| Citation: | Liu Yuqiang, Feng Wenkang, Zheng Quan, et al. Effects of injector configuration on mixing characteristics in the combustion chamber of a hollow-core rotating detonation engine[J]. Journal of Aerospace Power, 2026, 41（X）：20250173 doi: 10.13224/j.cnki.jasp.20250173
|
To investigate the mixing characteristics of fuel and supersonic inflow, a numerical simulation study was conducted based on the annular-slot-orifice injection structure in the combustion chamber of an open-barrel-type rotating detonation ramjet engine. The study explored the effects of fuel injection angle, injection method, and axial position of the injection ring on the mixing characteristics of fuel and supersonic inflow. The results showed that increasing the fuel injection angle improves the uniformity of fuel mixing, reduces total pressure loss, and leads to more intense collisions between transverse jets. When the fuel is injected in a non-colliding manner, the mixing uniformity increases, and the collision area between the supersonic inflow and the fuel enlarges. Moving the injection ring upstream enhances the uniformity of fuel mixing, and the mixing distance between the transverse jet and the supersonic inflow becomes longer. Analysis of the flow field structure revealed that the supersonic inflow and ethylene transverse jets undergo cylindrical wake flow within the expansion section, forming a fan-shaped continuous expansion region extending downstream. Upon entering the combustion chamber, the primary mixing flow forms a series of fragmented small vortex structures, thereby promoting the mixing effect of ethylene and air.
| [1] |
王健平, 姚松柏. 连续爆轰发动机原理与技术[M]. 北京: 科学出版社, 2018. Wang Jianping, Yao (Song)(Bai| Bo). Principle and technology of continuous detonation engine[M]. Beijing: Science Press, 2018. (in Chinese
Wang Jianping, Yao (Song)(Bai| Bo). Principle and technology of continuous detonation engine[M]. Beijing: Science Press, 2018. (in Chinese)
|
| [2] |
Kailasanath K. Review of propulsion applications of detonation waves[J]. AIAA Journal, 2000, 38(9): 1698-1708. doi: 10.2514/2.1156
|
| [3] |
王兵, 谢峤峰, 闻浩诚, 等. 爆震发动机研究进展[J]. 推进技术, 2021, 42(4): 721-737, 716. Wang Bing, Xie Qiaofeng, Wen Haocheng, et al. Research progress of detonation engines[J]. Journal of Propulsion Technology, 2021, 42(4): 721-737, 716. (in Chinese doi: 10.13675/j.cnki.tjjs.210109
Wang Bing, Xie Qiaofeng, Wen Haocheng, et al. Research progress of detonation engines[J]. Journal of Propulsion Technology, 2021, 42(4): 721-737, 716. (in Chinese) doi: 10.13675/j.cnki.tjjs.210109
|
| [4] |
李冬, 张义宁, 凌文辉, 等. 吸气式旋转爆震发动机进气段流动特性[J]. 航空学报, 2025, 46(2): 230737. Li Dong, Zhang Yining, Ling Wenhui, et al. Inlet flow characteristics analysis of air-breathing rotating detonation engine[J]. Acta Aeronautica et Astronautica Sinica, 2025, 46(2): 230737. (in Chinese
Li Dong, Zhang Yining, Ling Wenhui, et al. Inlet flow characteristics analysis of air-breathing rotating detonation engine[J]. Acta Aeronautica et Astronautica Sinica, 2025, 46(2): 230737. (in Chinese)
|
| [5] |
罗龙康. 旋转爆震工作条件下进气道扩张段流动特性研究[D]. 南京: 南京航空航天大学, 2021. Luo Longkang. Study of flow characteristics of rotating detonation engine inlet diffuser[D]. Nanjing: Nanjing University of Aeronautics and Astronautics, 2021. (in Chinese
Luo Longkang. Study of flow characteristics of rotating detonation engine inlet diffuser[D]. Nanjing: Nanjing University of Aeronautics and Astronautics, 2021. (in Chinese)
|
| [6] |
罗永晨, 续晗, 张锋, 等. 乙烯对煤粉-氧气爆轰波起爆特性影响机制的实验研究[J]. 兵工学报, 2024, 45(3): 754-762. Luo Yongchen, Xu Han, Zhang Feng, et al. Experimental study on the effect of ethylene on the detonation wave initiation of coal powder/oxygen mixture[J]. Acta Armamentarii, 2024, 45(3): 754-762. (in Chinese doi: 10.12382/bgxb.2022.0600
Luo Yongchen, Xu Han, Zhang Feng, et al. Experimental study on the effect of ethylene on the detonation wave initiation of coal powder/oxygen mixture[J]. Acta Armamentarii, 2024, 45(3): 754-762. (in Chinese) doi: 10.12382/bgxb.2022.0600
|
| [7] |
黄瀚黎, 吕亚锦, 郑权, 等. 当量比对常温煤油-氢气-空气旋转爆轰传播影响[J]. 航空动力学报, 2024, 39(9): 446-456. Huang Hanli , Lyu Yain , Zheng Quan , et al. Effect of equivalence ratio on kerosene-hydrogen-air rotating detonation propagation at room temperature[J]. Journal of Aerospace Power, 2024, 39(9): 446-456. (in Chinese).
