Dm. Leppinen et al., THE EFFECTS OF SURFACTANTS ON DROPLET BEHAVIOR AT INTERMEDIATE REYNOLDS-NUMBERS .2. TRANSIENT DEFORMATION AND EVAPORATION, Chemical Engineering Science, 51(3), 1996, pp. 491-501
Early life histories of clean and contaminated n-heptane droplets inje
cted into high-temperature air (1000 K, 10 aim) at a Reynolds number o
f 100 are examined in an effort to determine the effects of surfactant
s on droplet behaviour. Transient variations in droplet shape, mass, a
nd velocity, and all effects due to liquid-phase motion and heating, a
nd variable thermophysical properties are included in this numerical s
tudy. A detailed analysis of droplet oscillation, surfactant transport
, interfacial stresses, liquid-phase motion, droplet drag, and heat an
d mass transfer is presented along with engineering correlations which
may be useful in spray modelling.