Fig. 5.

Plot of number of $c_1$ droplets (Left column) and $c_2$ droplets (Right column) over time, for different concentration ratios $c_1$: $c_2$, for CH (gray), CHS (red), CHSB $z$ (green), and CHSB $x$ models (blue). A $t^{-1/2}$ line (dashed black) fits some coalescence regimes well. The CHS, CHSB z, and CHSB $x$ models show very little difference in particle counts. The CH model is similar for concentration ratios $c_1$: $c_2$ of 3 : 7 and 7 : 3 but becomes increasingly distinct as the concentration ratio approaches 5 : 5. Droplet counts are omitted for other choices of droplet and concentration ratio because at most one drop ever forms.