中国林学(英文版)2001，Vol.3Issue(2)：39-43,5.
野外火火头前方气体速度场的数值分析研究
Numerical Studies of Wind Speed Fields in Front of Forest Fire Fronts
摘要
Abstract
In the study a fire and fire environment model is set up and by using PHEONICS software 3 cases of surface rires are studied. The results fit the experimental studies well generally. The simulation reveals that (1)The wind speed fields in front of fire front generally can be divided into 3 zones and there is always an eddy imme diately at the comer between just in front of the fire and the ground. (2) The shape and dimension of the division of the 3 zones is mainly decided by slope angle and ambient wind speed given fire line intensity. (3) There exits an upwind zone in front of fire front. Ambient wind speeds have little effect on the magnitude of the upwind speed when slope angle is 0. But when the slope angle is negative, the upwind is apparently stronger.关键词
林火/地表火/数值模拟/风速Key words
forest fire/surface fire/numerical simulation/wind speed分类
农业科技引用本文复制引用
崔文彬,乔启宇,何龙..野外火火头前方气体速度场的数值分析研究[J].中国林学(英文版),2001,3(2):39-43,5.基金项目
The research is supported by Foundation for Doctoral Studies of Ministry of Education (No. 1998002206) （No. 1998002206）
