火花相位对点火成功率影响的大涡模拟

王洪妍; 黄勇; 刘云峰; 章宏宙; 王惜伟

doi:10.13224/j.cnki.jasp.20220237

火花相位对点火成功率影响的大涡模拟

doi: 10.13224/j.cnki.jasp.20220237

王洪妍^{1, 2, 3,},
黄勇^{1, 2, 3,*, ,},
刘云峰^{1, 2, 3},
章宏宙^{1, 2, 3},
王惜伟^{1, 2, 3}

1.
北京航空航天大学能源与动力工程学院，北京 100191
2.
北京航空航天大学航空发动机气动热力国家级重点实验室，北京 100191
3.
先进航空发动机协同创新中心，北京 100191

基金项目: 国家科技重大专项（2017-Ⅲ-0007-0032）

详细信息

作者简介:
王洪妍（1998-），女，硕士生，主要从事燃烧室点熄火特性研究

通讯作者:
黄勇（1964-），男，教授、博士生导师，博士，主要从事燃烧室点熄火机理及预测研究等。E-mail: yhuang@buaa.edu.cn

中图分类号: V231.2⁺4
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- 文章访问数: 341
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- 被引次数: 0
出版历程
- 收稿日期: 2022-04-22
- 网络出版日期: 2022-09-15

Large eddy simulation on effect of spark phases on ignition reliability

WANG Hongyan^{1, 2, 3
,},
HUANG Yong^{1, 2, 3,*
, ,},
LIU Yunfeng^{1, 2, 3},
ZHANG Hongzhou^{1, 2, 3},
WANG Xiwei^{1, 2, 3}

1.
School of Energy and Power Engineering，Beihang University，Beijing 100191，China
2.
National Key Laboratory of Science and Technology on Aero-Engine Aero-thermodynamics，Beihang University，Beijing 100191，China
3.
Collaborative Innovation Center for Advanced Aero-Engine，Beijing 100191，China

摘要

摘要:
针对单头部模型燃烧室，利用大涡模拟方法计算不同时刻点火时火焰的动态传播过程，在一个流场脉动周期内研究火花相位变化对燃烧室点火成功率的影响。模拟结果表明：对于不断脉动的燃烧室流场，即使在可以点燃的工况范围之内，也不能确保单个火花脉冲在任意时刻都能实现成功点火。对比分析燃烧室流场频率与单个火花脉冲特性发现，单个火花脉冲的持续时间远小于流场脉动周期是导致火花相位严重影响点火成功率的根本原因。当采用大涡模拟方法研究点火问题时，为了消除火花相位对点火成功率的影响，建议采用连续多个火花脉冲点火方式代替单个火花脉冲点火方式，火花脉冲持续时间应该至少覆盖一个完整的流场脉动周期。
- 燃烧室 /
- 点火 /
- 频率 /
- 火花相位 /
- 大涡模拟
Abstract:
For the model combustor with a single dome, large eddy simulation was carried out to simulate the dynamic propagation process of flames at different ignition timing. In a pulsation cycle of the flow field, the effect of spark phases on ignition reliability was studied. The simulation results revealed that for the pulsating flow field in the model combustor, even within the range of ignition limits, the single spark pulse can not cause successful ignition at any spark phase. By comparing the frequency of the flow field with the characteristics of the single spark pulse, it was found that the duration of the single spark pulse was much shorter than the pulsation period of the flow field. This is the fundamental reason why spark phases seriously affect the ignition reliability. In order to eliminate the effect of spark phases on ignition reliability, it is suggested that a single spark pulse should be replaced by a series of spark pulses when using large eddy simulation to study ignition problems. And the duration of spark pulses should cover at least one complete pulsation cycle of the flow field.
- combustor /
- ignition /
- frequency /
- spark phase /
- large eddy simulation

HTML

图 1 燃烧室几何模型

Figure 1. Geometrical model of the combustor

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图 2 计算网格

Figure 2. Computational grids

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图 3 网格无关性验证

Figure 3. Verification of grid independence

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图 4 速度监测点位置

Figure 4. Location of the speed monitoring point

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图 5 监测点处速度大小的时域图

Figure 5. Time domain diagram of velocity magnitude at the monitoring point

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图 6 监测点处速度大小的频域图

Figure 6. Frequency domain diagram of velocity magnitude at the monitoring point

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图 7 点火中心位置

Figure 7. Location of the ignition center

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图 8 单个火花脉冲

Figure 8. Single spark pulse

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图 9 在50 ms启动单个火花点火的动态过程

Figure 9. Dynamic process of single spark ignition at 50 ms

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图 10 在58 ms启动单个火花点火的动态过程

Figure 10. Dynamic process of single spark ignition at 58 ms

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图 11 9个火花脉冲

Figure 11. Nine spark pulses

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图 12 在58 ms启动多个火花点火的动态过程

Figure 12. Dynamic process of multiple sparks ignition at 50 ms

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表 1 模拟工况

Table 1. Simulated condition

温度/K 压力/Pa 燃料质量流量/
（kg/s）空气质量流量/
（kg/s）

288 101325 0.0024 0.12

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表 2 不同火花相位的模拟结果

Table 2. Simulated results of different spark phases

算例启动点火时刻/ms 火花持续时间/ms 模拟结果

1 50 0.2 点火成功
2 58 0.2 点火失败

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表 3 不同火花脉冲的模拟结果

Table 3. Simulated results of different spark pulses

算例启动点火时刻/ms 火花持续时间/ms 模拟结果

2 58 0.2 点火失败
3 58 12.5 点火成功

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参考文献(22)

