CFD Modelling Validation: Best Practice for UK Fire Engineers

How to validate CFD fire simulations against experimental data — a practical guide for compliance and defensibility.. Why Validation Matters CFD modelling is increasingly used to justify fire engineering departures from prescriptive guidance. But poorly validated models can lead to unsafe designs. Validation Framework 1. Verification — confirming the numerical solution is mathematically correct 2. Validation — comparing model predictions against experimental data 3. Sensitivity analysis — testing how results change with input variations 4. Uncertainty quantification — defining confidence bounds on predictions Recommended Validation Data Sources NIST Fire Dynamics Simulator (FDS) validation guide Dalmarnock Fire Tests NRC/NIST multi storey fire experiments CIB W14 round robin exercises BS 7974 Part 1 (Application of fire safety engineering principles) For CFD modelling services, contact us.