...
首页> 外文期刊>Fuel >A new mathematical method for quantifying trajectory of buoyant line-source gaseous fuel jet diffusion flames in cross air flows
【24h】

A new mathematical method for quantifying trajectory of buoyant line-source gaseous fuel jet diffusion flames in cross air flows

机译:一种定量计算交叉气流中线状气源气态燃料喷射扩散火焰轨迹的新数学方法

获取原文
获取原文并翻译 | 示例
   

获取外文期刊封面封底 >>

       

摘要

The gas leakage from a gaseous fuel pipeline usually leads to a jet fire, which causes both enormous loss of energy and thermal threat to the surrounding objects. The potential wild fire risk is a significant issue and need to be paid sufficient attention. This paper investigates the vertical flame height, horizontal flame length and provides a new mathematical method to quantify the trajectory of the flame produced by a linear buoyant turbulent jet fire, which can be resulted in due to pipeline fuel leakage, in cross air flows. Experiments are carried out by a 2 mm (width) * 142.5 mm (length) line-source nozzle employing propane as fuel. The velocities of cross air flows are ranged from 0 m/s to 2.5 m/s. It is found that the vertical flame height and horizontal flame length can be well predicted by initial momentum ratio (r) and Froude number (Fr). A simple and easily applied explicit mathematical method is proposed to predict the trajectory length based on circumference approximation. All these findings can contribute to both combustion science and providing guidance for the wild jet fire risk assessment. (C) 2016 Elsevier Ltd. All rights reserved.
机译:气体燃料管道中的气体泄漏通常会导致喷射火,从而造成巨大的能量损失和对周围物体的热威胁。潜在的野火风险是一个重大问题,需要给予足够的重视。本文研究了垂直火焰高度,水平火焰长度,并提供了一种新的数学方法来量化由线性浮力湍流射流产生的火焰轨迹,这可能是由于管道燃料泄漏而导致的交叉气流。通过使用丙烷作为燃料的2毫米(宽)×142.5毫米(长)线源喷嘴进行实验。横气流的速度范围为0 m / s至2.5 m / s。通过初始动量比(r)和弗洛德数(Fr)可以很好地预测垂直火焰高度和水平火焰长度。提出了一种基于周长近似的简单易行的显式数学方法来预测弹道长度。所有这些发现可以为燃烧科学做出贡献,并为野外喷射火风险评估提供指导。 (C)2016 Elsevier Ltd.保留所有权利。

著录项

  • 来源
    《Fuel》 |2016年第1期|107-112|共6页
  • 作者单位

    Guangdong Univ Technol, Fac Environm Sci & Engn, Guangzhou, Guangdong, Peoples R China;

    Guangdong Univ Technol, Fac Environm Sci & Engn, Guangzhou, Guangdong, Peoples R China;

    Univ Sci & Technol China, State Key Lab Fire Sci, Hefei 230026, Anhui, Peoples R China;

    Guangdong Univ Technol, Fac Environm Sci & Engn, Guangzhou, Guangdong, Peoples R China;

    Univ Sci & Technol China, State Key Lab Fire Sci, Hefei 230026, Anhui, Peoples R China;

    Guangdong Univ Technol, Fac Environm Sci & Engn, Guangzhou, Guangdong, Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Gaseous fuel; Line-source slot nozzle; Buoyant turbulent jet flame; Cross air flow; Flame trajectory;

    机译:气体燃料;线源缝隙喷嘴;浮力湍流的喷射火焰;交叉气流;火焰轨迹;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号