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Showing 1 to 10 of 10 for “"Dynamic wetting"”.
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Dynamic wetting/dewetting processes in complex liquid-solid systems
… sponsor Kodak Ltd. Mathematical models for dynamic wetting phenomena are incorporated into a specially developed finite element based numerical platform. By examining different models, it was found for the first time that the interface formation model is capable of describing the …
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Dynamic wetting of soft materials and applications of dynamic tensiometry
… a surface characterization technique (dynamic tensiometry) has been extended to provide further insight into the wetting properties of liquid-repellent surfaces, and the efficacy of engineered surfaces for applications in drag reduction, oleophobic fabric design and fog harvesting is …
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Influencing contact-line behavior in dynamic wetting through thermocapillarity and surface topography
Dynamic wetting involves an advancing fluid displacing a receding fluid on a solid surface. This phenomenon can be seen in day-to-day occurrences such as water droplets sliding on a glass window on a rainy day, where the droplet displaces the air surrounding the glass surface as it slides, and in …
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Pressure infiltration behaviour and properties of aluminium alloy - Oxide ceramic preform composites
… first, flow initiation characterised by the dynamic wetting angle θdyn and, second, the advancing flow in the preform capillaries. Reactions were detected in the MMC but did not significantly influence the θdyn. Unsaturated fluid flow was evaluated for the subsequent infiltration stage and …
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Phase-Field Modeling of Oscillatory Wetting Phenomena with Contact Angle Hysteresis
… experiments. Here we use a phase-field model of dynamic wetting which directly includes the contact angle hysteresis to simulate the results of the aforementioned authors. A thorough derivation of the governing equations is presented, starting from the pioneering work of Cahn and Hilliard. Our …
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The post-dehydration processing and the effects on the structural modifications and functionalities of milk protein powders
… FB agglomeration significantly improved the dynamic wetting of MPI and micellar casein powders, by requiring shorter wetting time, being more quickly penetrated by water droplets and absorbing more water by capillary force. But the influences on whey protein were limited, only if using …
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Dynamics and Statics of Three-Phase Contact Line
Wetting, which addresses either spontaneous or forced spreading of liquids on a solid surface, is a ubiquitous phenomenon in nature and can be observed by us on a daily basis, e.g., rain drops falling on a windshield and lubricants protecting our corneas. The study of wetting phenomena can be …
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Smart Surfaces in Biobased Materials
… micellar solution revealed a linear decrease in wetting force according to the blend composition of the oligomer, i.e. behavior according to the rule of mixing. This indicated the absence of surface segregation of the F-endgroup and it is explained with the fact that the micellar structure is …
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Numerical Investigation of Liquid Film Dynamics and Atomisation in Jet Engine Fuel Injectors
… in computer power and Computational Fluid Dynamics (CFD) methods, computational modelling of injection systems emerges as a promising tool that can drive the design of future devices. This research project sets out to investigate the atomisation process in detail, in particular in providing …
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Physico-chemical hydrodynamics of droplets on textured surfaces with engineered micro/nanostructures
Understanding physico-chemical hydrodynamics of droplets on textured surfaces is of fundamental and practical significance for designing a diverse range of engineered surfaces such as low-reflective, self-cleaning or anti-fogging glass, easy-cleaning robust inkjet printer heads, or efficient …