Explosive disintegration of two-component drops under intense conductive, convective, and radiant heating

Measuring temperature of emulsion and immiscible two-component drops until micro-explosion using two-color LIF

“…Experiments were conducted for two types of droplets: two-component immiscible droplets [36][37][38][39] and emulsion droplets [32][33][34][35]. In both cases, a droplet contained 9% of water and 91% of the combustible component (tetradecane).…”

“…Moreover, the temperature within a droplet may be highly dependent on the heating scheme [32][33][34][35][36][37][38][39][40][41]. That is why all studies of such kind require specialized equipment and data processing algorithms.…”

“…It is also important to select the optimal droplet heating scheme for these conditions. The analysis of various heating schemes [39,40] indicates that conductive heating (using a heated surface) is the optimal scheme for 2-Color LIF as compared to other heat exchange schemes. Radiative heating complicates the optical access to a droplet.…”

Fragmentation versus Cohesion

“…This configuration is the three-dimensional analogue with liquids of the ring configuration initially imagined by Mott (1947) for solids in two dimensions (see also Grady (2006) and Zhang & Ravi-Chandar (2007, and § 2.3 for its discrete version with magnets). This problem, in which the envelope fragment distribution is the result of a competition between deformation and cohesion, is relevant to a collection of phenomena spanning over a broad range of length scales, among which are: exploding blood cells and bacteria (antibiotics like penicillin disrupt cell walls by explosive lysis, Flores-Kim et al (2019)), spore dispersal from plants (Ingold 1971;Hassett et al 2013), boiling droplets (Frost 1988;van Limbeek et al 2013;Antonov, Piskunov & Strizhak 2019), underwater explosions (Cole 1948), magma eruption in volcanoes (Kedrinskii 2009;Sonder et al 2018), up to the torn patterns of supernovae in the Universe (Burrows 2000), among other examples. Case shells, bombs are obvious examples where one would like an a priori knowledge of the final fragments as a function of the energy released by the explosion, and of the physical properties of the enclosing envelope (Zeldovich & Raizer 2002;Kedrinskii 2005;Frost et al 2007).…”

Effect of the Addition of Petrochemicals onto the Atomization and Ignition of the Coal-Water Slurry Prepared from the Wastes

“…The evaporation of water resulting the drying of different flying droplets observed in [18,19]. Problems of droplet fragmentation under extremal thermal conditions are investigated in [20,21]. Some interesting observation of the slurry injection into the working burner were done in [22,23].…”