FIG 6.

Additional fluid simulation of changes in the ethanol concentrations in mucus. (A) Addition of 95 μl of 80% ethanol to 5 μl saline was modeled in OpenFOAM, demonstrating the disappearance over time of the region with <31% ethanol (shown in red). See also Movie S1. (B) Addition of 95 μl of 80% ethanol to 5 μl mucus was modeled. The simulation was performed under conditions of reduced viscosity (16.7% of the actual measurement value) because of the long time required for disappearance of the concentration region of <31%. See also Movie S2.