ANALYSIS OF THE INFLUENCE OF WIND DIRECTION AND FIRE RESISTANCE POWER IN MODELLING THE SPREAD OF GROUND FIRES USING A MULTIAGENTIC METHOD

The article shows the dependencies of wind direction parameters and wind rose coefficient settings for the configuration and dynamics of ground fire spread. The article examines the assumptions of the model for calculating and dividing the transmission angle with conversion to wind rose coefficients, and shows a mathematical model for counteraction and calculating agents at the boundaries. The diagram of the transition between states is shown, with a selected zone of the fire agent, increasing the effectiveness of counteraction in the zone of its activity. The calculation of fire counteraction and slow decrease of the efficiency coefficient on the geo-plane with its possible increase at the intersection of interactions is shown. A fragment of the program code for finding the coordinates of agent points for finding boundary positions on the geo-plane is shown. Differences in fire propagation are shown taking into account the wind, as well as indicating the power. The dynamics of the passage of ground fire along the configuration is considered taking into account the counteraction rectangle with consideration of the bypass sleeves and the closure of fire behind the counteraction rectangle. Fire configurations are shown for the counteraction power and the fire acceleration power, as well as a comparative table with the main indicators of the duration of fire spread and the remaining agents in cases with and without taking into account the wind and the slowing down or acceleration of the counteraction. The idea of the minimal difference between the nature of the complete absence of extinguishing and arbitrary-chaotic extinguishing of fire is described. A table of characteristics of fire suppression by different methods is shown, taking into account the number of fire agents with different radii and efficiency of extinguishing fire.