A numerical study of the propagation of organic gellant-based fuel-rich premixed spray flames

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2016-04-21 DOI:10.1177/1756827716640709

J. Greenberg, LS Kagan, GI Sivashinsky

引用次数: 1

Abstract

The behavior of laminar rich, organic gellant-based premixed spray flames is investigated for the first time. The pulsating evaporation of such spray droplets, that has been observed experimentally, is accounted for. The numerical investigation discloses two main important findings. First, the phenomenon of the creation of flame hot-spots in organic gellant-based spray diffusion flames, associated with the pulsating evaporation, is absent in the premixed flame context. Second, the influence of the temperature of onset of the pulsations and their frequency on the propagation velocity of premixed gel spray flames was examined. These parameters were found to impact on whether the flame front moves steadily through the initial pre-mixture or whether it exhibits oscillations in its movement.

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有机胶凝基富燃料预混喷雾火焰传播的数值研究

本文首次研究了层流丰富的有机胶凝预混喷雾火焰的行为。在实验中观察到的这种喷雾液滴的脉动蒸发被解释了。数值调查揭示了两个主要的重要发现。首先，在预混合火焰中不存在有机胶凝喷雾扩散火焰中与脉动蒸发相关的火焰热点产生现象。其次，研究了脉动起始温度和脉动频率对预混合凝胶喷雾火焰传播速度的影响。这些参数对火焰锋面在初始预混料中是否稳定运动或在运动中是否表现出振荡有影响。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.