Fig. 7.

Normalized dilution curves of 99th percentile concentration of massless aerosols plotted against (a) time and (b) nondimensionalized time $t^{+}={\mathit{tu}}_{\mathit{tke}}{L}^{-1}$ where $u_{\mathit{tke}}$ is the turbulent kinetic energy velocity and L is the characteristic length scale of the flow system. Results are presented for a multitude of simulated cough realizations under varying retail store-like configurations and ventilation conditions. Dilution curves under homogeneous isotropic turbulence conditions using two comparable turbulence intensity levels are also included to highlight the dissimilarity of the studied flow system.