Shape of a sliding capillary contact due to the hysteresis of contact angle: theory and experiment

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Shape of a sliding capillary contact due to the hysteresis of contact angle: theory and experiment	668 KB	Adobe Acrobat PDF	Read	Download
DOI Доступ к ресурсу на сайте издателя			10.22190/FUME201221005P

Title: Shape of a sliding capillary contact due to the hysteresis of contact angle: theory and experiment
Creator: Popov, Valentin L.
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Lyashenko, Iakov A.
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Starcevic, Jasminka
Date: 2021
DOI: 10.22190/FUME201221005P
Description: We consider a classical problem of a capillary neck between a parabolic body and a plane with a small amount of liquid in between. In the state of thermodynamic equilibrium, the contact area between the bodies and the liquid layer has a circular shape. However, if the bodies are forced to slowly move in the tangential direction, the shape will change due to the hysteresis of the contact angle. We discuss the form of the contact area under two limiting assumptions about the friction law in the boundary line. We also present a detailed experimental study of the shape of sliding capillary contact in dependence on the roughness of the contacting surfaces.