The coalescence of liquid drops in a viscous fluid: interface formation model
نویسندگان
چکیده
منابع مشابه
Coalescence of Liquid Drops
When two drops of radius R touch, surface tension drives an initially singular motion which joins them into a bigger drop with smaller surface area. This motion is always viscously dominated at early times. We focus on the early-time behavior of the radius rm of the small bridge between the two drops. The flow is driven by a highly curved meniscus of length 2πrm and width ∆ ≪ rm around the brid...
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A drop of a viscous fluid in an infinite reservoir of another fluid will move under its own weight if the surrounding fluid has different density. This paper is concerned with steady motions, i.e. the motions of the two fluids are indeFendent of time with respect to an observer attached to the interface between them. We assume that the shape of this bounding surface is governed by surface tension.
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M. B. Nemer1,†, P. Santoro2, X. Chen3, J. Bławzdziewicz4 and M. Loewenberg5 1Thermal & Fluid Experimental Science, Sandia National Laboratories, Albuquerque, NM 87185, USA 2Jefferies International Limited, 68 Upper Thames Street, London EC4V 3BJ, UK 3Exotic Credit Derivative Trading, Citigroup, New York City, NY 10013, USA 4Department of Mechanical Engineering, Texas Tech University, Lubbock, T...
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The coalescence of liquid drops has conventionally been thought to have just two regimes when the drops are brought together slowly in vacuum or air: a viscous regime corresponding to the Stokes-flow limit and a later inertially dominated regime. Recent work [Proc. Natl. Acad. Sci. 109, 6857 (2012)] found that the Stokes-flow limit cannot be reached in the early moments of coalescence, because ...
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When two liquid drops touch, a microscopic connecting liquid bridge forms and rapidly grows as the two drops merge into one. Whereas coalescence has been thoroughly studied when drops coalesce in vacuum or air, many important situations involve coalescence in a dense surrounding fluid, such as oil coalescence in brine. Here we study the merging of gas bubbles and liquid drops in an external flu...
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ژورنال
عنوان ژورنال: Journal of Fluid Mechanics
سال: 2014
ISSN: 0022-1120,1469-7645
DOI: 10.1017/jfm.2014.313