Large Eddy Simulation of Turbulent Stratified  Combustion Using Flame Surface Density

Journal of Propulsion Technology ›› 2018, Vol. 39 ›› Issue (3): 565-574.

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Large Eddy Simulation of Turbulent Stratified Combustion Using Flame Surface Density

Department of Thermal Science and Energy Engineering，University of Science and Technology of China，Hefei 230027，China,AECC Shenyang?Engine?Institute，Shenyang?110015，China,Department of Thermal Science and Energy Engineering，University of Science and Technology of China，Hefei 230027，China and Department of Thermal Science and Energy Engineering，University of Science and Technology of China，Hefei 230027，China

Published:2021-08-15

基于火焰面密度的湍流分层燃烧大涡模拟

于洲¹,张宏达²,叶桃红¹,唐鹏¹

中国科学技术大学热科学和能源工程系，安徽合肥 230027,中国航发沈阳发动机研究所，辽宁沈阳 110015,中国科学技术大学热科学和能源工程系，安徽合肥 230027,中国科学技术大学热科学和能源工程系，安徽合肥 230027

作者简介:于洲，男，硕士生，研究领域为湍流预混、分层燃烧的数值模拟。 E-mail: yuztc@mail.ustc.edu.cn 通讯作者:叶桃红，男，博士，副教授，研究领域为湍流燃烧理论和数值研究。
基金资助:
国家自然科学基金(91441117)。

Abstract

Abstract: Large eddy simulation was applied to investigate operating condition SwB5 of Cambridge stratified swirl burner， using flame surface density model to describe combustion process and thermo-chemsitry tabulation to determine major scalars， with the purpose to research flame structure of stratified combustion and develop suitable subgrid scale (sgs) combustion models for the stratified condition. The LES results show that the sgs model is well suit for the calculation of upstream， while it exists deviation in downstream， which may be caused by the wrinkling model adapted underestimate the shape change of turbulent to flame. The recirculation zone formed behind the bluff body is closed to stable owe to the re-laminarisation caused by heat release of combustion. As seen from the snapshot of Q function， a ring vortex formed near the pipe orifice by the Kelvin-Helmholtz flow instability. It can be confirmed from the snapshots of flame index that the premixed mode is dominant in SwB5.

Key words: Large eddy simulation；Flame surface density；Thermo-chemistry tabulation；Stratified combustion

摘要： 为了研究分层燃烧火焰结构、发展适用于分层条件的亚格子燃烧模型，采用火焰面密度模型描述燃烧过程，通过化学热力学建表方法确定主要标量信息，对剑桥分层旋流燃烧器SwB5工况进行大涡模拟研究。模拟结果表明，该亚格子燃烧模型可以很好地满足流场上游的计算，但是在下游存在偏差，这可能与所采用的皱褶因子模型低估了湍流对火焰的形变作用有关。由于燃烧放热引起的再层流化现象明显，钝体后回流区近似稳态。瞬时Q函数云图表明，流动在管口附近发生Kelvin-Helmholtz不稳定性并形成环状涡结构。瞬时、统计火焰因子云图表明SwB5的燃烧机制主要由预混燃烧主导。

关键词: 大涡模拟；火焰面密度；化学热力学建表；分层燃烧

YU Zhou¹,ZHANG Hong-da²,YE Tao-hong¹,TANG Peng¹. Large Eddy Simulation of Turbulent Stratified Combustion Using Flame Surface Density[J]. Journal of Propulsion Technology, 2018, 39(3): 565-574.

于洲,张宏达,叶桃红,唐鹏. 基于火焰面密度的湍流分层燃烧大涡模拟[J]. 推进技术, 2018, 39(3): 565-574.

