Table 1.
Boundary conditions during CFD simulations
| Object | Boundary type | Velocity area (m2) | Velocity (m/s) | Temperature (K) | TI (%) | Turbulence length scale (m) | Heat generation (w/m3) |
|---|---|---|---|---|---|---|---|
| Bed | Wall | – | – | 297.15 | – | – | 0 |
| Door crack | Velocity inlet | 0.012 | 0.694432 | 295.15 | 1 | 0.04375 | – |
| Inlet | Velocity inlet | 0.1225 | 0.612234 | 295.15 | 1 | 0.04375 | – |
| Interior walls | Wall | – | – | 297.15 | – | – | – |
| Worker body | Wall | – | – | 307.07 | – | – | 1425 |
| Worker head | Wall | – | – | 308.75 | – | – | 6383 |
| Outer wall | Wall | – | – | 303.15 | – | – | 0 |
| Outlet | Outflow | 0.1225 | – | – | – | – | – |
| Patient head | Wall | – | – | 311.15 | – | – | 6383 |
| Patient mouth | Velocity inlet | 0.001225 | 0.2 | 311.65 | 1 | 0.035 | – |
Note that the breathing boundary condition was maintained even under coughing scenarios, as described in the methods section.