[1]	RANKIN D D. Lean combustion:technology and control[M]. London:Academic Press,2011.
[2]	GICQUEL L Y M,STAFFELBACH G,POINSOT T. Large eddy simulations of gaseous flames in gas turbine combustion chambers[J]. Progress in Energy and Combustion Science,2012,38(6): 782-817. doi: 10.1016/j.pecs.2012.04.004
[3]	ZHAO Dongmei,XIA Yifan,GE Haiwen,et al. Simulations of flame propagation during the ignition process in an annular multiple-injector combustor[J]. International Journal of Numerical Methods for Heat and Fluid Flow,2019,29(6): 1947-1964. doi: 10.1108/HFF-08-2018-0432
[4]	张腾. 基于大涡模拟的多旋流燃烧室两相燃烧研究[D]. 南京:南京航空航天大学,2018. ZHANG Teng. Large eddy simulation of the two-phase combustion in a multi-swirling combustor[D]. Nanjing:Nanjing University of Aeronautics and Astronautics,2018.(in Chinese)
[5]	JONES W P,LYRA S,NAVARRO-MARTINEZ S. Numerical investigation of swirling kerosene spray flames using large eddy simulation[J]. Combustion and Flame,2012,159(4): 1539-1561. doi: 10.1016/j.combustflame.2011.10.025
[6]	HERVO L,SENONER J M,BIANCHERIN A,et al. Large-eddy simulation of kerosene spray ignition in a simplified aeronautic combustor[J]. Flow Turbulence Combust,2018,101(2): 603-625. doi: 10.1007/s10494-018-9924-4
[7]	ECKEL G,GROHMANN J,CANTU L,et al. LES of a swirl-stabilized kerosene spray flame with a multi-component vaporization model and detailed chemistry[J]. Combustion and Flame,2019,207: 134-152. doi: 10.1016/j.combustflame.2019.05.011
[8]	JONES W P,TYLISZCZAK A. Large eddy simulation of spark ignition in a gas turbine combustor[J]. Flow,Turbulence and Combustion,2010,85(3): 711-734.
[9]	QIAO Yingjie,MAO Ronghai,LIN Yuzhen. Large eddy simulation of the ignition performance in a lean burn combustor[R].ASME Paper GT2015-43872,2015.
[10]	颜应文,赵坚行,张靖周,等. 环形燃烧室两相喷雾燃烧的大涡模拟[J]. 航空动力学报,2006,21(5): 824-830. doi: 10.3969/j.issn.1000-8055.2006.05.008 YAN Yingwen,ZHAO Jianxing,ZHANG Jingzhou,et al. Large-eddy simulation of turbulent spray combustion in an annular combustor[J]. Journal of Aerospace Power,2006,21(5): 824-830. (in Chinese) doi: 10.3969/j.issn.1000-8055.2006.05.008
[11]	杨洪磊,李雅军,杨仁,等. 燃气轮机燃烧室点火特性[J]. 舰船科学技术,2015,37(1): 60-63. doi: 10.3404/j.issn.1672-7649.2015.01.012 YANG Honglei,LI Yajun,YANG Ren,et al. Research on performance of gas turbine combustor ignition[J]. Ship Science and Technology,2015,37(1): 60-63. (in Chinese) doi: 10.3404/j.issn.1672-7649.2015.01.012
[12]	周瑜,黄渊,陈伟强,等. 高空来流条件下航空发动机双旋流燃烧室点火特性数值模拟[EB/OL]. [2022-04-17]. http://kns.cnki.net/kcms/detail/11.1813.V.20220222.1627.010.html.
[13]	FRANZELLI B,RIBER E,SANJOSÉ M,et al. A two-step chemical scheme for kerosene-air premixed flames[J]. Combustion and Flame,2010,157(7): 1364-1373. doi: 10.1016/j.combustflame.2010.03.014
[14]	LACAZE G,CUENOT B,POINSOT T,et al. Large eddy simulation of laser ignition and compressible flow in a rocket-like configuration[J]. Combust and Flame,2009,156(6): 1166-1180. doi: 10.1016/j.combustflame.2009.01.004
[15]	夏一帆. 面向航空发动机燃烧室点火问题的数值计算方法研究[D]. 杭州:浙江大学,2019. XIA Yifan. A study of numerical methods for the ignition process in aeroengine combustors[D]. Hangzhou:Zhejiang University,2019.(in Chinese)
[16]	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. doi: 10.1063/1.870436
[17]	ANGELBERGER C,EGOLFOPOULOS F,VEYNANTE D. Large eddy simulations of chemical and acoustic effects on combu-stion instabilities[J]. Flow,Turbulence and Combustion,2000,65(2): 205-222. doi: 10.1023/A:1011477030619
[18]	LEGIER J P,POINSOT T,VEYNANTE D. Dynamically thickened flame LES model for premixed and non-premixed turbulent combustion [C]//Proceedings of the Summer Program. Stanford,California:Stanford University,2000:157-168.
[19]	LACAZE G,RICHARDSON E,POINSOT T. Large eddy simulation of spark ignition in a turbulent methane jet[J]. Combustion and Flame,2009,156(10): 1993-2009. doi: 10.1016/j.combustflame.2009.05.006
[20]	BOILEAU M,STAFFELBACH G,CUENOT B,et al. LES of an ignition sequence in a gas turbine engine[J]. Combustion and Flame,2008,154(1/2): 2-22.
[21]	王凯兴,刘富强,范雄杰,等. 点火位置对中心分级燃烧室点火过程影响的研究[EB/OL]. [2022-04-17]. http://kns.cnki.net/kcms/detail/11.1813.V.20220222.1627.010.html.
[22]	BRANDT D E,WESORICK R R. GE gas turbine design philosophy[R]. Schenectady,US:GE Power Systems,1994.