火场典型灾变特征虚拟仿真实验设计  

Virtual simulation experiment design of typical fire scenario catastrophic characteristics

作　　者：陆新晓 史国钰 王毅[1] LU Xinxiao;SHI Guoyu;WANG Yi(School of Emergency Management and Safety Engineering,China University of Mining and Technology(Beijing),Beijing 100083,China)

机构地区：[1]中国矿业大学(北京)应急管理与安全工程学院,北京100083

出　　处：《实验技术与管理》2022年第11期84-90,116,共8页Experimental Technology and Management

基　　金：国家自然科学基金项目(52074304);中国矿业大学(北京)课程建设与教学改革项目(J200204,J211207)。

摘　　要：火灾严重威胁着国家社会安定和人民健康安全,该文旨在设计并建立火场灾变虚拟仿真实验平台,以重现其灾变演化进程及人员安全疏散行为。为此,提出了虚拟仿真建设思路和设计方案,明确了纵向火风压驱动灾变蔓延核心要义,建立了火灾时空推演和安全疏散两大虚拟仿真核心模块,阐明了火灾蔓延的典型涡旋卷吸、高位延伸和贴壁流动特征,确定了火场致灾区域范围、临界阈值和合理风险规避方法。通过内容丰富的虚拟仿真实验,强化了对火场灾变典型特征的认知度和直观感知性,显著提升了火灾虚拟实验教学效果。Fire is a serious threat to the national social stability and personal health security. The propose of this paper is to design and establish a virtual simulation experimental platform for fire disasters to reappear the disaster evolution course and the personal safety evacuation behavior. Thus, the virtual simulation construction thought and design scheme are put forward. The core essentials of the fire-heating air pressure are clarified in driving the catastrophe fire propagation. Two kernel modules of virtual simulation are established on the fire temporal-spatial deduction and safe evacuation. The typical vortex entrainment, high-level extension and adherent flow characteristics of fire propagation are stated. Then the disaster-caused area scope, critical threshold and reasonable risk avoidance method are determined. Based on the content-rich virtual simulation experiment, the awareness and intuition perception on the typical catastrophic characteristics of fire scenario are further strengthened, and the virtual fire experiment teaching effect are significantly enhanced.

关 键 词：火灾 虚拟仿真 火风压 灾变演化 安全疏散 

分 类 号：X932[环境科学与工程—安全科学]