Experimental investigation on the light-round pattern of triple-swirler combustor
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摘要:
针对三旋流基础燃烧室，运用10 kHz的液滴Mie散射和OH*化学发光同步成像技术，对航空煤油喷雾火焰点火联焰模式开展实验研究。研究表明：点火联焰过程包含类点火阶段与相邻旋流火焰发展阶段。类点火阶段具有“折线形”与“直线形”模式，相邻旋流火焰发展阶段具有“上游卷吸”“下游迟滞”与“多簇膨胀”模式。在不同空气流速、腔体压力和油气比工况条件下，“折线形-多簇膨胀”是点火联焰过程的主要模式；在点火联焰边界工况附近，“折线形-下游迟滞”模式出现概率较高，约为77.8%；在低空气流速或高油气比工况条件下，“直线形-多簇膨胀”模式占主导。
Abstract:The light-round pattern of kerosene spray flame in a triple-swirler combustor was investigated experimentally using simultaneous 10 kHz Mie scattering of droplet and OH* chemiluminescence (CL) measurements. It was shown that light-round pattern occurred in two different sub-phases, including the quasi-ignition phase and the adjacent swirling flame development phase. The linear and zigzag propagation patterns were identified in the former, and the upstream-entrainment (UE), downstream-hysteresis (DH), and multi-clusters-expansion (MCE) propagation patterns were recognized in the latter. The possibility of the light-round pattern was analyzed statistically. It was found that zigzag-MCE was the primary light-round pattern at different conditions with varying inlet air velocity, combustor pressure, and fuel-air ratio. However, under conditions near the light-round boundary, the zigzag-DH pattern appeared with a high probability of 77.8%. Similarly, under low air velocity or high fuel-air ratio, linear MCE patterns predominated.
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图 3 Case 2的瞬态旋流喷雾Mie散射图像
Figure 3. Instantaneous Mie scattering image of non-reacting swirling spray of Case 2
图 5 不同燃油流量旋流喷雾场平均轴向速度分布
Figure 5. Mean axial velocity distribution of non-reacting swirling spray under different kerosene flow rates
图 8 三旋流时均喷雾分布（Mie散射）与火焰形态（OH*化学发光的逆阿贝尔变换图像）叠加图
Figure 8. Overlaid of the averaged spray （Mie scattering） and flame （inverse Abel transform of OH*-CL） images
图 11 相邻旋流火焰发展阶段“上游卷吸”传播模式
Figure 11. UE propagation pattern in the adjacent swirling flame development phase
图 12 相邻旋流火焰发展阶段“下游迟滞”传播模式
Figure 12. DH propagation pattern in the adjacent swirling flame development phase
图 13 相邻旋流火焰发展阶段“多簇膨胀”传播模式
Figure 13. MCE propagation pattern in the adjacent swirling flame development phase
图 14 “折线形-上游卷吸”联焰模式（Case 8，f =
0.02701 ）Figure 14. Flame images of zigzag-UE propagation pattern （Case 8, f =
0.02701 ）
图 15 “折线形-下游迟滞”联焰模式（Case 2，f =
0.02148 ）Figure 15. Flame images of zigzag-DH propagation pattern （Case 2, f =
0.02148 ）
图 16 “折线形-多簇膨胀”联焰模式（Case 2，f =
0.02332 ）Figure 16. Flame images of zigzag-MCE propagation pattern （Case 2, f =
0.02332 ）
图 17 “直线形-上游卷吸”联焰模式（Case 8，f=
0.03407 ）Figure 17. Flame images of the linear-UE propagation pattern （Case 8, f =
0.03407 ）
图 18 “直线形-多簇膨胀”联焰模式（Case 8，f=
0.03407 ）Figure 18. Flame images of linear-MCE propagation pattern （Case 8, f =
0.03407 ）
图 19 类点火过程中特征区域内归一化火焰投影面积变化，根据其特征可归纳为折线形和直线形模式
Figure 19. Two flame propagation patterns defined by the normalized flame projection area variation in characteristic regions during the quasi-ignition phase
图 20 相邻旋流火焰建立过程中特征区域内归一化火焰投影面积变化，根据其特征可归纳为上游卷吸、下游迟滞和多簇膨胀模式
Figure 20. Three flame propagation patterns identified by the normalized flame projection area variation in characteristic regions of the adjacent swirling flame development phase
图 21 多工况下火焰传播模式统计
Figure 21. Statistics of flame propagation patterns under varying flame conditions
表 1 实验工况表
Table 1. Experimental conditions
