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为了提高特殊火灾燃烧现象仿真的逼真程度,提出了以火灾动力学模型为支撑,利用FDS进行二次开发的技术路线。在建立轰燃、回燃、火旋风的数学模型基础上,将其耦合到FDS子程序当中,编译出新的程序。利用新的FDS程序模拟了三种燃烧现象,并与实验现象进行了比对。从四种输出文件的格式、意义和内部结构出发,解析出了燃烧现象的数据,为特殊火灾处置虚拟仿真训练系统的开发提供了新的思路。
In order to improve the realisticness of simulation of the special fire combustion phenomenon, a technological route based on fire dynamics model and secondary development by FDS is proposed. Based on the mathematical model of flashback, flashback and fire whirlwind, a new program was compiled by coupling it to the FDS subroutine. Three kinds of combustion phenomena were simulated with a new FDS program and compared with the experimental phenomena. Based on the format, meaning and internal structure of four output files, the data of combustion phenomena are analyzed, which provides a new idea for the development of virtual simulation training system for special fire disposal.