FDS cell size
This tool allows users to determine the right size for the FDS cells according to McGrattan et al.(2010).
"For simulations involving buoyant plumes, a measure of how well the flow field is resolved is given by
the nondimensional expression D*/x, where D* is a characteristic fire diameter and x is the nominal size of a mesh cell."
In a sensitivity analysis (Hill et al., 2007), sponsored by the U.S. Nuclear Regulatory Commission, the D * / x value ranges between 4 and 16.
Cell size (x) [m]:  
Heat Release Rate (Q) [kW]:  
Air density (p) [kg/m^{3}]:  
Air thermal capacity (c_{p}) [kJ/kg K]:  
Ambient air temperature (T) [K]:  
Gravitational acceleration (g) [m/s^{2}]:  
