Fig. 4: Visualisation of the illuminated streamlines of the three face masks representing the velocity field in the permeability simulation. | Communications Materials

Fig. 4: Visualisation of the illuminated streamlines of the three face masks representing the velocity field in the permeability simulation.

From: Microstructure analysis and image-based modelling of face masks for COVID-19 virus protection

Fig. 4

The fibre structures are superimposed with the flow streamlines a–c to visualise where and how the flow is blocked by the fibres. The streamlines d–f are displayed to reveal the virtual ejected aerosol flow pathways, scaled according to their relative velocity.

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