Ignition, extinction and flame crossover characteristics of dual-vortex-controlled radial staged combustor
-
摘要:
为探究一种新型双涡控径向分级燃烧室的点熄火及联焰特性，试验研究了不同工作模式下燃烧室凹腔和主流区的点火联焰机制、稳定燃烧形态以及不同工况下燃烧室的点熄火特性。研究表明，外环凹腔和主流区单独供油时燃烧室均可成功点火，并且外环凹腔与主流区相互间可实现联焰和稳定燃烧，两种联焰方式下稳定燃烧火焰形态基本一致，分布在凹腔内及其下游区域和旋流杯下游区域；外环凹腔常温常压贫油点火油气比最低为
0.0094 ，慢车贫油熄火油气比最低为0.0034 ，其相比主流区具有更加优异的点熄火性能。Abstract:To investigate the ignition, extinction and flame crossover characteristics of a newly designed dual-vortex-controlled radial staged combustor, an experimental study was conducted to examine the ignition and flame propagation mechanisms in the concave cavity and mainstream zone under different operating modes, as well as stable combustion patterns and the ignition/extinction characteristics of the combustor under various operating conditions. The results indicated that the combustor could be successfully ignited when fuel was independently supplied to either the outer-ring concave cavity or the mainstream zone, flame propagation and stable combustion were also achievable between the outer-ring concave cavity and the mainstream zone. Under both flame propagation modes, the stabilized combustion flame exhibited consistent pattern, and distributed within the concave cavity, its downstream region and the downstream of the swirl cup. The outer-ring concave cavity achieved a minimum fuel-air ratio of
0.0094 for ignition and0.0034 for extinction under room temperature and atmospheric pressure conditions, demonstrating significantly superior ignition/extinction performance compared with the mainstream zone. -
图 1 双涡控径向分级燃烧室燃烧组织方案
Figure 1. Combustion organization scheme of the dual-vortex-controlled radial staged combustor
图 3 双涡控径向分级燃烧室试验件模型
Figure 3. Digital model of the dual-vortex-controlled radial staged combustor
图 4 双涡控径向分级燃烧室试验件实物
Figure 4. Physical object of the dual-vortex-controlled radial staged combustor
图 7 双涡控径向分级燃烧室点火过程
Figure 7. Ignition process of the dual-vortex-controlled radial staged combustor
图 9 两种供油模式下油雾分布数值模拟结果
Figure 9. Simulation results of fuel spray distribution under two fuel supply modes
图 10 不同进口马赫数下外环凹腔稳定燃烧火焰形态
Figure 10. Flame pattern of stable combustion in the outer-ring concave cavity under different inlet Mach numbers
图 11 不同进口马赫数下主流旋流杯稳定燃烧火焰形态
Figure 11. Flame pattern of stable combustion in the mainstream of swirl cup under different inlet Ma
图 12 外环凹腔向主流联焰过程
Figure 12. Flame propagation from outer-ring concave cavity to mainstream
图 13 主流向外环凹腔联焰过程
Figure 13. Flame propagation from mainstream to outer-ring concave cavity
图 14 两种联焰方式稳定燃烧火焰形态
Figure 14. Flame pattern of stable combustion under two flame propagation modes
图 17 不同工作模式燃烧室熄火特性
Figure 17. Extinction characteristics of combustor under different operating modes
图 18 环境压力对外环凹腔熄火特性的影响
Figure 18. Effect of pressure on extinction characteristics of the outer-ring concave cavity
表 1 燃烧室点熄火试验工况
Table 1. Test conditions of ignition/extinction
Case p3/MPa T3/K Ma 1 常压 常温 0.015～0.06 2 0.3 423 0.025～0.06 3 0.1, 0.2, 0.3 316 0.06 
下载: 导出CSV
-
