Modélisation d'accidentsModélisation des explosions (MRI)

Present and learn how to use digital tools used by industry to solve problems of atmospheric dispersion, toxicity and explosion from real examples. DNV PAHST Software (Integral Approach): Recognized and validated in France by the authorities for the conduct of hazard studies by the Classified Facilities for Environmental Protection (ICPE), including in particular the installations subject to the SEVESO Directive. GEXCON FLACS software (CFD code): FLACS is the industrial standard for CFD modelling, validated for modelling flammable and toxic releases in the context of industrial safety.

1. Accident modelling with PHAST:

• Introduction to DNV
• Steps before starting with PHAST
• Introduction PHAST
• PHAST user interface
• Setting a study file
• Calculation step 1: Discharge
• Calculation step 2: Dispersion
• Calculation step 3: Toxicity / Fire / Explosions
• Substances and mixtures
• Alternative scenarios

2. Dispersal and explosion modelling with CFD code

• Introduction on GEXCON
• Presentation of the FLACS software
• Modeling of a gaseous release
• Cloud dispersion modelling
• Cloud explosion modelling
• Modeling a flaming jet

3. Accident modelling on offshore installations

• Offshore installations
• Accident
• Risk management
• Fire and explosion mediation: safety critical elements, performance criteria, fire and explosion loadings, probabilistic approach
• Effects of explosions : Explosion loadings, probabilistic approach, structural response
• Effects of fire: Fire loading, structural response, passive protection

• MCQs for the parties "Modulation of accidents in the gas industry" and "Modulation of accidents on offshore installations".
• Project on FLACS code
• Project on PHAST software