Fig. 6. Schematics (a) and still frame (b) from Lee et al.46 showing the microdroplet fusion mass spectrometry setup. (c) Weber number (We) calculated for the collision of two equally-sized aerosol droplets with variable colliding angle, θ; the diameter range of 13 ± 6 μm indicated by Lee et al.46 is shown for reference. The horizontal dashed line at We = 150 separates regions where coalescence or bouncing/separation are expected to occur.
