| 林火初期蔓延的分形模型 |
| |
| 引用本文： | 蒋礼,阳柳,周建军.林火初期蔓延的分形模型[J].火灾科学,1994,3(1):1-8. |
| |
| 作者姓名： | 蒋礼 阳柳 周建军 |
| |
| 作者单位： | 中南林学院，中国科技大学 |
| |
| 基金项目： | 国家自然科学基金的支持 |
| |
| 摘 要： | 本文运用分形理论对林火蔓延进行了研究，以分形曲线的自相似性为基础，结合火场参差不齐的边界，分析了在平地均匀可燃物床情况下，不同风速、风向的分形关系，从而建立起林火蔓延的分形模型。用ｃｏｃｈ雪花曲线导出了火场蔓延的面积公式并用实例进行了计算和误差的比较分析。
|
| 关 键 词： | 林火蔓延 火场 分形模型 森林火 |
FRACTAL MODEL OF FOREST FIRE SPREAD IN THE INITIAL STAGE |
| |
| JIANG Li,UAMG Liu and Zhou Jian-jun.FRACTAL MODEL OF FOREST FIRE SPREAD IN THE INITIAL STAGE[J].Fire Safety Science,1994,3(1):1-8. |
| |
| Authors: | JIANG Li UAMG Liu and Zhou Jian-jun |
| |
| Institution: | Central-South Forestry Univwrsity, Zhu Zhou, 412006;Central-South Forestry Univwrsity, Zhu Zhou, 412006;University of Science and Technology of China |
| |
| Abstract: | In this article,fractal theory is applied to further study the spread of forest fires,the fractal relations under variable wind velocities,wind directions, and level and isotropic fuel beds are analysed A fractal model is presented on the basis of self-similarity of ractal curve and the fea-ture of the uneven boundary of fire field.A area formula of fire field is dedused from 1.2618 coch cu rve, It turns out that average errors of relative values,are small.the wider a fire field is,the smaller a relative error will be in calculation. the medel is sufficiently simple,qulte floxi-ble,rather accurate and Convenient to deal with forest fire spread in the initial |
| |
| Keywords: | |
| 本文献已被 CNKI 维普 等数据库收录！ |
| 点击此处可从《火灾科学》浏览原始摘要信息 |
| 点击此处可从《火灾科学》下载免费的PDF全文 |
|
