fCuidyn - VENTIL VENTILATION AND INDUSTRIAL RISK ANALYSIS IN BUILDINGS, TUNNELS AND MINES, USING ADVANCED 3D CFD SOLUTIONS fCuidyn-VENTIL is a software family for 3D numerical simulations of flows and explosions in buildings, tunnels and mines. fCuidyn-VENTIL software sries can be used for air flow distribution analysis, or chronic or accidental dispersion in confined spaces: O Ventilation flows (including HVAC): Concerns specifically 3D computation of air flow distribution in case of natural and/or forced ventilation systems (HVAC). Risk Analysis: 3D computations of diverse possible risk impacts, such as hazardous gases dispersion, fire impact, explosion impact. 3D Software Description fCuidyn-VENTCLIM Ventilation (comfort) + risk analysis (chronic and accidental) in buildings, and confined spaces. ■ HVAC, natural convection. ■ Diffusers, Blowers, Extractors ■ Thermal comfort, including building thermal analysis (convection, radiation, diffusion) ■ Confined Air Quality: Chronic dispersion of pollutants, particles... ■ Accidental risk: leakage, fire, explosion. fCuidyn-VENTUNNEL Ventilation (comfort) + risk analysis (chronic and accidental) in tunnels (Rail & Road) ■ Natural convection/ventilation ■ Forced convection : vertical and/or horizontal blowers, extractors, accelerators ■ Piston effects / vehicles motions entrainment ■ Risk impact; : leakage, fire, explosion ■ Dispersion / Stratification (smoke)/ Thermal studies fCuidyn-VENTEX Dispersion and Explosion risk analysis ■ Solid explosions (TNT) ■ 3D over-pressure scattering generated by explosions ■ Combustion : CH4, H2, other, ... validated for all types of geometry./ mixtures ■ Combustion models : Arrh镩nius; EBC, EDU, BML, ... ■ JWL oes models, Coupling 1D and 3D solutions in extended domains. fCuidyn-VENTMINE Ventilation (comfort) + risk analysis (chronic and accidental) in mines ■ 3D description of mine networks ■ Natural convection ventilation ■ Forced convection ventilation: blowers extractors,... ■ Pollutant dispersion (Radon). www.fluidyn.com

Ventilation and Industrial Risk Analysis by 3D numerical simulations fluidyn - VENTIL fluidyn - VENTIL software have all a user-friendiy interface, which is simplified for users to define geometries and meshes, and for model set-up for each applications: G Geometries of public and industrial buildings, tunnels with obstacles (cars, trains, ships, barges, others, ...); o Venting conditions (forced, natural), extraction, mining, blowing; o General source terms : Hazardous gases for dispersion, fire, evaporation, momentum (steady car motions); O Pistoning effect (linked to train motions); O Fast...