[1] 尉曙明. 先进燃气轮机燃烧室设计研发[M]. 上海: 上海交通大学出版社, 2014. [2] Bahr D. Technology for the design of high temperature rise combustors[R]. AIAA-1985-1292, 1985. [3] 房人麟, 邱伟, 邓远灏, 等. 双级旋流多点喷射燃烧室试验研究[J]. 推进技术, 2016, 37(9): 1720-1726. Fang Renlin, Qiu Wei, Deng Yuanhao, et al. Experimental investigation of twin annular Muti-point direct injection mixing combustor[J]. Journal of Propulsion Technology, 2016, 37(9): 1720-1726. (in Chinese doi: 10.13675/j.cnki.tjjs.2016.09.016Fang Renlin, Qiu Wei, Deng Yuanhao, et al. Experimental investigation of twin annular Muti-point direct injection mixing combustor[J]. Journal of Propulsion Technology, 2016, 37(9): 1720-1726. (in Chinese) doi: 10.13675/j.cnki.tjjs.2016.09.016 [4] 钟世林, 邓远灏, 马存祥, 等. 航空发动机燃烧技术发展与展望[J]. 燃气涡轮试验与研究, 2025, 38(2): 33-44. Zhong Shilin, Deng Yuanhao, Ma Cunxiang, et al. Development and prospects of advanced combustion technologies for aero-engines[J]. Gas Turbine Experiment and Research, 2025, 38(2): 33-44. (in Chinese doi: 10.3724/j.GTER.20250027Zhong Shilin, Deng Yuanhao, Ma Cunxiang, et al. Development and prospects of advanced combustion technologies for aero-engines[J]. Gas Turbine Experiment and Research, 2025, 38(2): 33-44. (in Chinese) doi: 10.3724/j.GTER.20250027 [5] 何小民, 许金生, 苏俊卿. 驻涡燃烧室燃烧性能试验[J]. 航空动力学报, 2009, 24(2): 318-323. He Xiaomin, Xu Jinsheng, Su Junqing. Experimental research of the performance of the trapped-vortex combustor[J]. Journal of Aerospace Power, 2009, 24(2): 318-323. (in Chinese doi: 10.13224/j.cnki.jasp.2015.01.003He Xiaomin, Xu Jinsheng, Su Junqing. Experimental research of the performance of the trapped-vortex combustor[J]. Journal of Aerospace Power, 2009, 24(2): 318-323. (in Chinese) doi: 10.13224/j.cnki.jasp.2015.01.003 [6] Hsu K, Goss L, Trump D, et al. Performance of a trapped-vortex combustor[R]. AIAA-1995-0810, 1995. [7] 何小民, 张净玉. 驻涡燃烧室燃烧组织方式和设计思路分析[J]. 航空科学技术, 2008, 19(2): 26-29. He Xiaomin, Zhang Jingyu. Combustion buildup and design routine of traped vortex corn bustor[J]. Aeronautical Science & Technology, 2008, 19(2): 26-29. (in Chinese doi: 10.3969/j.issn.1007-5453.2008.02.007He Xiaomin, Zhang Jingyu. Combustion buildup and design routine of traped vortex corn bustor[J]. Aeronautical Science & Technology, 2008, 19(2): 26-29. (in Chinese) doi: 10.3969/j.issn.1007-5453.2008.02.007 [8] 何小民, 王家骅. 驻涡火焰稳定器冷态流场特性的初步研究[J]. 航空动力学报, 2002, 17(5): 567-571. He Xiaomin, Wang Jiahua. An investigation on the fluid characteristics of trapped-vortex combustor[J]. Journal of Aerospace Power, 2002, 17(5): 567-571. (in Chinese doi: 10.3969/j.issn.1000-8055.2002.05.012He Xiaomin, Wang Jiahua. An investigation on the fluid characteristics of trapped-vortex combustor[J]. Journal of Aerospace Power, 2002, 17(5): 567-571. (in Chinese) doi: 10.3969/j.issn.1000-8055.2002.05.012 [9] 蒋波, 何小民, 金义, 等. 低排放驻涡燃烧室冷态流场特性试验[J]. 航空动力学报, 2013, 28(8): 1719-1726. Jiang Bo, He Xiaomin, Jin Yi, et al. Experimental investigation on cold flow field characteristics of low emission trapped-vortex combustor[J]. Journal of Aerospace Power, 2013, 28(8): 1719-1726. (in Chinese doi: 10.13224/j.cnki.jasp.2013.08.010Jiang Bo, He Xiaomin, Jin Yi, et al. Experimental investigation on cold flow field characteristics of low emission trapped-vortex combustor[J]. Journal of Aerospace Power, 2013, 28(8): 1719-1726. (in Chinese) doi: 10.13224/j.cnki.jasp.2013.08.010 [10] 樊未军, 易琪, 严明, 等. 