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Effect of electric fields on the rest time of coalescing drops
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10.1063/1.3020693
/content/aip/journal/apl/93/19/10.1063/1.3020693
http://aip.metastore.ingenta.com/content/aip/journal/apl/93/19/10.1063/1.3020693
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(Top) Schematic of the experimental setup. (Bottom) De-ionized water droplet resting at an oil/water interface. When an ac potential is applied [(i) ], the bottom of the droplet deforms into a cone [(ii) ; (iii) ] and then breaks through the interfacial film, initiating coalescence [(iv) ].

Image of FIG. 2.
FIG. 2.

Dimensionless drainage time is plotted as a function of dimensionless electric field . The closed symbols represent experiments in water/1000 cSt silicone oil for , 75, and 150 Hz; the open symbol represents experiments in water/5000 cSt silicone oil for ; the solid line represents a power law fit in the form , where .

Image of FIG. 3.
FIG. 3.

Dimensionless deformation time is plotted as a function of dimensionless electric field . The dashed line represents the critical dimensionless electric field required for the onset of deformation . The closed symbols represent experiments for water/1000 cSt silicone oil for , 10, 20, 40, 75, and 150 Hz with drop-diameter-to-gap-height ratio ; the open triangle represents water/1000 cSt silicone oil experiments for with varying from 12.15 to 96.33; the crosshatch symbol (#) represents experiments in water/5000 cSt silicone oil for and . The inset shows time plotted as a function of effective electric field .

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/content/aip/journal/apl/93/19/10.1063/1.3020693
2008-11-10
2014-04-16
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Effect of electric fields on the rest time of coalescing drops
http://aip.metastore.ingenta.com/content/aip/journal/apl/93/19/10.1063/1.3020693
10.1063/1.3020693
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