CFD fire simulations development and spread of smoke are carried out on three-dimensional model of object that takes into account the basic technical parameters of the analyzed area. Assumptions are defined in detail in the architecture of an object (such as geometry, location of smoke curtains and natural and mechanical ventilation openings) day-to-day and smoke exhaust ventilation systems, sprinkler, fire alarm and the division of the analyzed area into zones according to pre-smoke developed the concept of smoke. Using the CFD simulations, are mapped to the most adverse fire scenarios, taking into account the most important parameters of a fire.
Due to the fact that volume of the analyzed object is divided by a grid computing to thousands of small items that are carried out in individual balances the flow, the CFD technique enables one to know the conditions during a fire at any point in the building at any time from the start of the fire.
Due to fire safety, the most important parameters analyzed during a fire occurring are: visibility and temperature range at the crossing and escape routes.
On the basis of CFD simulations it is possible to determine the time at which the passages and escape routes will range exceeded the limit values of temperature and visibility, and it shall evaluate the impact of these parameters on the effective evacuation. On the basis of CFD simulations it is possible to determine the time at which the passages and escape routes will range exceeded the limit values of temperature and visibility, and it shall evaluate the impact of these parameters on the effective evacuation. We performed computer simulations correspond to the existing standards, and are in accordance with the requirements of the applicable technical-construction rules.