Results 11 to 20 of about 425,220 (296)
Temperature-dependence of the static contact angle: A transition state theory approach [PDF]
Journal of Colloid and Interface Science, 2021 The temperature dependence of the static contact angle could a priori be predicted by using surface tension partitioning. An original model based on the transition state theory is also introduced. This model considers thermocapillary fluctuations on the droplet surface near the triple line and the self-affine pinning of this triple line against a solid
Duchemin, Benoît +3 more
openaire +4 more sources
An influence of shroud design parameters on the static stresses of blade assemblies [PDF]
MATEC Web of Conferences, 2019 In this study, the structural analysis of the blade assemblies was carried out using the finite element method to determine the influence of design parameters of shroud couplings on the static stresses of turbine rotor blades with zigzag and slant shroud
Savchenko Kyrylo +4 more
doaj +1 more source
Evaluation of Some Adjuvants in Improving Foliar Fertilizers Efficiency [PDF]
Arab Universities Journal of Agricultural Sciences, 2021 A series of lab and field experiments were carried out to evaluate the possibility of using some substances as adjuvants added to the foliar fertilizer tank to improve fertilizer application and enhance use efficiency.
Dina Omran +3 more
doaj +1 more source
Advances in Materials Science and Engineering, 2020 The dynamic contact angle model is applied in the formation process of a series of bubbles from Period-I regime to Period-II regime by using the VOF method on a 2D axisymmetric domain.
Nan Chen, Xiyu Chen, Antonio Delgado
doaj +1 more source
Is contact angle a cause or an effect? – A cautionary tale [PDF]
E3S Web of Conferences, 2020 The most influential parameter on the behavior of two-component flow in porous media is “wettability”. When wettability is being characterized, the most frequently used parameter is the “contact angle”.
Ruth Douglas
doaj +1 more source
Contact angle hysteresis and pinning at periodic defects in statics [PDF]
Physical Review E, 2014 This article deals with the theoretical prediction of the wetting hysteresis on nonideal solid surfaces in terms of the surface heterogeneity parameters. The spatially periodical chemical heterogeneity is considered. We propose precise definitions for both the advancing and the receding contact angles for the Wilhelmy plate geometry.
Iliev, Stanimir +2 more
openaire +3 more sources
Multifunctional aluminium surfaces – Laser-structured micropatterns with ice-repellent, superhydrophobic and easy-to-clean properties [PDF]
MATEC Web of Conferences, 2020 In this work, the fabrication of multifunctional periodic microstructures on pure aluminium is presented. Three different geometries were fabricated with feature sizes ranging between 7 µm and 50 µm by using laser-based microstructuring methods.
Milles Stephan +3 more
doaj +1 more source
Static Electrification by Nonwetting Liquids. Contact Charging and Contact Angles
Langmuir, 1995 A glass slide hydrophobized with dimethyldichlorosilane appears to be electrostatically charged when a nonwetting liquid recedes from its surface. The surface charge has negative polarity. The density of the charge which arises on retraction from water is 10 -4 C/m 2 . The half-life of the charge on the surface in air is 0.5 h.
Yaminsky, V, Johnston, M
openaire +1 more source
Controlling sliding droplets with optimal contact angle distributions and a phase field model [PDF]
, 2019 We consider the optimal control of a droplet on a solid by means of the static contact angle between the contact line and the solid. The droplet is described by a thermodynamically consistent phase field model from [Abels et al., Math. Mod. Meth.
Bonart, Henning +2 more
core +1 more source
Event-based contact angle measurements inside porous media using time-resolved micro-computed tomography [PDF]
, 2020 Hypothesis: Capillary-dominated multiphase flow in porous materials is strongly affected by the pore walls' wettability. Recent micro-computed tomography (mCT) studies found unexpectedly wide contact angle distributions measured on static fluid ...
Bultreys, Tom +2 more
core +2 more sources