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THREE-DIMENSIONAL FIRE SPREADING SIMULATION SYSTEM
THREE-DIMENSIONAL FIRE SPREADING SIMULATION SYSTEM
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机译：三维火灾蔓延模拟系统
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摘要
PURPOSE: To represent the detailed structure of a house, to directly represent physical constants obtained by a small fire experimentation in a rule, and to simulate time variation of fire spreading at a high speed. CONSTITUTION: State variables of a cell material 304, a house border flag 305, a combustion state 306, a combustion time 307, etc., of each cell in a uniform shape obtained by dividing an object space in three dimensions are stored in a storage device, a fire spreading rate of each cell is found at unit time intervals from the state of the circumference and cell material 304 of each cell 308, and combustion is decided according to a fire spreading rate to update the combustion state of the state variables, after the combustion state 306 of the state variables of the cell 308 changes into combustion, the combustion time of the state variables of the cell 308 is updated every time the unit time has elapsed, fire extinction is decided at the time of exceeding a specific time, and the combustion state of the cell 308 is changed into a fire extinction state. The fire spreading rate P of the cell 308 is expressed as P=PcPfPrPo by using respective fire spreading rates of the thermal power Pf of the combustion cell, the temperature distribution Pc of the combustion cell circumference, the combustion hardness of cells at fire spreading destination, and other factors Po such as temperature and humidity.
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