New spray flamelet equations considering evaporation effects in the mixture fraction space

Kun Luo; Jianren Fan; Kefa Cen

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New spray flamelet equations considering evaporation effects in the mixture fraction space

机译：考虑混合物部分空间蒸发影响的新喷雾火焰小方程

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New flamelet equations for spray combustion considering evaporation effects are derived in the mixture fraction space based on the instantaneous Eulerian transport equations for gas phase and Lagrangian descriptions for droplets. The novelty of these equations lies in some source terms related to evaporation which were neglected in previous studies. The influences of spray evaporation on flamelet structures are demonstrated by solving the steady spray flamelet equations. It is found that the evaporation source term may shift or even create new reaction zones, increase the chemical reaction rate, and change the profiles of scalars in the mixture fraction space. These comprehensive effects should be included in future spray combustion modeling.

机译：基于气相的瞬时欧拉输运方程和液滴的拉格朗日描述，在混合分数空间中导出了考虑蒸发效应的喷雾燃烧新火焰小方程。这些方程式的新颖之处在于一些与蒸发有关的源术语，这些术语在以前的研究中被忽略了。通过求解稳定的喷雾火焰小方程，证明了喷雾蒸发对火焰小结构的影响。发现蒸发源项可能会移动或什至创建新的反应区，增加化学反应速率，并改变混合物馏分空间中标量的分布。这些综合影响应包括在未来的喷雾燃烧模型中。

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来源
《Fuel》 |2013年第1期|1154-1157|共4页
作者
Kun Luo; Jianren Fan; Kefa Cen;
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作者单位

State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, PR China;

State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, PR China;

State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, PR China;

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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
flamelet equations; spray combustion; evaporation effects; inter-phase coupling; mixture fraction space;

机译：火焰方程;喷雾燃烧蒸发作用相间耦合混合分数空间;

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1. Closure of the scalar dissipation rate in the spray flamelet equations through a transport equation for the gradient of the mixture fraction [J] . Olguin Hernan, Scholtissek Arne, Gonzalez Sebastian, Combustion and Flame . 2019,第Octa期

机译：通过混合分数梯度的输运方程封闭喷雾小火焰方程中的标量耗散率
2. On the generalisation of the mixture fraction to a monotonic mixing-describing variable for the flamelet formulation of spray flames [J] . Franzelli Benedetta, Vie Aymeric, Ihme Matthias Combustion theory and modelling . 2015,第6期

机译：关于将混合物分数泛化为单调混合描述变量，用于喷雾火焰的小火焰配方
3. Modeling subgrid scale mixture fraction variance in LES of evaporating spray [J] . Cecile Pera, Julien Reveillon, Luc Vervisch, Combustion and Flame . 2006,第4期

机译：在蒸发喷雾的LES中模拟亚网格比例混合分数变化
4. Mixture Fraction and State Relationships in Diffusion Flames Interacting with an Evaporating Water Spray [C] . Praveen Narayanan, Arnaud Trouve, Paul G. Arias, US national combustion meeting . 2009

机译：与蒸发水喷雾相互作用的扩散火焰中的混合物分数和状态关系
5. An improved Representative Interactive Flamelet model accounting for evaporation effect in reaction space (RIF-ER). [D] . Keum, SeungHwan. 2009

机译：一种改进的代表交互式火焰小波模型，考虑了反应空间中的蒸发效应（RIF-ER）。
6. Comparison of the pulmonary dead-space fraction derived from ventilator volumetric capnography and a validated equation in the survival prediction of patients with acute respiratory distress syndrome [O] . Yu-Jiao Zhang, Xin-Jing Gao, Zhi-Bo Li, 2016

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7. On the generalisation of the mixture fraction to a monotonic mixing-describing variable for the flamelet formulation of spray flames [O] . Franzelli, Benedetta, Vié, Aymeric, Ihme, Matthias 2015

机译：关于将混合物分数泛化为单调混合描述变量，用于喷雾火焰的小火焰配方

New spray flamelet equations considering evaporation effects in the mixture fraction space

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