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.
FDS Mesh Cell Size — Results
| Inputs | |
|---|---|
| Heat release rate | |
| Ambient temperature | |
| Gravity | |
| Specific heat | |
| Density | |
| Result | |
| Characteristic fire diameter (D*) | |
| FDS User Guide — suggested minimum cell size | |
| FDS User Guide — suggested maximum cell size | |
| NRC suggested minimum cell size | |