Unsteady droplet combustion with fuel thermal expansion

Vedha Nayagam; Daniel L. Dietrich; Forman A. Williams

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Unsteady droplet combustion with fuel thermal expansion

机译：燃料热膨胀使液滴燃烧不稳定

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摘要

Millimeter-size fuel droplets burning in microgravity show substantial thermal expansion at earlier times in their burning history. Here, we develop a simple model that accounts for thermal expansion of the liquid fuel and compare it against experimental measurements. The results show that excellent agreement with measured droplet-diameter histories throughout the hot-flame period of combustion is obtained when the effect of thermal expansion is included.

机译：在微重力中燃烧的毫米大小的燃料滴在其燃烧历史的早期显示出明显的热膨胀。在这里，我们开发了一个简单的模型来说明液体燃料的热膨胀，并将其与实验测量值进行比较。结果表明，当包含热膨胀的影响时，在整个燃烧过程中，与测量的液滴直径历史非常吻合。

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来源
《Combustion and Flame》 |2018年第9期|216-219|共4页
作者
Vedha Nayagam; Daniel L. Dietrich; Forman A. Williams;
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作者单位

Department of Mechanical and Aerospace Engineering, Case Western Reserve University;

NASA Glenn Research Center;

Department of Mechanical and Aerospace Engineering, University of California San Diego;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
原文格式 PDF
正文语种 eng
中图分类
关键词
Unsteady droplet combustion; Thermal expansion; Microgravity;

机译：液滴燃烧不稳定;热膨胀;微重力;

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专利

1. Thermal-drag and Transition from Quasi-steady to Highly-unsteady Combustion of a Fuel Droplet in the Presence of Upstream Velocity Oscillations [J] . Jangi M, Shaw B, Kobayashi H Flow, turbulence and combustion . 2010,第1期

机译：上游速度振荡下燃料液滴的热阻和从准稳态燃烧到高度不稳定燃烧的转变
2. Unsteady Combustion Model of Nonmetalized Organic Gel Fuel Droplet [J] . Bo He, Wansheng Nie, Haobo He Energy & fuels . 2012,第NOVaaDECa期

机译：非金属有机凝胶燃料滴的非定常燃烧模型
3. Transient analysis of sub-critical evaporation of fuel droplet in non-isothermal stagnant gaseous mixtures: effects of radiation and thermal expansion [J] . Elperin T, Krasovitov B Heat and mass transfer . 2006,第5期

机译：非等温停滞气体混合物中燃料滴亚临界蒸发的瞬态分析：辐射和热膨胀的影响
4. An Unsteady-State Analysis of Porous Sphere and Droplet Fuel Combustion under Microgravity Conditions [C] . M.K.King International symposium on combustion . 1996

机译：微重力条件下多孔球体和液滴燃料燃烧的非稳态分析
5. Modeling unsteady flame propagation over thermally thick solid fuels in a microgravity environment. [D] . Bullard, David Bradley. 1992

机译：在微重力环境中模拟火焰在热稠固体燃料上的不稳定传播。
6. Atomization characteristics and instabilities in the combustion of multi-component fuel droplets with high volatility differential [O] . D. Chaitanya Kumar Rao, Srinibas Karmakar, Saptarshi Basu -1

机译：高挥发性差的多组分燃料液滴的雾化特性和燃烧不稳定性
7. Effects of Carbon Dioxide on Unsteady Combustion of Isolated Fuel Droplet in Microgravity [O] . Shinji NAKAYA, Yoshiaki NAGASHIMA, Kohei TAKASE, 2010

机译：二氧化碳对微重力分离燃料液滴不稳定燃烧的影响
8. Thermal relations for two-phase expansion with phase equilibrium and example for combustion products of boron-containing fuel [R] . Tower, Leonard K 1957

机译：具有相平衡的两相膨胀的热关系和含硼燃料的燃烧产物的实例

Unsteady droplet combustion with fuel thermal expansion

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