Figure 7
From: Droplet nuclei caustic formations in exhaled vortex rings

Scatter plot of the filtered FLA2 number density versus 1/J. Colours correspond to the filtering length. Dashed iso-lines correspond to the kernel density estimation at levels 10% 50% and 90%. Case C3DN6. \(T=8\) ms. (a–h) \(D_d=0.5\)–\(100\;\upmu\)m. (d–h) are presented in logarithmic scale.