驻涡燃烧室凹腔双涡结构研究[J]. 中国电机工程学报, 2006, 26(9): 66-70. Fan Weijun, Yi Qi, Yan Ming, et al. A study of double vortex structure in the trapped vortex combustor[J]. Proceedings of the CSEE, 2006, 26(9): 66-70. (in Chinese doi: 10.3321/j.issn:0258-8013.2006.09.013Fan Weijun, Yi Qi, Yan Ming, et al. A study of double vortex structure in the trapped vortex combustor[J]. Proceedings of the CSEE, 2006, 26(9): 66-70. (in Chinese) doi: 10.3321/j.issn:0258-8013.2006.09.013 [11] 樊未军, 孔昭健, 邢菲, 等. 凹腔驻涡模型燃烧室内涡的演化发展[J]. 航空动力学报, 2007, 22(6): 888-892. Fan Weijun, Kong Zhaojian, Xing Fei, et al. Vortexes evolvement and development in the model of trapped vortex combustor[J]. Journal of Aerospace Power, 2007, 22(6): 888-892. (in Chinese doi: 10.3969/j.issn.1000-8055.2007.06.008Fan Weijun, Kong Zhaojian, Xing Fei, et al. Vortexes evolvement and development in the model of trapped vortex combustor[J]. Journal of Aerospace Power, 2007, 22(6): 888-892. (in Chinese) doi: 10.3969/j.issn.1000-8055.2007.06.008 [12] Zhang Rongchun, Fan Weijun. Flow field measurements in the cavity of a trapped vortex combustor using PIV[J]. Journal of Thermal Science, 2012, 21(4): 359-367. doi: 10.1007/s11630-012-0556-z [13] 邢菲, 孟祥泰, 李继保, 等. 凹腔双驻涡稳焰冷态流场初步研究[J]. 推进技术, 2008, 29(2): 135-138. Xing Fei, Meng Xiangtai, Li Jibao, et al. Elementary study on cool flow field of double vortex in cavity for flame stabilization[J]. Journal of Propulsion Technology, 2008, 29(2): 135-138. (in Chinese doi: 10.3321/j.issn:1001-4055.2008.02.002Xing Fei, Meng Xiangtai, Li Jibao, et al. Elementary study on cool flow field of double vortex in cavity for flame stabilization[J]. Journal of Propulsion Technology, 2008, 29(2): 135-138. (in Chinese) doi: 10.3321/j.issn:1001-4055.2008.02.002 [14] 李瑞明, 刘玉英, 刘河霞, 等. 驻涡燃烧室主流对凹腔涡流动的影响[J]. 航空动力学报, 2009, 24(7): 1482-1487. Li Ruiming, Liu Yuying, Liu Hexia, et al. Impact of mainstream on the vortex flow of cavity in trapped vortex combustor[J]. Journal of Aerospace Power, 2009, 24(7): 1482-1487. (in Chinese doi: 10.13224/j.cnki.jasp.2009.07.012Li Ruiming, Liu Yuying, Liu Hexia, et al. Impact of mainstream on the vortex flow of cavity in trapped vortex combustor[J]. Journal of Aerospace Power, 2009, 24(7): 1482-1487. (in Chinese) doi: 10.13224/j.cnki.jasp.2009.07.012 [15] 刘河霞, 刘玉英, 李瑞明, 等. 驻涡燃烧室凹腔供油位置对流场影响的PIV实验[J]. 航空动力学报, 2009, 24(10): 2272-2276. Liu Hexia, Liu Yuying, Li Ruiming, et al. Experimental study on the influence of fuel supply position of concave cavity on the flow field in trapped vortex combustor by PIV[J]. Journal of Aerospace Power, 2009, 24(10): 2272-2276. (in Chinese doi: 10.13224/j.cnki.jasp.2009.10.021Liu Hexia, Liu Yuying, Li Ruiming, et al. Experimental study on the influence of fuel supply position of concave cavity on the flow field in trapped vortex combustor by PIV[J]. Journal of Aerospace Power, 2009, 24(10): 2272-2276. (in Chinese) doi: 10.13224/j.cnki.jasp.2009.10.021 [16] 刘玉英, 李瑞明, 杨茂林, 等. 驻涡燃烧室凹腔流场结构实验[J]. 