Liquid fuel cloud detonation and droplet lifetime

IF 5.8 2区工程技术 Q2 ENERGY & FUELS

Combustion and Flame Pub Date : 2024-10-04 DOI:10.1016/j.combustflame.2024.113786

Taylor Brown, Rachel Hytovick, Anthony Morales, Joshua Berson, Sheikh Salauddin, Khaoula Chougag, Kareem Ahmed

引用次数: 0

Abstract

The structures and mechanisms of aerosolized liquid-fuel cloud detonations are studied in a detonation facility using simultaneous high-speed optical diagnostics. The characteristic length scale of the droplet lifetime in liquid fuel detonations is not well predicted by established breakup and evaporation models, whereas it captured by calculations of the evaporation time of the droplet cloud.

Novelty and significance statement

Detonation research has mostly focused on gaseous fuels with limited investigations of purely liquid fueled detonations. This research explores the characteristic length scales of aerosolized liquid fuel droplets’ lifetime showing it does not scale with established breakup and evaporation models. It scales well with the evaporation time of child droplet clouds, highlighting the significance.

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液体燃料云爆炸和液滴寿命

利用同步高速光学诊断技术，在爆炸设施中研究了气溶胶液体燃料云爆炸的结构和机理。已有的破裂和蒸发模型不能很好地预测液体燃料爆轰中液滴寿命的特征长度尺度，而液滴云蒸发时间的计算却能捕捉到这一特征长度尺度。这项研究探索了气溶胶液体燃料液滴寿命的特征长度尺度，结果表明它与既定的破裂和蒸发模型不一致。它与子液滴云的蒸发时间具有良好的比例关系，突出了其重要性。

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

Combustion and Flame 工程技术-工程：化工

CiteScore

9.50

自引率

20.50%

发文量

631

审稿时长

3.8 months

期刊介绍： The mission of the journal is to publish high quality work from experimental, theoretical, and computational investigations on the fundamentals of combustion phenomena and closely allied matters. While submissions in all pertinent areas are welcomed, past and recent focus of the journal has been on: Development and validation of reaction kinetics, reduction of reaction mechanisms and modeling of combustion systems, including: Conventional, alternative and surrogate fuels; Pollutants; Particulate and aerosol formation and abatement; Heterogeneous processes. Experimental, theoretical, and computational studies of laminar and turbulent combustion phenomena, including: Premixed and non-premixed flames; Ignition and extinction phenomena; Flame propagation; Flame structure; Instabilities and swirl; Flame spread; Multi-phase reactants. Advances in diagnostic and computational methods in combustion, including: Measurement and simulation of scalar and vector properties; Novel techniques; State-of-the art applications. Fundamental investigations of combustion technologies and systems, including: Internal combustion engines; Gas turbines; Small- and large-scale stationary combustion and power generation; Catalytic combustion; Combustion synthesis; Combustion under extreme conditions; New concepts.