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|Title:||Observations of the coalescence of miscible drops||Authors:||QIAN BIAN||Keywords:||free-surface flow, drop coalescence, Marangoni wave, self-similar, curvature||Issue Date:||31-Mar-2006||Citation:||QIAN BIAN (2006-03-31). Observations of the coalescence of miscible drops. ScholarBank@NUS Repository.||Abstract:||The coalescence motions of two fluid liquid masses were imaged and observed with a PIV camera. The effects of large difference of surface tension and viscosity between liquid masses on the coalescence motions were explored. Marangoni waves were observed in the coalescence of a water drop with a pool of ethanol and the wave was shown to be self-similar scaled with time to the 3/2 power. When high viscosity difference applied between the liquid masses, capillary wave dampened and a sharp corner characterizes the region where two fluids meet. Moreover, limited experiments were carried out with surfactants solutions coalescing with pure water drops.||URI:||http://scholarbank.nus.edu.sg/handle/10635/15306|
|Appears in Collections:||Master's Theses (Open)|
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