工况 来流气动条件 空气质量流量Qm/（kg/h） 腔体压力p/Pa 空气流速V/（m/s） 油气比f Case 1 37.8 1.013×105 5 0.01964 ∶0.04910 Case 2 75.6 10 0.01719 ∶0.04051 Case 3 113.4 15 0.01228 ∶0.02455 Case 4 30.2 4.05×104 10 0.03683 ∶0.05524 Case 5 52.9 7.09×104 0.01929 ∶0.04735 Case 6 75.6 1.013×105 0.01719 ∶0.04051 Case 7 75.6 4.05×104 25 0.01473 ∶0.04420 Case 8 7.09×104 14 0.01534 ∶0.03437 Case 9 1.013×105 10 0.01719 ∶0.04051 
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表 2 火焰传播模式识别表
Table 2. Identification table of flame propagation patterns
阶段Ⅳ-1/
阶段Ⅳ-2上游卷吸 下游迟滞 多簇膨胀 折线形 √ √ √ 直线形 √ √ √
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[1] LEFEBVRE A H, BALLAL D R. Gas turbine combustion: alternative fuels and emissions[M]. Boca Raton: CRC Press, 2010. [2] LIEUWEN T C, YANG V. Gas turbine emissions[M]. Cambridge, England, U. K. : Cambridge University Press, 2013. [3] 肖为. 中心分级低污染燃烧室贫油熄火模型[J]. 航空动力学报, 2023, 38(5): 1038-1046. XIAO Wei. Lean blowout model for concentric staged low emission combustor[J]. Journal of Aerospace Power, 2023, 38(5): 1038-1046. (in ChineseXIAO Wei. Lean blowout model for concentric staged low emission combustor[J]. Journal of Aerospace Power, 2023, 38(5): 1038-1046. (in Chinese) [4] 李海涛, 许全宏, 付镇柏, 等. 中心分级燃烧室预燃级贫油熄火性能试验[J]. 航空动力学报, 2014, 29(9): 2188-2194. LI Haitao, XU Quanhong, FU Zhenbo, et al. Experiment on lean blow-out performance of pilot stage in internally-staged combustor[J]. Journal of Aerospace Power, 2014, 29(9): 2188-2194. (in ChineseLI Haitao, XU Quanhong, FU Zhenbo, et al. Experiment on lean blow-out performance of pilot stage in internally-staged combustor[J]. Journal of Aerospace Power, 2014, 29(9): 2188-2194. (in Chinese) [5] READ R W, ROGERSON J W, HOCHGREB S. Flame imaging of gas-turbine relight[J]. AIAA Journal, 2010, 48(9): 1916-1927. doi: 10.2514/1.J050105 [6] MASTORAKOS E. Ignition of turbulent non-premixed flames[J]. Progress in Energy and Combustion Science, 2009, 35(1): 57-97. doi: 10.1016/j.pecs.2008.07.002 [7] MASTORAKOS E. Forced ignition of turbulent spray flames[J]. Proceedings of the Combustion Institute, 2017, 36(2): 2367-2383. doi: 10.1016/j.proci.2016.08.044 [8] CORDIER M, VANDEL A, CABOT G, et al. Laser-induced spark ignition of premixed confined swirled flames[J]. Combustion Science and Technology, 2013, 185(3): 379-407. [9] DONG Rongxiao, LEI Qingchun, ZHANG Qun, et al. Dynamics of ignition kernel in a liquid-fueled gas turbine model combustor studied via time-resolved 3D measurements[J]. Combustion and Flame, 2021, 232: 111566. doi: 10.1016/j.combustflame.2021.111566 [10] YANG Siheng, ZHANG Chi, LIN Yuzhen, et al. Experimental investigation of the ignition process in a separated dual-swirl spray flame[J]. Combustion and Flame, 2020, 219: 161-177. doi: 10.1016/j.combustflame.2020.05.010 [11] WANG Xiwei, HUANG Yong, LIU Yunfeng, et al. Effect of the ignition location on lean light-off limits for a gas turbine combustor[J]. Combustion and Flame, 2022, 245: 112295. doi: 10.1016/j.combustflame.2022.112295 [12] MA Jinglong, HUI Xin, HAN Xiao, et al. The effect and mechanism of the flow deflector on ignition performance of the centrally staged combustor[J]. Physics of Fluids, 2023, 35(2): 027113. doi: 10.1063/5.0139145 [13] RUAN Can, HE Zhuoyao, FENG Xiaoxing, et al. Experimental study of axial spark location effects on transient flame/flow dynamics during ignition in a kerosene-fueled gas turbine model combustor[J]. Fuel, 2022, 323: 124336. doi: 10.1016/j.fuel.2022.124336 [14] BOURGOUIN J F, DUROX D, SCHULLER T, et al. Ignition dynamics of an annular combustor equipped with multiple swirling injectors[J]. Combustion and Flame, 2013, 160(8): 1398-1413. doi: 10.1016/j.combustflame.2013.02.014 [15] PRIEUR K, DUROX D, BEAUNIER J, et al. Ignition dynamics in an annular combustor for liquid spray and premixed gaseous injection[J]. Proceedings of the Combustion Institute, 2017, 36(3): 3717-3724. doi: 10.1016/j.proci.2016.08.008 [16] PHILIP M, BOILEAU M, VICQUELIN R, et al. Large eddy simulations of the ignition sequence of an annular multiple-injector combustor[J]. Proceedings of the Combustion Institute, 2015, 35(3): 3159-3166. doi: 10.1016/j.proci.2014.07.008 [17] LANCIEN T, PRIEUR K, DUROX D, et al. Large eddy simulation of light-round in an annular combustor with liquid spray injection and comparison with experiments[J]. Journal of Engineering for Gas Turbines and Power, 2018, 140(2): 021504. doi: 10.1115/1.4037827 [18] TÖPPERWIEN K, PUGGELLI S, VICQUELIN R. Analysis of flame propagation mechanisms during light-round in an annular spray flame combustor: the impact of wall heat transfer and two-phase flow[J]. Combustion and Flame, 2022, 241: 112105. doi: 10.1016/j.combustflame.2022.112105 [19] MARRERO-SANTIAGO J, VERDIER A, VANDEL A, et al. Effect of injector spacing in the light-around ignition efficiency and mechanisms in a linear swirled spray burner[J]. Heat and Mass Transfer, 2019, 55(7): 1871-1885. doi: 10.1007/s00231-018-2433-0 [20] BARRÉ D, ESCLAPEZ L, CORDIER M, et al. Flame propagation in aeronautical swirled multi-burners: Experimental and numerical investigation[J]. Combustion and Flame, 2014, 161(9): 2387-2405. doi: 10.1016/j.combustflame.2014.02.006 [21] COLLIN-BASTIANI F, RIBER E, CUENOT B. Study of inter-sector spray flame propagation in a linear arrangement of swirled burners[J]. Proceedings of the Combustion Institute, 2021, 38(4): 6299-6308. doi: 10.1016/j.proci.2020.05.050 [22] LI Wei, WANG Yibo, LIU Yunpeng, et al. Experimental investigation of ignition mode and performance of the annular combustor[J]. Fuel, 2022, 328: 125295. doi: 10.1016/j.fuel.2022.125295 [23] LI Wei, DI Dong, LIU Yunpeng, et al. Effect of a head geometry structure on the ignition performance of a combustor[J]. Aerospace Science and Technology, 2022, 123: 107428. doi: 10.1016/j.ast.2022.107428 [24] MACHOVER E, MASTORAKOS E. Spark ignition of annular non-premixed combustors[J]. Experimental Thermal and Fluid Science, 2016, 73: 64-70. doi: 10.1016/j.expthermflusci.2015.09.008 [25] MACHOVER E, MASTORAKOS E. Experimental investigation on spark ignition of annular premixed combustors[J]. Combustion and Flame, 2017, 178: 148-157. doi: 10.1016/j.combustflame.2017.01.013 [26] WANG Gaofeng, ZHONG Liang, YANG Yao, et al. Experimental investigation of the ignition dynamics in an annular premixed combustor with oblique-injecting swirling burners[J]. Fuel, 2021, 287: 119494. doi: 10.1016/j.fuel.2020.119494 [27] YE C R, WANG G F, FANG Y Q, et al. Ignition dynamics in an annular combustor with gyratory flow motion: GT2018-76624 [R]. Oslo: ASME Turbo Expo 2018: Turbomachinery Technical Conference and Exposition, 2018. [28] XIA Yifan, LINGHU Changhong, ZHENG Yao, et al. Experimental investigation of the flame front propagation characteristic during light-round ignition in an annular combustor[J]. Flow, Turbulence and Combustion, 2019, 103(1): 247-269. doi: 10.1007/s10494-019-00018-y [29] WANG Hui, ZHONG Liang, BARAKAT E, et al. Experimental investigation on the ignition dynamics of an annular combustor with multiple centrally staged swirling burners[J]. Physics of Fluids, 2022, 34(7): 075103. doi: 10.1063/5.0095756 [30] 叶沉然. 