000014547 001__ 14547
000014547 005__ 20161115100155.0
000014547 04107 $$aeng
000014547 046__ $$k2016-08-21
000014547 100__ $$aKant, Pallav
000014547 24500 $$aSequential droplet deposition on geometrically and chemically patterned substrates

000014547 24630 $$n24.$$p24th International Congress of Theoretical and Applied Mechanics - Book of Papers
000014547 260__ $$bInternational Union of Theoretical and Applied Mechanics, 2016
000014547 506__ $$arestricted
000014547 520__ $$2eng$$aWe experimentally investigate the use of topographical features and spatially varying wettability (with moderate receding contact angle) to fill and confine a linearly deposited sequence of overlapping micro-droplets (30 pm in diameter) into a stadium-shaped well region (Figure 1). Our experiments determine the parameter regimes for which droplet lines are contained within shallow wells (~l um depth) and, moreover, reveal that the presence of topography results in the formation of contact line cusps during fluid redistribution .On surfaces with wettability variations, controlled wetting resulting in accurate fluid positioning is achieved without any extreme deformation of the contact line. We extend a previously developed quasi-static lubrication model that predicts the post-impact, drop by drop evolution of a liquid line on a flat substrate [1] to include topographical and wettability patterns. The model is shown to reproduce the overall experimental features accurately.

000014547 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000014547 653__ $$a

000014547 7112_ $$a24th International Congress of Theoretical and Applied Mechanics$$cMontreal (CA)$$d2016-08-21 / 2016-08-26$$gICTAM2016
000014547 720__ $$aKant, Pallav
000014547 8560_ $$ffischerc@itam.cas.cz
000014547 8564_ $$s145158$$uhttps://invenio.itam.cas.cz/record/14547/files/TS.FM06-5.01.pdf$$yOriginal version of the author's contribution as presented on CD,  page 822, code TS.FM06-5.01
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000014547 962__ $$r13812
000014547 980__ $$aPAPER