Hydrodynamics of thin liquid films. Rate of thinning of emulsion films from pure liquids

Hydrodynamic Theory for Spontaneously Growing Dimple in Emulsion Films with Surfactant Mass Transfer

“…[16], at weak perturbations, one may repre-plane-parallel film of thickness h 0 : sent the interfacial tension as…”

“…[10] surface stresses on S. On the other hand, Ivanov and Traykov (16) and Traykov and Ivanov (17) have observed a strong influence of the oil phase viscosity upon the process of thin-Our parameters are h s É 10 03 surface poises (g/s), a value typical for low molecular weight surfactants (8), h É 10 02 ning of an emulsion thin liquid film. However, in their case the characteristic time was much smaller than t in the present poises (water), h 0 É 3.5 1 10 05 cm, and R É 3 1 10 02 cm (see the next section).…”

Film Drainage between Colliding Drops at Constant Approach Velocity: Experiments and Modeling

“…Various regimes of drainage can be distinguished depending on the mobility of the interfaces (3)(4)(5)(6). Inter-faces are said immobile when their tangential velocity is zero, partially or fully mobile when film drainage and inside drop flow are coupled by their tangential velocity at the interfaces, and fully mobile when there is no tangential stress at the interfaces.…”

The drainage and rupture of partially-mobile films between colliding drops at constant approach velocity

“…This, in turn, is justified provided the time scale, tdrop, required for such a creeping flow to adapt to changes in the film flow is much smaller than the time scale, Reed et al (1974a,b) and by Ivanov & Traykov (1976).…”