环形燃烧室周向点火机理实验研究[D]. 杭州: 浙江大学, 2019. YE Chenran. Experimental study on circumferential ignition mechanism of annular combustion chamber[D]. Hangzhou: Zhejiang University, 2019. (in ChineseYE Chenran. Experimental study on circumferential ignition mechanism of annular combustion chamber[D]. Hangzhou: Zhejiang University, 2019. (in Chinese) [31] 王高峰, 夏一帆, 叶沉然, 等. 环形燃烧室周向点火机理基础研究进展[J]. 实验流体力学, 2019, 33(1): 14-28. WANG Gaofeng, XIA Yifan, YE Chenran, et al. Progress on light-round ignition dynamics in annular combustor[J]. Journal of Experiments in Fluid Mechanics, 2019, 33(1): 14-28. (in Chinese doi: 10.11729/syltlx20180090WANG Gaofeng, XIA Yifan, YE Chenran, et al. Progress on light-round ignition dynamics in annular combustor[J]. Journal of Experiments in Fluid Mechanics, 2019, 33(1): 14-28. (in Chinese) doi: 10.11729/syltlx20180090 [32] GAO Wei, YANG Jinhu, LIU Fuqiang, et al. Experimental investigation on the flame propagation pattern of a staged partially premixed annular combustor[J]. Combustion and Flame, 2021, 230: 111445. doi: 10.1016/j.combustflame.2021.111445 [33] GAO Wei, WANG Shaolin, LIU Fuqiang, et al. Comparison of ignition characteristics between annular and multi-sector combustor[J]. Journal of the Energy Institute, 2022, 104: 55-66. doi: 10.1016/j.joei.2022.06.007 [34] GAO Wei, YANG Jinghu, MU Yong, et al. Experimental investigation on spark ignition of a staged partially premixed annular combustor[J]. Fuel, 2021, 302: 121062. doi: 10.1016/j.fuel.2021.121062 [35] 吴昀辉, 傅宸, 高怡, 等. 声激励下旋流钝体火焰的非线性响应实验[J]. 航空动力学报, 2022, 37(9): 1872-1885. WU Yunhui, FU Chen, GAO Yi, et al. Experiment on nonlinear response of swirling bluff-body flame with external acoustic forcing[J]. Journal of Aerospace Power, 2022, 37(9): 1872-1885. (in ChineseWU Yunhui, FU Chen, GAO Yi, et al. Experiment on nonlinear response of swirling bluff-body flame with external acoustic forcing[J]. Journal of Aerospace Power, 2022, 37(9): 1872-1885. (in Chinese) [36] CAVALIERE D E. Blow-off in gas turbine combustors[D]. Cambridge, East of England, UK: University of Cambridge, 2014. [37] PICANO F, BATTISTA F, TROIANI G, et al. Dynamics of PIV seeding particles in turbulent premixed flames[J]. Experiments in Fluids, 2011, 50(1): 75-88. doi: 10.1007/s00348-010-0896-y [38] PAWLOWSKI R P, SALINGER A G, SHADID J N, et al. Bifurcation and stability analysis of laminar isothermal counterflowing jets[J]. Journal of Fluid Mechanics, 2006, 551: 117-139. doi: 10.1017/S0022112005008396 [39] POTDAR U, JAMGADE A, MAHYAVANSHI P, et al. Experimental investigations on stabilization mechanism of lifted kerosene spray flames[J]. Combustion Science and Technology, 2017, 189(7): 1241-1259. doi: 10.1080/00102202.2017.1280482 [40] YANG Xingyu, FAN Weijun, ZHANG Rongchun. Experimental study of the fuel spray and ignition characteristics in an aeroengine afterburner under subatmospheric pressure[J]. Aerospace Science and Technology, 2024, 144: 108793. doi: 10.1016/j.ast.2023.108793 [41] SANTHOSH R, BASU S. Transitions and blowoff of unconfined non-premixed swirling flame[J]. Combustion and Flame, 2016, 164: 35-52. doi: 10.1016/j.combustflame.2015.10.034 -
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