Coalescence of Liquid Droplets and Liquid Dispersion

Liquid–liquid phase separation in gravity settler with inclined plates

“…For engineering liquid-liquid phase separators without internals, a great number of experimental investigations (Amasheh, 1989;Drown and Thomson, 1977;Henschke, 1995;Jeffreys et al, 1971;Murray, 1979;Siemons, 1985;Vijayan and Ponter, 1976) and also efficient engineering design models (Golob and Modic, 1977;Hartland and Jeelani, 1989;Henschke, 1995;Jeelani and Hartland, 1988;Jeffreys and Davies, 1971;Müller, 1969;Müller and Kreichelt, 1979;Reissinger et al, 1981;Sklokin et al, 1988;Stönner, 1981;Stönner and Wöhler, 1975) are available. In contrast, only few publications have focused on the properties of separators including internals.…”

Thermal delay of drop coalescence

“…has been characterized (e.g. Charles & Mason 1960a,b;Jeffreys & Davis 1971), leading to a classification of different dynamical regimes (Aryafar & Kavehpour 2006 in high-speed imaging (Thoroddsen & Takehara 2000), experimental techniques (Mohamed-Kassim & Longmire 2004), and numerical simulations (Blanchette & Bigioni 2006) have furthered our understanding of coalescence in various circumstances, including the effects of concentration-induced Marangoni stresses (Blanchette, Messio & Bush 2009). The myriad aspects of coalescence were recently reviewed by Kavehpour (2015).…”

Automated image analysis for trajectory determination of single drop collisions

“…The velocity and the manner of film drainage depends on various influencing parameters i.e. physical properties of the phases (density, viscosity), interfacial tension, surface active components, dissolved ions, pH value, mass transfer, relative velocity, oscillations, drop sizes, and many more [14]. Even under apparent constant conditions coalescence itself is a stochastic event and the result of a single droplet collision (coalescence or repulsion) is not predictable.…”