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NONPREMIXED TURBULENT FLAMES INVESTIGATED WITH DIRECT NUMERICAL SIMULATION USING DETAILED CHEMISTRY

机译：使用详细化学方法对直接火焰模拟的非固定湍流火焰进行了研究

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Turbulent nonprernixed H_2/Air flames are simulated using direct numerical simulations coupled with detailed chemical schemes, complex transport models and accurate therrnodynamic parameters. Typical results and post-processing procedures based on these results are presented in this paper. The choice and definition of a mixture fraction appropriate to describe turbulent mixing is discussed. The influence of differential diffusion is investigated comparing the present results with similar computations using a unity Lewis number hypothesis. Differences due to differential diffusion concerning global flame structure as well as conditionally-averaged quantities are emphasized.

机译：使用直接数值模拟，详细的化学方案，复杂的传输模型和精确的热力学参数，对湍流的非尖锐H_2 /空气火焰进行了模拟。本文介绍了典型结果和基于这些结果的后处理程序。讨论了适合描述湍流混合的混合馏分的选择和定义。使用统一的Lewis数假设，比较了当前结果与类似计算结果，研究了微分扩散的影响。强调了由于涉及整体火焰结构的差异扩散以及有条件的平均数量而引起的差异。

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来源
《》|2001年|p.251-258|共8页
会议地点 Kingston(CA)
作者
Renan Hilbert; Dominique Thevenin;
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作者单位

Laboratoire EM2C, Ecole Centrale Paris Grande Voie des Vignes, 92295 Chdtenay-Malabry, FRANCE;

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会议组织
原文格式 PDF
正文语种 eng
中图分类力学;
关键词
direct numerical simulation; detailed chemistry; differential diffusion; turbulent combustion; nonprernixed flame;

机译：直接数值模拟；详细化学；微分扩散湍流燃烧无刺火焰;

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1. Two-dimensional direct numerical simulation of nanoparticle precursor evolution in turbulent flames using detailed chemistry [J] . Ravi Singh, Venkat Raman Chemical engineering journal . 2012,第Null期

机译：使用详细化学方法在湍流火焰中纳米颗粒前体演化的二维直接数值模拟
2. The effect of flame structure on soot formation and transport in turbulent nonpremixed flames using direct numerical simulation [J] . David O. Lignell, Jacqueline H. Chen, Philip J. Smith, Combustion and Flame . 2007,第1a2期

机译：直接数值模拟研究火焰结构对湍流非预混火焰中烟灰形成和迁移的影响
3. Direct numerical simulations analysis of flame surface density models for nonpremixed turbulent combustion [J] . Van Kalmthout E., Veynante D. Physics of fluids . 1998,第9期

机译：非预混湍流燃烧火焰表面密度模型的直接数值模拟分析
4. Nonpremixed turbulent flames investigated with direct numerical simulation using detailed chemistry [C] . Renan Hilbert, Dominique Thevenin IUTAM Symposium on Turbulent Mixing and Combustion . 2002

机译：使用详细化学研究，采用直接数值模拟研究了非增值湍流火焰
5. Direct numerical simulation of soot formation and transport in turbulent nonpremixed ethylene flames [D] . Lignell, David Owen 2008

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7. Investigation of soot morphology and particle size distrib ution in a turbulent nonpremixed flame via Monte Carlo simulations [O] . Abdelgadir Ahmed, Lucchesi Marco, Attili Antonio, 2015

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NONPREMIXED TURBULENT FLAMES INVESTIGATED WITH DIRECT NUMERICAL SIMULATION USING DETAILED CHEMISTRY

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