact angle hysteresis on matric suction. In this paper, taking sandy soil as an example, the influence of contact angle hysteresis
Chuan Zhang   +7 more
doaj   +1 more source

Surface mobility and structural transitions of poly(n-alkyl methacrylates) probed by dynamic contact angle measurements [PDF]

open access: yes, 1986
Dynamic contact angles and contact-angle hysteresis of a series of poly(n-alkyl methacrylates) (PAMA) were investigated using the Wilhelmy plate technique.
Damme, H.S. van, Feijen, J., Hogt, A.H.
core   +9 more sources

Modeling the deformation and breakup of a surfactant-coated droplet on a roughness solid surface in shear flow

open access: yesAIP Advances, 2022
A surfactant-coated droplet attached to a rough wall subjected to shear flow is investigated using a coupled lattice Boltzmann with the finite difference method, where a contact angle hysteresis model is introduced into the method to characterize the ...
Dapeng Deng   +3 more
doaj   +1 more source

Effects of Contact Angle on the Hysteresis Effect of Soil-Water Characteristic Curves during Dry-Wet Cycles

open access: yesAdvances in Civil Engineering, 2021
The hysteresis characteristics of soil-water characteristic curves (SWCCs) under dry-wet cycling conditions are very important for understanding unsaturated soil properties, so it is crucial to propose an accurate and efficient method for predicting the ...
Gaoliang Tao   +4 more
doaj   +1 more source

Determination of the hysteresis of the contact angle of wetting of boiling surfaces [PDF]

open access: yesE3S Web of Conferences, 2023
For a deeper understanding of the fluid dynamics and heat transfer in the transition layer, when studying the dynamics of a two-phase flow during boiling and a heat transfer crisis, i.e.
Bykovskaya Elena F.   +1 more
doaj   +1 more source

The Possibility of Changing the Wettability of Material Surface by Adjusting Gravity

open access: yesResearch, 2020
The contact angle, as a vital measured parameter of wettability of material surface, has long been in dispute whether it is affected by gravity. Herein, we measured the advancing and receding contact angles on extremely low contact angle hysteresis ...
Yong-Ming Liu   +14 more
doaj   +1 more source

Apparent contact angle and contact angle hysteresis on liquid infused surfaces [PDF]

open access: yesSoft Matter, 2017
The apparent contact angle and contact angle hysteresis of a droplet on liquid infused surfaces have strong dependence on the relative size between the droplet and its surrounding wetting ridge.
Ciro Semprebon   +2 more
openaire   +5 more sources

Measuring Surface Tensions of Soft Solids with Huge Contact-Angle Hysteresis

open access: yesPhysical Review X, 2021
The equilibrium contact angle of a droplet resting on a solid substrate can reveal essential properties of the solid’s surface. However, when the motion of a droplet on a surface shows significant hysteresis, it is generally accepted that the solid’s ...
Jin Young Kim   +5 more
doaj   +1 more source

Development of a Contact Force Model Suited for Spherical Contact Event

open access: yesActuators, 2023
The stiffness coefficient suited for a spherical contact body is developed by means of a contact semi-angle based on Steuermann’s theory. The new static contact force model is close to the results of FEM when the index of the polynomial is equal to 2 ...
Siyuan Wang, Peng Gao
doaj   +1 more source

Observation of contact angle hysteresis due to inhomogeneous electric fields

open access: yesCommunications Physics, 2021
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

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