Study on combustion and flame merging characteristics of two n-heptane line fires under wind speed, spacing, and groove width

Author:

Huang Xinjie1,Hu Junjie2,Ding Hailong2,Zhang Xinyi2,Li Xinyi2,Wang Changlong2,Zhang Pengyuan2

Affiliation:

1. School of Civil Engineering and Architecture, Anhui University of Technology, Ma’anshan, Anhui, China + School of Safety Engineering, China University of Mining and Technology, Xuzhou, Jiangsu, China

2. School of Civil Engineering and Architecture, Anhui University of Technology, Ma’anshan, Anhui, China

Abstract

This paper studied the effects of wind speed, spacing and groove width on the combustion and flame merging characteristics of two n-heptane line fires. The experimental results show that the range of intermittent merging stage will increase with groove width; the greater the wind speed, the greater the probability of merging. At the non-merging stage, the influence of wind speed on the flame merging probability can be ignored. Under the influence of wind speed, mass loss rate per unit area, ??, of the downstream pool fire is greater than that of the upstream pool fire, at the stages of fully merging and intermittent merging. While when the flame spacing increases to the non-merging stage, ?? of the upstream pool fire begins to be gradually greater than that of the downstream pool fire. On the other hand, the downstream flame ?? increases firstly and then decreases, while the upstream flame ?? shows an increasing trend, with spacing distance. The smaller the groove width, the greater the value of ?". When the spacing is 0, ?? is the smallest. It is found that with the increase of spacing, the flame length under all tested conditions increases firstly and then decreases, and the flame inclination angle decreases firstly and then increases.

Publisher

National Library of Serbia

Cited by 1 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3