Numerical modeling of drop coalescence in the presence of soluble surfactants
نویسندگان
چکیده
منابع مشابه
The 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 کاملNumerical simulation of drop coalescence in the presence of film soluble surfactant
Numerical method is presented for simulation of the deformation, drainage and rupture of axisymmetrical film (gap) between colliding drops in the presence of film soluble surfactants under the influence of van der Waals forces at small capillary and Reynolds numbers and small surfactant concentrations. The mathematical model is based on the lubrication equations in the gap between drops and the...
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 of surf...
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 کاملNumerical Simulation of Drop Coalescence in the Presence of Inter-Phase Mass Transfer
Contents Introduction: Drop coalescence and applications; Effect of inter-phase mass transfer. • Inter-phase transport of solutes-convection-diffusion equations in the phases. Numerical method: • Boundary Integral Method for the Stokes equations in the drops; • Finite Difference Method for the flow in the film and the convection-diffusion equations.
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ژورنال
عنوان ژورنال: Journal of Computational and Applied Mathematics
سال: 2016
ISSN: 0377-0427
DOI: 10.1016/j.cam.2015.04.013