File Name: capillarity and wetting phenomena de gennes file.zip
Xianmin Xu 1 ,. Achdou, P. Le Tallec, F Valentin and O. Pironneau, Constructing wall laws with domain decomposition or asymptotic expansion techniques,, Compt.
While we are building a new and improved webshop, please click below to purchase this content via our partner CCC and their Rightfind service. You will need to register with a RightFind account to finalise the purchase. Physical Sciences Reviews publishes review articles in the areas of chemistry, physics and materials science. It aims at interdisciplinary topics in or between those classical disciplins. A focus lies on applications, closing the gap towards electrical engineering, bio-engineering and industrial chemistry. EN English Deutsch.
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In this paper, we systematically investigate the static wetting behavior of a liquid ring in a cylindrical capillary tube. We obtain analytical solutions of the axisymmetric Young—Laplace equation for arbitrary contact angles. We find that, for specific values of the contact angle and the volume of the liquid ring, two solutions of the Young—Laplace equation exist, but only the one with the lower value of the total interfacial energy corresponds to a stable configuration. Based on a numerical scheme determining configurations with a local minimum of the interfacial energy, we also discuss the stability limit between axisymmetric rings and non-axisymmetric configurations. Beyond the stable regime, a liquid plug or a sessile droplet exists instead of a liquid ring, depending on the values of the liquid volume and the contact angle. The stability limit is characterized by specific critical parameters such as the liquid volume, throat diameter, etc.
Domon et L. Duquet, F Paris, France E-mail: julien. The spreading of a liquid over a solid material is a key process in a wide range of applications. In this work we provide a theoretical framework, based on the nonlinear theory of discontinuities, to describe the behavior of a triple line on a soft material. We show that the contact line motion is opposed both by nonlinear localized capillary and visco-elastic forces. We give an explicit analytic formula relating the dynamic contact angle of a moving drop to its velocity for arbitrary rheology. We then specialize this formula to the experimentally relevant case of elastomers with the Chasset—Thirion power-law type of rheologies.
Author: Pierre-Gilles de Gennes, Francoise Brochard-Wyart, David Quere. Description:The study of capillarity is in the midst of a veritable.
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Currently, she is a professor of theoretical soft matter physics at the Curie Institute. She obtained her PhD in In she was made a professor of physical chemistry at Pierre-and-Marie-Curie University.
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bubbles pearls. capillarity and wetting phenomena de gennes pdf. capillarity and wetting fundamentals of surface tension wettability. capillarity and wetting.
Report Download. Pierre-Gilles de Gennes. All rights reserved. Use in connection with any form of information stor- age and retrieval, electronic adaptation, computer software, or by similar or dissimilar methodology now know or hereafter developed is forbidden. The use in this publication of trade names, trademarks, service marks and similar terms, even if the are not identified as such, is not to be taken as an expression of opinion as to whether or not they are subject to proprietary rights. As I glance out my window in the early morning, I can see beads of droplets gracing a spider web. The film of dew that has settled on the threads is unstable and breaks up spontaneously into droplets.
Early morning light forms tiny rainbows as it passes through the beads of dew strung along the filaments composing your hard-earned handiwork. Why beads? What happened to the water in between each drop? To answer this question, our eight-legged intellectual must first gain an understanding of how liquids such as water actually wet surfaces and why such liquids fail to wet other surfaces. The problem encompasses such subjects as liquids rising up capillary tubes, paint spreading on solid surfaces or liquids spreading on other liquids, the fascinating subject of bubble formation and stability, and why water streams down some surfaces and forms droplets on other surfaces. For readers with backgrounds in mathematics, physics, and chemistry, although it is not beyond advanced undergraduates in the sciences and technological fields.
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Women in Science: Materials View all 34 Articles. This work consists in an experimental investigation of forced dynamic wetting of molten polymers on cellulosic substrates and an estimation of models describing this dynamic. A previous work of Pucci et al. For lower Ca , a change in the dynamic wetting behavior was observed.
Capillarity and wetting phenomena: drops, bubbles, pearls, waves, Author: Pierre-Gilles de Gennes; Francoise Brochard-Wyart; David Quere. Categories: Chemistry File Info: pdf 21 Mb.Christopher I. 16.05.2021 at 08:56
The wettability of droplets on a low surface energy solid is evaluated experimentally and theoretically.