推进技术, 2010, 31(1): 29-33. Liu Yuying, Li Ruiming, Yang Maolin, et al. Experiment on flow field of cavity in trapped vortex combustor[J]. Journal of Propulsion Technology, 2010, 31(1): 29-33. (in Chinese doi: 10.13675/j.cnki.tjjs.2010.01.013Liu Yuying, Li Ruiming, Yang Maolin, et al. Experiment on flow field of cavity in trapped vortex combustor[J]. Journal of Propulsion Technology, 2010, 31(1): 29-33. (in Chinese) doi: 10.13675/j.cnki.tjjs.2010.01.013 [17] Jin Yi, He Xiaomin, Jiang Bo, et al. Effect of cavity-injector/radial-strut relative position on performance of a trapped vortex combustor[J]. Aerospace Science and Technology, 2014, 32(1): 10-18. doi: 10.1016/j.ast.2013.12.014 [18] Jin Yi, He Xiaomin, Zhang Jingyu, et al. Numerical investigation on flow structures of a laboratory-scale trapped vortex combustor[J]. Applied Thermal Engineering, 2014, 66(1/2): 318-327. doi: 10.1016/j.applthermaleng.2014.02.030 [19] Jin Yi, Li Yefang, He Xiaomin, et al. Experimental investigations on flow field and combustion characteristics of a model trapped vortex combustor[J]. Applied Energy, 2014, 134: 257-269. doi: 10.1016/j.apenergy.2014.08.029 [20] 赵玉玲, 李季, 何小民, 等. 联焰板长度对驻涡燃烧室凹腔流动特性影响的数值模拟[J]. 南京航空航天大学学报, 2016, 48(3): 334-339. Zhao Yuling, Li Ji, He Xiaomin, et al. Numerical studies on effect of strut axial length on cavity flow field in trapped vortex combustor[J]. Journal of Nanjing University of Aeronautics & Astronautics, 2016, 48(3): 334-339. (in Chinese doi: 10.16356/j.1005-2615.2016.03.006Zhao Yuling, Li Ji, He Xiaomin, et al. Numerical studies on effect of strut axial length on cavity flow field in trapped vortex combustor[J]. Journal of Nanjing University of Aeronautics & Astronautics, 2016, 48(3): 334-339. (in Chinese) doi: 10.16356/j.1005-2615.2016.03.006 [21] Chen Song, Chue R, Schluter J U, et al. Effects of spinning motion on the trapped vortex combustors[C]//33rd AIAA Applied Aerodynamics Conference. AIAA, 2015: AIAA2015-3299. [22] Chen Song, Chue R S M, Yu S C M, et al. Spinning effects on a trapped vortex combustor[J]. Journal of Propulsion and Power, 2016, 32(5): 1133-1145. doi: 10.2514/1.B36005 [23] Chen Song, Zhao Dan. Numerical study of non-reacting flowfields of a swirling trapped vortex ramjet combustor[J]. Aerospace Science and Technology, 2018, 74: 81-92. doi: 10.1016/j.ast.2018.01.006 [24] Li Mingyu, Wang Qian, Zhao Yuling, et al. Combustion and emission characteristics of a novel staged combustor for aero gas turbine engine[J]. Aerospace Science and Technology, 2023, 134: 108169. doi: 10.1016/j.ast.2023.108169 [25] 何小民, 桂韬, 毛向臣, 等. 双涡控径向分级燃烧室流场特性[J]. 燃气涡轮试验与研究, 2024, 37(3): 18-26. He Xiaomin, Gui Tao, Mao Xiangchen, et al. Characteristics of flow field in dual-vortex-controlled radial staged combustor[J]. Gas Turbine Experiment and Research, 2024, 37(3): 18-26. (in Chinese doi: 10.3724/j.GTER.20240024He Xiaomin, Gui Tao, Mao Xiangchen, et al. Characteristics of flow field in dual-vortex-controlled radial staged combustor[J]. Gas Turbine Experiment and Research, 2024, 37(3): 18-26. (in Chinese) doi: 10.3724/j.GTER.20240024 -
点击查看大图
计量
- 文章访问数: 41
- HTML浏览量: 38
- PDF量: 2
- 被引次数: 0