PHOENICS/FLAIR is a CFD software package specializing in the simulation of scenarios involving fluid flow, heat transfer, combustion and chemical reaction processes occurring in the built and natural environment. FLAIR is utilized worldwide by architects, design engineers and safety officers concerned with the performance of air-flow systems for both the internal and external environment.

FLAIR enables users to visualise, understand, evaluate and refine the airflow patterns in steady state or time dependent scenarios, in micro- as well as macro-scale. FLAIR permits the safe investigation of “what-if” scenarios involving ventilation system failures, fires, explosions, gas and chemical releases, and the subsequent effect of remedial action.