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Fire Dynamics

Ignition, growth, spread and decay phenomena of fire, including definition of thermal design scenarios.

Concepts

• Alpert Correlation
• Backdraft
• Ceiling jet
• Design fire
• Fire curve
• Fire growth rate
• Fire scenario
• Flame height
• Flashover
• Fuel package
• Heat Release Rate (HRR)
• HRR curve
• HRRPUA
• Ignition
• Pyrolysis
• Smouldering fire
• t² fire growth

Tools

• Altezza di fiamma
  Comparative estimation of mean flame height, continuous flame height and intermittent flame tip height with fixed v1 correlations.
• Fire Curve Database
  Browse curated HRR curves from literature, inspect key HRR parameters, generate reusable modeling inputs, and compare normative time-temperature curves.
• Fire Curve Generator
  Generation of nominal and t-squared fire curves for HRR scenario definition in performance-based analyses.
• Fire Parameters Estimator
  Support for preliminary thermal parameter calculations for design fire definition.

Technical Notes

• From ISO 834 to Real Fires: temperature, HRR and design fires

Methodological references

• Drysdale - Introduction to Fire Dynamics — An Introduction to Fire Dynamics
• NIST NCSTAR 1 — Final Report on the Collapse of the World Trade Center Towers
• SFPE Handbook (5th) — SFPE Handbook of Fire Protection Engineering, Fifth Edition