✦ LIBER ✦

Unsteady Wetting on a Rough Surface due to Electrically Altered Surface Tension

✍ Scribed by Yeong-Yan Perng; Seth Lichter

Publisher: Elsevier Science
Year: 1999
Tongue: English
Weight: 167 KB
Volume: 217
Category: Article
ISSN: 0021-9797
DOI: 10.1006/jcis.1999.6352

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✦ Synopsis

Measurements of unsteady wetting on a rough surface were made. Spreading was initiated by electrically altering the solidliquid surface tension. The resultant time-dependent interface shape could be described by steady theory augmented with an ad hoc model which accounts for surface roughness. Flattening of the interface induced by pinning appears in the equations as "slip" which lowers the effective capillary number.