Research Progress of Droplet Wetting Behavior on Solid Textured Surface
نویسندگان
چکیده
منابع مشابه
Wetting theory for small droplets on textured solid surfaces
Conventional wetting theories on rough surfaces with Wenzel, Cassie-Baxter, and Penetrate modes suggest the possibility of tuning the contact angle by adjusting the surface texture. Despite decades of intensive study, there are still many experimental results that are not well understood because conventional wetting theory, which assumes an infinite droplet size, has been used to explain measur...
متن کاملEffects of geometrical characteristics of surface roughness on droplet wetting.
Surface roughness is known to alter the wettability on a solid substrate. In general, either Wenzel or Cassie-Baxter theory is adopted to describe the apparent contact angle. Following the minimum free energy pathway associated with the imbibition process, we have derived a generalized expression for the apparent contact angle on a textured surface and the liquid-gas contact area within the gro...
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We discuss quantitatively the wetting of a solid textured by a designed roughness. Both the hydrophilic and the hydrophobic case are described, together with possible implications for the wetting of porous materials. © 2002 Elsevier Science B.V. All rights reserved. PACS numbers: 68.10-m-; 68.35.Ct-; 68.45.Gd
متن کاملWetting Transition of the Ethanol−Water Droplet on Smooth and Textured Surfaces
The wetting behavior of an ethanol−water droplet is investigated on graphitic smooth and rough surfaces using molecular dynamics simulations. On a smooth surface, ethanol molecules prefer to stay at the vapor−liquid and solid− liquid interfaces. The contact angle of a droplet on a smooth surface decreases with an increase in the ethanol concentration from 0 to 30 wt %. The corresponding line te...
متن کاملDynamics of electro-wetting droplet transport
A model is formulated to describe the dynamics of electro-wetting-induced transport of liquid droplets. The velocity of droplet transport as a function of actuation voltage is derived. The operating parameters include the viscosity of the droplet and the medium through which it actuates, contact-line friction, system geometry, and surface tension. Numerical coefficients are extracted from exper...
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ژورنال
عنوان ژورنال: Jixie gongcheng xuebao
سال: 2022
ISSN: ['0577-6686']
DOI: https://doi.org/10.3901/jme.2022.01.124