Dynamic contact angle
Dynamic contact angle of a liquid spreading on an unsaturated wettable porous substrate
... (equilibrium) contact angle is that the effective dynamic contact angle that the free surface of a spreading liquid forms with a porous substrate on the Darcy-scale cannot be regarded ...
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The estimation of dynamic contact angle of ultra-hydrophobic surfaces using inclined surface and impinging droplet methods
... Abstract. The development of industrial technology also brings with optimized surface quality, particularly where there is contact with food. Application ultra-hydrophobic surface significantly reduces the growth ...
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Nonlocal hydrodynamic influence on the dynamic contact angle: Slip models versus experiment
... fixed contact-line speed the dynamic contact angle — the angle at which the free surface meets the moving solid boundary — depends on the flow field/geometry in the vicinity of the ...
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Gas-liquid phenomena with dynamic contact angle in cathode of proton exchange membrane fuel cells
... In this thesis, a three-dimensional, two-phase numerical model is developed and applied to investigate gas-liquid phenomena inside the cathode of proton exchange membrane fuel cells (PEMFC) with different gas flow field ...
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Dynamic contact angle of water based titanium oxide nanofluid
... three-phase contact line velocity ( U = dr / dt ) plotted versus σ cos θ, where the base radius r is calcu- lated from the experimental dynamic contact angle θ using Equation ...the ...
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Investigation of drop dynamic contact angle on copper surface
... three-phase contact line properties haven’t been developed ...the contact line spreading rate and the wetted surface roughness in the scientific ...the dynamic contact angle (DCA) at ...
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Two-Phase Flows With Dynamic Contact Angle Effects For Fuel Cell Applications
... PEMFCs. Contact angle, as a crucial parameter in the boundary conditions for numerical simulation, has significant effects on droplet deformation and ...static contact angle (SCA) is usually ...
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To Investigate the absorption, dynamic contact angle and printability effects of synthetic zeolite pigments in an inkjet receptive coating
... effect. Dynamic contact angle and printability results indicate that synthetic zeolite coated samples are characterized with poor wettability, minimum ink spread and accelerated ink drying in ...
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Spreading of Low Impact Velocity Droplet on Porous Surface - Volume 5 Number 2 (Apr. 2014) - IJCEA
... Afterwards, contact angle still continues to decrease but at a slower ...in contact angle can be attributed to the lateral displacement of liquid above the substrate ...in contact ...
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Adsorption Characteristics and Corrosion Inhibition Efficiency of Ethoxylated Octadecylamine Ionic Liquid in Aqueous Acid Solution
... The dynamic contact angle was measured between the aqueous solutions of the prepared materials and the steel surface used for corrosion inhibition measurements using sessile drop techniq[r] ...
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Formation and properties of responsive siloxane-based polymeric surfaces with tunable surface reconstruction kinetics
... static contact angle (SCA) and dynamic contact angle (DCA) measurements using DI water (R> 15 MV ...´–Hart contact angle goniometer (model 100-00) equipped with a CCD ...
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Mixing and internal dynamics of droplets impacting and coalescing on a solid surface
... the dynamic contact angle to be speci- ...static contact angle, and the dynamic behaviour emerges during the simula- ...the dynamic contact angle varies ...
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VOF simulations of the contact angle dynamics during the drop spreading: Standard models and a new wetting force model
... the dynamic change of contact angle during the droplet impact have also been ...a dynamic contact angle model is very important in a CFD simulation, so that the temporal ...
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Contact Angle Measurements for Advanced Thermal Management Technologies
... 10 Contact angle measurements of water, acetone, R-134a, and HFO-1234yf using capillary rise and sessile drop ...in contact angles, in particular for the acetone-based ...a contact ...
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Determination of the Contact Angles of Kaolin Intercalates of Oleochemicals Derived from Rubber Seed (HeveaBrasiliensis) and Tea Seed (CameliaSinensis) Oils by the Capillary Rise Method
... of contact angles on flat surfaces and they include: sessile drop (captive bubble), inclined plate, and Wilhelmy's plate ...for contact angle measurements on powders is the capillary rise technique, ...
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Electrostatic Layer by Layer Self Assembly for Tuning Hydrophilic ITO glass to Wenzel Super Hydrophobic Surface
... by contact angle instrument. Figure 2 shows the contact angle of different bilayer numbers which can used to confirm the uniformity of LBL, It is clear that the thickness also increases ...
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Immobilization of Synthesized TiO2 Nano sheets onto the Surface of the Mesh and its Modification Effect on the Wettability Behavior
... The wettability through water and oil of the mesh was evaluated by measuring the contact angle in the air and underwater environments. From Figure 3a, it is indicated that unmodified mesh exhibited an ...
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On the Use of Laser Ablation for Cleaning High Voltage Ceramic Insulators
... As it was mentioned before, that measurements of insulator surface hydrophobicity were performed as to eva- luate if it is affected by the laser ablation process. Firstly, an area unaffected by the pollution was used to ...
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Effect of a 6-week dynamic neuromuscular training programme on ankle joint function: A Case report
... The results of the present study concur with those of McKeon et al [6] and Hale et al [7], whose studies both show an improvement in function as measured by the FADI upon completion of a 4-week rehabilitation pro- ...
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Probing the morphology and anti-organic fouling behaviour of a polyetherimide membrane modified with hydrophilic organic acids as additives
... From the literature, it was observed that, the presence of low molecular weight organic additives offers an effective and convenient way to alter the membrane performance with enhanced hydrophilicity, high permeability, ...
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