湍流预混燃烧逆梯度输运分布的数值研究

doi:10.13675/j.cnki.tjjs.190394

推进技术 ›› 2020, Vol. 41 ›› Issue (4): 840-846.DOI: 10.13675/j.cnki.tjjs.190394

湍流预混燃烧逆梯度输运分布的数值研究

虞达礼¹，陈方¹，刘洪¹

上海交通大学航空航天学院，上海 200240

发布日期:2021-08-15
作者简介:虞达礼，硕士生，研究领域为湍流燃烧数值模拟。E-mail：nbe511@sjtu.edu.cn
基金资助:
国家自然科学基金（11672183；91641129）。

Numerical Study on Distribution of Counter Gradient Transport in Turbulent Premixed Combustion

School of Aeronautics and Astronautics,Shanghai Jiao Tong University,Shanghai 200240,China

Published:2021-08-15

摘要/Abstract

摘要： 为了研究湍流预混火焰中逆梯度输运现象的发展、空间分布规律和相关流场控制因素，基于湍流火焰封闭模型(Turbulent Flame Closure,TFC)机理进行准一维分析，得出了当地标量通量的逆梯度输运分量随预混燃烧反应进度变量的关系。通过Moreau燃烧室模型的数值模拟,验证了准一维分析结果的适用性。在此基础上，通过多工况计算，对比研究了密度比对流场逆梯度输运分布的影响。结果表明：预混燃烧流场中标量通量的逆梯度输运现象总发生在火焰中更靠近未燃混合物一侧；增大密度比, 流场逆梯度输运特性增强且其区域向反应物侧靠拢。

关键词: 湍流预混燃烧;逆梯度输运;湍流火焰封闭模型;准一维计算

Abstract: In order to study the development pattern, spatial distribution and controllable factors of counter gradient transport phenomenon in turbulent premixed flame, a theoretical deduction based on the TFC model via quasi-one dimensional analysis is conducted，where the relationship between local counter gradient transport component of scalar flux and progress variable is obtained. The applicability of the theory is verified by numerical simulation of the Moreau combustion chamber. On this basis, the multi-case calculation is operated to discuss the effects of density ratio on the distribution of counter gradient transport. The results show that the counter gradient transport of scalar flux in the premixed combustion flow field always occurs in the area close to the unburned mixture. Increasing the density ratio, the counter gradient transport property will be enhanced while its region getting closer to the reactant.

Key words: Turbulent premixed combustion;Counter gradient transport;Turbulent Flame Closure model;Quasi-one-dimensional calculation

虞达礼，陈方，刘洪. 湍流预混燃烧逆梯度输运分布的数值研究[J]. 推进技术, 2020, 41(4): 840-846.

YU Da-li¹, CHEN Fang¹, LIU Hong¹. Numerical Study on Distribution of Counter Gradient Transport in Turbulent Premixed Combustion[J]. Journal of Propulsion Technology, 2020, 41(4): 840-846.

参考文献

[1] Cheng R K, Shepherd I G. The Influence of Burner Geometry on Premixed Turbulent Flame Propagation[J]. Combustion & Flame， 1991， 85(1-2): 7-26.
[2] Kalt P A M， Chen Y C， Bilger R W. Experimental Investigation of Turbulent Scalar Flux in Premixed Stagnation-type Flames[J]. Combustion & Flame， 2002， 129(4):401-415.
[3] Troiani G， Marrocco M， Giammartini S， et al. Counter-Gradient Transport in the Combustion of a Premixed CH₄/Air Annular Jet by Combined PIV/OH-LIF[J]. Combustion & Flame， 2009， 156(3): 608-620.
[4] Boger M， Veynante D， Boughanem H， et al. Direct Numerical Simulation Analysis of Flame Surface Density Concept for Large Eddy Simulation of Turbulent Premixed Combustion [C]. Boulder: 27th Symposium on Combustion， 1998: 917-925.
[5] Domingo P， Vervisch L， Payet S， et al. DNS of a Premixed Turbulent V Flame and LES of a Ducted Flame Using a FSD-PDF Subgrid Scale Closure with FPI-Tabulated Chemistry[J]. Combustion & Flame， 2005， 143(4):566-586.
[6] Lipatnikov A N ， Chomiak J . Effects of Premixed Flames on Turbulence and Turbulent Scalar Transport[J]. Progress in Energy & Combustion Science， 2010， 36(1): 1-102.
[7] Libby P A， Bray K N C. Countergradient Diffusion in Premixed Turbulent Flames[J]. AIAA Journal， 1981， 19(2): 205-213.
[8] Pope S B. Turbulent Premixed Flames[J]. Annual Review of Fluid Mechanics， 2003， 19(1): 237-270.
[9] Bray K N C. Turbulent Transport in Flames[J]. Proceedings of the Royal Society A: Mathematical， Physical and Engineering Sciences， 1995， 451(1941): 231-256.
[10] Zimont V L. Gas Premixed Combustion at High Turbulence. Turbulent Flame Closure Combustion Model[J]. Experimental Thermal & Fluid Science， 2000， 21(1-3)179-186.
[11] Yasari E， Verma S， Lipatnikov A N. RANS Simulations of Statistically Stationary Premixed Turbulent Combustion Using Flame Speed Closure Model[J]. Flow， Turbulence and Combustion， 2015， 94(2): 381-414.
[12] Kheirkhah S， Gülder ?mer L. Consumption Speed and Burning Velocity in Counter-Gradient and Gradient Diffusion Regimes of Turbulent Premixed Combustion[J]. Combustion & Flame， 2015， 162(4): 1422-1439.
[13] Sabelnikov V A， Lipatnikov A N. Recent Advances in Understanding of Thermal Expansion Effects in Premixed Turbulent Flames[J]. Annual Review of Fluid Mechanics， 2017， 49(1).
[14] Peters N. Laminar Flamelet Concepts in Turbulent Combustion[C]. Boulder: 27th Symposium on Combustion， 1988: 1231-1250.
[15] Zimont V L， Biagioli F， Syed K. Modelling Turbulent Premixed Combustion in the Intermediate Steady Propagation Regime[J]. Progress in Computational Fluid Dynamics， 2001， 1(2).
[16] Moreau P. Turbulent Flame Development in a High Velocity Premixed Flow[C]. Los Angeles: 15th Aerospace Sciences Meeting， 1977.
[17] Libby P A， Bray K N C. Implications of the Laminar Flamelet Model in Premixed Turbulent Combustion[J]. Combustion & Flame， 1980， 39(1): 33-41.

湍流预混燃烧逆梯度输运分布的数值研究

Numerical Study on Distribution of Counter Gradient Transport in Turbulent Premixed Combustion

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