Figure 4
(a, b) Plots of the experimentally determined jet velocities for the four different GDVN types as a function of applied liquid and gas flow rates. Circles represent data from the jet explosion method, while stars denote velocities from the droplet PIV method. In panel (b) the broken line describes the jet velocity prediction formula vjet = a + b × (Qg/Dg2)1/2/(Ql)1/4, where the constants have the numerical values a = 8.35 and b = 1022 if Qg is given in mg min−1, Dg in µm, Ql in µl min−1 and vjet in m s−1. (c) The corresponding jet diameters are calculated via djet = [4Ql/(πv)]1/2. |