Physics Of Wetting
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Physics of Wetting
Author: Edward Yu. Bormashenko
language: en
Publisher: Walter de Gruyter GmbH & Co KG
Release Date: 2017-09-11
Motivated by a plethora of phenomena from nature, this textbook introduces into the physics of wetting of surfaces. After a brief discussion of the foundations of surface tension, its implementation for floating objects, capillary waves, bouncing droplets, walking of water striders, etc. is discussed. Furthermore, Marangoni flows, surface tension inspired instabilities, condensation and evaporation of droplets, liquid marbles, superhydrophobicity and superoleophobicity (lotus effect) are introduced. All relevant concepts are illustrated by the numerous qualitative and quantitative exercises. Contents What is surface tension? Wetting of surfaces: the contact angle Surface tension-assisted floating of heavy and light objects and walking of water striders Capillary interactions between particles. Particles placed on liquid surfaces. Elasticity of liquid surfaces, covered by colloidal particles Capillary waves Oscillation of droplets Marangoni flow and surface instabilities Evaporation of droplets. The Kelvin and the coffee-stain effects Condensation, growth and coalescence of droplets and the breath-figure self-assembly Dynamics of wetting: bouncing, spreading and rolling of droplets (water hammer effect – water entry and drag-out problems)Superhydrophobicity and superoleophobicity: the Wenzel and Cassie wetting regimes The Leidenfrost effect. Liquid marbles: self-propulsion Physics, geometry, life and death of soap films and bubbles
Capillarity and Wetting Phenomena
Author: Pierre-Gilles de Gennes
language: en
Publisher: Springer Science & Business Media
Release Date: 2003-09-12
The study of capillarity is in the midst of a veritable explosion. What is offered here is not a comprehensive review of the latest research but rather a compendium of principles designed for the undergraduate student and for readers interested in the physics underlying these phenomena.
Controlled Surface Wetting
Comprehensive resource covering the latest development of surface engineering inspired by nature with a special focus on wetting control Drawing from the natural abilities of plants and animals around the world, Controlled Surface Wetting takes a deep dive into wetting-controlled systems of biological surfaces with information on mechanisms, theory, surface design, fabrication, and effects. This book guides readers to design better engineering surfaces for applications in self-cleaning, water harvesting and repellency, anti-icing, liquid-transport, and beyond. Exploring the latest literature, this book introduces bioinspired techniques and methods to design wetting-controlled surfaces by using organic or inorganic materials, including those with high/low surface energy, regular/irregular, ordered/disordered, or rough/smooth surfaces, or endless arrangements and combinations of micro- and nanostructures of various styles. This book begins by introducing biological surfaces such as plant leaves and duck feathers, butterfly wings, and spider silks, as well as their functions, including superhydrophobic properties, water repellency, and capturing tiny water droplets, respectively, progressing through to more advanced topics such as dually-mobile super-repellency, multi-liquid repellency, and switchable repellency in both air and liquid. Controlled Surface Wetting includes discussion on: Fundamental wetting theories, extension and theoretical models, wetting dynamics and kinetics, physics of wetting, wetting adhesion, and wetting chemistry Static and dynamic gradients, texture gradients such as gradient polymers, wedge- and helical-induced gradients, and synergism of multi-gradients Formation, control, and instability of Rayleigh instability, microfluidics, fluid-coating, electrospinning, fluid diffusion, and laser techniques Coalesced-droplet vertical transport, the hierarchical droplet size-effect, atmospheric water harvesting, and energy harvesting Artificial skins and sensors, including artificial skin vision, and medical applications, including directional-controllable drug delivery Controlled Surface Wetting is an up-to-date and completely comprehensive resource for students and researchers in chemistry, physics, and materials science seeking to learn about the design of smart and advanced materials for engineering applications.