Diesel–diesel and diesel–ethanol drop collisions

Modeling of binary droplet collisions for application to inter-impingement sprays

“…It is based on the previous report of Ashgriz and Poo, 1990. In addition, previous experiments (see Estrade et al, 1999 andChen, 2007) have shown that any liquid types have a similar pattern of collision outcome distribution in terms of these parameters. From this reason, in this study, the validated collision models from the water-droplet collision experiment were used to simulate the inter-impingement sprays of light-oil.…”

Binary collisions of drops of immiscible liquids

“…In all of these studies, the colliding drops consisted of the same liquid. More recently, investigations on collisions of drops consisting of different, in part immiscible, liquids have started (Gao et al 2005;Chen & Chen 2006;Chen 2007;Planchette, Lorenceau & Brenn 2009). The fields of technical applications of these kinds of drop collisions may range from combustion in engines to production † Email address for correspondence: roisman@sla.tu-darmstadt.de processes in some life sciences, such as the coating of a liquid core by another immiscible liquid.…”

Equipment for printing of high viscosity liquids and molten metals

“…A tri-ethylene glycol droplet with a diameter of 110 µm is generated by the continuous inkjet, and a water droplet with a diameter of 55 µm is generated by the drop-on-demand printhead. The experimental results are compared with literature describing either equal sized droplets with different material types [56] or equal material type droplets with different sized droplets [54]. The differences observed are described.…”

“…Tri-ethyleen glycol druppels met een diameter van 110 µm worden door de continue inktstraal printkop gegenereerd enéén druppel water met een diameter van 55 µm wordt door deéén-druppel printkop afgevuurd. De experimentele resultaten zijn vergeleken met de literatuur, waarin zowel botsingen tussen druppels van gelijke afmetingen en verschillende materialen beschreven worden [56], als van verschillende afmetingen en gelijke materialen [54]. Uit de botsexperimenten resulteerden slechts enkele bruikbare resultaten (waarbij een minimale afbuiging van 2 • als bruikbaar is gedefinieerd).…”

“…If two different materials are used, the We number is not well defined with formula 3.1 since it is not clear which surface tension and density to use. Chen [56] investigated diesel-ethanol droplets collisions of equal size and defined the We number based on an average density ρ, where the average droplet density is derived from linear momentum conservation and defined as:…”