Slip and no-slip of carbopol droplets: A direct experimental observation
Abstract eng: The spreading of yield stress droplets extruded on glass surfaces is studied experimentally. We used a combination of shadowgraphy and swept-field confocal microscopy. The vertical profiles of the radial velocity were obtained, using Particle Image Velocimetry (PIV). On untreated glass surfaces, Carbopol droplets experience a significant amount of effective slip. However, on treated (through salinization) glass, where positive charges are permanently generated on the surface, PIV demonstrated a substantial reduction in slip.
Publisher:
International Union of Theoretical and Applied Mechanics, 2016
Conference Title:
Conference Title:
24th International Congress of Theoretical and Applied Mechanics
Conference Venue:
Montreal (CA)
Conference Dates:
2016-08-21 / 2016-08-26
Rights:
Text je chráněný podle autorského zákona č. 121/2000 Sb.
Record appears in:
Record created 2016-11-15, last modified 2016-11-15