References

[1] Zhang H, Han C, Ye T, et al. Large Eddy Simulation of Turbulent Premixed Combustion using Tabulated Detailed Chemistry and Presumed Probability Density Function[J]. Journal of Turbulence, 2016, 17: 327-355.
[2] Shi X, Chen J Y, Chen Z. Numerical Study of Laminar Flame Speed of Fuel-Stratified Hydrogen/Air Flames[J]. Combustion & Flame, 2015, 163: 394-405.
[3] Colin O, Ducros F, Veynante D, et al. A Thickened Flame Model for Large Eddy Simulations of Turbulent Premixed Combustion[J]. Physics of Fluids, 2000, 12(7): 1843-1863.
[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[J]. Symposium on Combustion, 1998, 27(1): 917-925.
[5] Pitsch H, Lageneste L D D. Large-Eddy Simulation of Premixed Turbulent Combustion Using a Level-Set Approach[J]. Proceedings of the Combustion Institute, 2002, 29(2): 2001-2008.
[6] Fiorina B, Vicquelin R, Auzillon P, et al. A Filtered Tabulated Chemistry Model for LES of Premixed Combustion[J]. Combustion and Flame, 2010, 157(3): 465-475.
[7] Jones W P, Prasad V N. LES-Pdf Simulation of a Spark Ignited Turbulent Methane Jet[J]. Proceedings of the Combustion Institute, 2011, 33(1): 1355-1363.
[8] Klimenko A Y, Bilger R W. Conditional Moment Closure for Turbulent Combustion[J]. Progress in Energy and Combustion Science, 1999, 25(6): 595-687.
[9] Ma T, Stein O T, Chakraborty N, et al. A Posteriori Testing of Algebraic Flame Surface Density Models for LES[J]. Combustion Theory and Modelling, 2013, 17(3): 431-482.
[10] Ma T, Stein O T, Chakraborty N, et al. A Posteriori Testing of the Flame Surface Density Transport Equation?for?LES[J]. Combustion Theory and Modelling, 2014, 18(1): 32-64.
[11] Marincola F C, Ma T, Kempf A M. Large Eddy Simulations of the Darmstadt Turbulent Stratified Flame Series[J]. Proceedings of the Combustion Institute, 2013, 34(1): 1307-1315.
[12] Butz D, Gao Y, Kempf A M, et al. Large Eddy Simulations of a Turbulent Premixed Swirl Flame Using an Algebraic Scalar Dissipation Rate Closure[J]. Combustion and Flame, 2015, 72(9): 3180-3196.
[13] 韩超, 张培, 叶桃红, 等. 不同湍流预混燃烧模型在本生灯火焰中的比较[J]. 推进技术, 2014, 35(8): 1086-1093. (HAN Chao, ZHANG Pei, YE Tao-hong, et al. A Comparison of Three Different Turbulent Premixed Combustion Models in Busen Flames[J]. Journal of Propulsion Technology, 2014, 35(8): 1086-1093.)
[14] Lecocq G, Richard S, Colin O, et al. Hybrid Presumed PDF and Flame Surface Density Approaches for Large-Eddy Simulation of Premixed Turbulent Combustion, Part 1: Formalism and Simulation of a Quasi-Steady Burner[J]. Combustion and Flame, 2011, 158(6): 1201-1214.
[15] Sweeney M S, Hochgreb S, Dunn M J, et al. The Structure of Turbulent Stratified and Premixed Methane/Air Flames I: Non-Swirling Flows[J]. Combustion and Flame, 2012, 159(9): 2896-2911.
[16] Zhang H, Han C, Ye T, et al. Large Eddy Simulation of Unconfined Turbulent Swirling Flow[J]. Science China Technological Sciences, 2015, 58(10): 1731-1744.
[17] 张宏达, 张济民, 韩超, 等. 大涡模拟研究钝体有旋流流场的拟序结构[J]. 航空学报, 2014, 35(7):1854-1864.
[18] Proch F, Kempf A M. Numerical Analysis of the Cambridge Stratified Flame Series Using Artificial Thickened Flame LES with Tabulated Premixed Flame Chemistry[J]. Combustion and Flame, 2014, 161(10): 2627-2646.
[19] Nambully S, Domingo P, Moureau V, et al. A Filtered-Laminar-Flame PDF Sub-Grid Scale Closure for LES of Premixed Turbulent Flames, Part I: Formalism and Application to a Bluff-Body Burner with Differential Diffusion[J]. Combustion and Flame, 2014, 161(7): 1756-1774.
[20] Mercier R, Schmitt T, Veynante D, et al. The Influence of Combustion SGS Submodels on the Resolved Flame Propagation.Application to the LES of the Cambridge Stratified Flames[J]. Proceedings of the Combustion Institute, 2015, 35(2): 1259-1267.
