Modelling of Formation and Combustion of Accidentally Released Fuel Clouds

Processes accompanying accidental releases of pressurized fuels into the atmosphere are considered from the viewpoint of their modelling for hazard evaluation. Models for the fuel cloud expansion in the case of total loss of containment (vessel bursts) are presented and applied to the analysis of boiling liquid expanding vapour explosions. Cloud expansion velocities, turbulent characteristics, parameters of pressure waves and fireballs occurring after fuel ignition are obtained and compared with the experimental data.