FDS Mesh Cell Size

Determine a suitable Fire Dynamics Simulator mesh cell size from the characteristic fire diameter D*, following the FDS User Guide.

A D*/dx ratio between 4 and 16 is desirable — coarser cells simulate faster but less accurately. The ratios used here are coarse 4, moderate 10 and fine 14.

Fire
kW
°C
Ambient conditions
m/s²
kJ/kg·K
kg/m³