منابع مشابه
Thermal delay of drop coalescence
We present the results of a combined experimental and theoretical study of drop coalescence in the presence of an initial temperature difference 1T0 between a drop and a bath of the same liquid. We characterize experimentally the dependence of the residence time before coalescence on 1T0 for silicone oils with different viscosities. Delayed coalescence arises above a critical temperature differ...
متن کاملThe Influence of Bicomponent Mixed Surfactants on Drop/Interface Coalescence
Effects of binary mixtures of ionic/nonionic (sodium dodecyl sulfate/2-heptanol or 1-decanol) and nonionic/nonionic surfactants (2-heptnol/1-decanol) on drop/interface coalescence of water drops in a continuous n-heptane phase were examined. The drop size reduced appreciably and the multi-step coalescence was suppressed finally as the concentration of each of the constituting components</em...
متن کامل3d Numerical Simulation of Drop Coalescence∗
The major importance of drop coalescence in a number of natural and industrial processes provides the motivation for fundamental experimental and theoretical studies on its mechanics. One of the main difficulties of such investigations is related with the presence of a thin liquid film, typically of order 10−4 of the drop size. In numerical studies of coalescence this requires very fine spatial...
متن کاملCapillary-inertial colloidal catapults upon drop coalescence.
Surface energy released upon drop coalescence is known to power the self-propelled jumping of liquid droplets on superhydrophobic solid surfaces, and the jumping droplets can additionally carry colloidal payloads toward self-cleaning. Here, we show that drop coalescence on a spherical particle leads to self-propelled launching of the particle from virtually any solid surface. The main prerequis...
متن کاملDrop Coalescence on a Single Plateau Border
The flow of liquids in unbounded geometry (i.e. without rigid boundary conditions) is encountered in jets and films. Another example is provided by the drainage of foams under gravity. The latter example has been largely investigated these last years [see e.g. Koehler, 2000; Cox, 2001; Pitois, 2005; Saint-Jalmes, 2006]. Most of previous studies consisted in macroscopic measurements performed at...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Fluid Mechanics
سال: 2017
ISSN: 0022-1120,1469-7645
DOI: 10.1017/jfm.2017.686