大兴安岭呼中林区林火蔓延三维模拟  

Simulation of Forest Fire Growth in an Integrated 3D Virtual Geographical Environment in Daxinganling Huzhong Area

作　　者：柳生吉[1] 

机构地区：[1]铁道第三勘察设计院集团有限公司,天津300251

出　　处：《安徽农业科学》2015年第14期306-310,331,共6页Journal of Anhui Agricultural Sciences

摘　　要：综合国内外林火蔓延相关研究,结合大兴安岭呼中林区的实际情况,选择Rothermel蔓延模型为林火蔓模拟模型,采用微软的Visual Studio 2010做为开发工具,Open Scene Graph 3.0作为三维渲染引擎完成一款林火蔓延模拟软件(3DVFS)的开发。采用的林火蔓延算法是计算效率比较高的最短传播时间算法。林火蔓延模拟中综合考虑风、地形、可燃物类型等因素对林火蔓延的影响。林火模拟结果表明:3DVFS可以反映森林火灾的蔓延规律,进一步完善后可能为林火行为研究工作、森林防火扑火工作等起到一定的指导作用。After a comprehensive analysis of overseas and domestic research status of forest fire spread, selecting Rothermel model for our forest fire spread modeling under the actual situation of Huzhong forest area, using Microsoft Visual Studio 2010 as development tool, OpenSceneGraph 3.0 as three-dimensional rendering engine, the development of 3DVFS was completed. The algorithm used in forest fire spread simulation was minimum travel time algorithm with the feature of high efficient computation. The study took into account the influence of wind, ten＇ain, fuel types on forest fire spread. The result shows that the software can reflect the laws of forest fire spread in some extent. So we hoped that it would provide a guide role on forest fire behavior research, forest fire prevention and suppression work.

关 键 词：蔓延模型 最短传播时间 林火蔓延 

分 类 号：S762[农业科学—森林保护学]