[21] Brauner T, Jones W P, Marquis A J. LES of the Cambridge Stratified Swirl Burner Using a Sub-Grid PDF Approach[J]. Flow, Turbulence and Combustion, 2016, 96(4): 1-21.
[22] 张宏达, 叶桃红, 陈靖, 等. 湍流贫燃预混射流火焰的大涡模拟[J]. 推进技术, 2015, 36(7): 1027-1035. (ZHANG Hong-da, YE Tao-hong, CHEN Jing, et al. Large Eddy Simulation of Turbulent Lean Premixed Jet Flame[J]. Journal of Propulsion Technology, 2015, 36(7): 1027-1035.)
[23] Bilger R W, St?rner S H, Kee R J. On Reduced Mechanisms for Methane Air Combustion in Nonpremixed Flames[J]. Combustion and Flame, 1990, 80(2): 135-149.
[24] Bray K, Domingo P, Vervisch L. Role of the Progress Variable in Models for Partially Premixed Turbulent Combustion[J]. Combustion and Flame, 2005, 141(4): 431-437.
[25] Pierce C D, Moin P. A Dynamic Model for Subgrid-Scale Variance and Dissipation Rate of a Conserved Scalar[J]. Physics of Fluids, 1998, 10(12): 3041-3044.
[26] Ma T, Gao Y, Kempf A M, et al. Validation and Implementation of Algebraic LES Modelling of Scalar Dissipation Rate for Reaction Rate Closure in Turbulent Premixed Combustion[J]. Combustion and Flame, 2014, 161(12): 3134-3153.
[27] Muppala S P R, Aluri N K, Dinkelacker F, et al. Development of an Algebraic Reaction Rate Closure for the Numerical Calculation of Turbulent Premixed Methane, Ethylene, and Propane/Air Flames for Pressures up to 1.0MPa[J]. Combustion and Flame, 2005, 140(4): 257-266.
[28] Pitsch H. FlameMaster v3.3.9:?A C++ Computer Program for 0D Combustion and 1D Laminar Flame Calculations[DB/OL]. http://www.stanford.edu/group/pitsch, 1998.
[29] Kamal M M, Barlow R S, Hochgreb S. Conditional Analysis of Turbulent Premixed and Stratified Flames on Local Equivalence Ratio and Progress of Reaction[J]. Combustion and Flame, 2015, 162(12): 1-18.
[30] 韩超, 张培, 叶桃红, 等. 甲烷/空气射流抬举火焰的大涡模拟计算[J]. 推进技术, 2014, 35(5): 654-660. (HAN Chao, ZHANG Pei, YE Tao-hong, et al. Large Eddy Simulation of CH4/Air Lifted Flame[J]. Journal of Propulsion Technology, 2014, 35(5): 654-660.)
[31] Floyd J, Kempf A M, Kronenburg A, et al. A Simple Model for the Filtered Density Function for Passive Scalar Combustion LES[J]. Combustion Theory and Modelling, 2009, 13(4): 559-588.
[32] 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 and Flame, 2005, 143(4): 566-586.
[33] Ihme M, Pitsch H. Prediction of Extinction and Reignition in Nonpremixed Turbulent Flames Using a Flamelet/Progress Variable Model: 2. Application in LES of Sandia Flames D and E[J]. Combustion and Flame, 2008, 155(1): 90-107.
[34] Smith G, Golden D, Frenklach M, et al. GRI-Mech 3.0, 2000[EB/OL] . http://www.me.berkeley.edu/gri_ mech, 2000.
[35] Zhou R, Balusamy S, Sweeney M S, et al. Flow Field Measurements of a Series of Turbulent Premixed and Stratified Methane/Air Flames[J]. Combustion and Flame, 2013, 160(10): 2017-2028.
[36] Jeong J, Hussain F. On the Identification of a Vortex[J]. Journal of Fluid Mechanics, 1995, 285(4): 69-94.
[37] Masri A R. Partial Premixing and Stratification in Turbulent Flames[J]. Proceedings of the Combustion Institute, 2015, 35(2): 1115-1136.
[38] Van Oijen J A, De Goey L P H. Modelling of Premixed Counterflow Flames Using the Flamelet-Generated Manifold Method[J]. Combustion Theory and Modelling, 2002, 6(3): 463-478.　　　　　　　　　　　　　*　收稿日期:2016-09-26；修订日期:2016-11-30。基金项目:国家自然科学基金(91441117)。作者简介:于洲,男,硕士生,研究领域为湍流预混、分层燃烧的数值模拟。 E-mail: yuztc@mail.ustc.edu.cn通讯作者:叶桃红,男,博士,副教授,研究领域为湍流燃烧理论和数值研究。E-mail: thye@ustc.edu.cn(编辑:张荣莉)

Large Eddy Simulation of Turbulent Stratified Combustion Using Flame Surface Density

基于火焰面密度的湍流分层燃烧大涡模拟

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