SIMULATION OF A BUOYANCY-DRIVEN JET DIFFUSION FLAME

机译：浮力驱动的射流扩散火焰的模拟

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In order to improve our knowledge in turbulent combustion, it is of great interest to thoroughly investigate the interaction between a flame front and a single vortex. The aim of the present study is to simulate a buoyant uonpremixed H_2/O_2 jet flame. The natural instability of the jet is excited by gravity so that coherent structures appear periodically at a frequency of about 15Hz. The properties of the flame arc highly dependent on diffusion and local mixing induced by these large-scale structures. To compute this unsteady flame, we develop a low-Mach number code derived from a DNS solver that relies on detailed chemistry and transport models. The numerical results are successfully compared to the experimental measurments of OH mole fraction and temperature. In particular, this comparison shows a very good agreement in both shape and level for the temperature field.

机译：为了提高我们在湍流燃烧方面的知识，彻底研究火焰前沿与单个涡旋之间的相互作用非常重要。本研究的目的是模拟浮力预混合的H_2 / O_2喷射火焰。射流的自然不稳定性会因重力而激发，因此相干结构会以约15Hz的频率周期性出现。火焰的特性高度依赖于这些大型结构引起的扩散和局部混合。为了计算这种不稳定的火焰，我们开发了一个DNS解析器衍生的低马赫数代码，该解析器依赖于详细的化学和传输模型。数值结果已成功与OH摩尔分数和温度的实验测量结果进行了比较。特别地，该比较显示出在形状和水平上对于温度场的非常好的一致性。

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来源
《IUTAM Symposium on Turbulent Mixing and Combustion, Jun 3-6, 2001, Kingston, Ontario, Canada》|2001年|p.287-293|共7页
会议地点 Kingston(CA)
作者
J. de Charentenay; D. Thevenin; B. Zamuner;
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作者单位

ONERA, 29, avenue de la Division Leclerc, F-92322, Chatillon Cedex;

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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
jet diffusion flame; low-mach number; buoyancy instabilities;

机译：射流扩散火焰马赫数低浮力不稳定性;

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1. 浮升力对微射流扩散火焰影响的数值模拟研究 [J] . 刘磊, 赵明, 陈义坤, 中南大学学报（英文版） . 2020,第003期
2. Study of the performance of three micromixing models in transported scalar PDF simulations of a piloted jet diffusion flame ('Delft Flame III') [J] . Bart Merci, Dirk Roekaerts, Bertrand Naud Combustion and Flame . 2006,第3期

机译：飞行员喷射扩散火焰（“ Delft Flame III”）的传输标量PDF模拟中三种微混合模型的性能研究
3. Flow and mixing fields for transported scalar PDF simulations of a piloted jet diffusion flame ('Delft Flame III') [J] . Merci B, Naud B, Roekaerts D Flow, turbulence and combustion . 2005,第3期

机译：引导射流扩散火焰（“ Delft Flame III”）的标量PDF传输的流场和混合场
4. Reynolds-Averaged Navier–Stokes Simulations of Turbulence-Radiation Interaction in a Turbulent Diffusion Jet Flame [J] . Sukirt T., Gaikwad Pranit, Sreedhara S. Journal of Thermophysics and Heat Transfer . 2019,第3期

机译：雷诺平均纳维尔-斯托克斯在湍流扩散射流火焰中的湍流-辐射相互作用的模拟
5. SIMULATION OF A BUOYANCY-DRIVEN JET DIFFUSION FLAME [C] . J. de Charentenay, D. Thevenin, B. Zamuner IUTAM Symposium on Turbulent Mixing and Combustion . 2002

机译：浮力驱动喷射扩散火焰的模拟
6. Numerical simulations of diffusion jets and flames. [D] . Hosangadi, Ashvin. 1990

机译：扩散射流和火焰的数值模拟。
7. Quantitative Measurement of OH* and CH* Chemiluminescencein Jet Diffusion Flames [O] . Yao Liu, Jianguo Tan, Minggang Wan, 2020

机译：OH *和CH *化学发光的定量测量在喷射扩散火焰中
8. Flow and mixing fields for transported scalar PDF simulations of a piloted jet diffusion flame ('Delft Flame III') [O] . Merci, B., Naud, B., Roekaerts, D. 2012

机译：引导射流扩散火焰（“ Delft Flame III”）的标量PDF模拟输运和混合场
9. Two-Dimensional Direct Numerical Simulation of Opposed-Jet Hydrogen/Air Flames: Transition From a Diffusion to an Edge Flame [R] . Lee, J. , Frouzakis, C. E. , Boulouchos, K. 2000

机译：对流射流氢/空气火焰的二维直接数值模拟：从扩散到边缘火焰的过渡

SIMULATION OF A BUOYANCY-DRIVEN JET DIFFUSION FLAME

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