Huang Hanli , Lyu Yain , Zheng Quan , et al. Effect of equivalence ratio on kerosene-hydrogen-air rotating detonation propagation at room temperature[J]. Journal of Aerospace Power, 2024, 39(9): 446-456. (in Chinese).
|
| [8] |
徐广川, 陈铮, 王晓昆, 等. 亚临界状态航空煤油的旋转爆震波传播特性实验研究[J]. 航空动力学报, 2025, 40(12): 20240265. Xu Guangchuan, Chen Zheng, Wang Xiaokun, et al. Experimental study on rotating detonation wave propagation characteristics of subcritical aviation kerosene[J]. Journal of Aerospace Power, 2025, 40(12): 20240265. (in Chinese doi: 10.13224/j.cnki.jasp.20240265
Xu Guangchuan, Chen Zheng, Wang Xiaokun, et al. Experimental study on rotating detonation wave propagation characteristics of subcritical aviation kerosene[J]. Journal of Aerospace Power, 2025, 40(12): 20240265. (in Chinese) doi: 10.13224/j.cnki.jasp.20240265
|
| [9] |
韩家祥, 白桥栋, 邱晗, 等. 燃烧室结构对煤油预燃裂解气旋转爆轰特性的影响[J]. 兵工学报, 2024, 45(8): 2837-2850. Han Jiaxiang, Bai Qiaodong, Qiu Han, et al. Influence of combustor configuration on rotating detonation characteristics of kerosene pre-combustion cracking gas[J]. Acta Armamentarii, 2024, 45(8): 2837-2850. (in Chinese doi: 10.12382/bgxb.2023.0491
Han Jiaxiang, Bai Qiaodong, Qiu Han, et al. Influence of combustor configuration on rotating detonation characteristics of kerosene pre-combustion cracking gas[J]. Acta Armamentarii, 2024, 45(8): 2837-2850. (in Chinese) doi: 10.12382/bgxb.2023.0491
|
| [10] |
孟豪龙, 翁春生, 武郁文, 等. 环形燃烧室中凹腔对C2H4/Air旋转爆轰流场影响的数值模拟[J]. 兵工学报, 2022, 43(5): 1063-1074. Meng Haolong, Weng Chunsheng, Wu Yuwen, et al. Numerical simulation of cavity influence on C2 H4/air rotating detonation flow field in annular combustor[J]. Acta Armamentarii, 2022, 43(5): 1063-1074. (in Chinese
Meng Haolong, Weng Chunsheng, Wu Yuwen, et al. Numerical simulation of cavity influence on C2 H4/air rotating detonation flow field in annular combustor[J]. Acta Armamentarii, 2022, 43(5): 1063-1074. (in Chinese)
|
| [11] |
Sato T, Chacon F, White L, et al. Mixing and detonation structure in a rotating detonation engine with an axial air inlet[J]. Proceedings of the Combustion Institute, 2021, 38(3): 3769-3776. doi: 10.1016/j.proci.2020.06.283
|
| [12] |
孔维鹏, 刘倩. 喷嘴结构细节对连续爆轰发动机掺混特性的影响[J]. 航空动力学报, 2024, 39(8): 20220558. Kong Weipeng, Liu Qian. Influence of injector structure details on mixing characteristics of continuous detonation engine[J]. Journal of Aerospace Power, 2024, 39(8): 20220558. (in Chinese doi: 10.13224/j.cnki.jasp.20220558
Kong Weipeng, Liu Qian. Influence of injector structure details on mixing characteristics of continuous detonation engine[J]. Journal of Aerospace Power, 2024, 39(8): 20220558. (in Chinese) doi: 10.13224/j.cnki.jasp.20220558
|
| [13] |
朱龙, 赵楠楠, 吕亚锦, 等. 喷注结构对CH4-O2旋转爆轰发动机掺混特性的影响[J]. 航空动力学报, 2025, 40(11): 20240578. Zhu Long, Zhao Nannan, (lü/lv/lu/lyu) Yajin, et al. Influence of injection structure on the mixing characteristics of CH4-O2 rotating detonation engine[J]. Journal of Aerospace Power, 2025, 40(11): 20240578. (in Chinese doi: 10.13224/j.cnki.jasp.20240578
Zhu Long, Zhao Nannan, (lü/lv/lu/lyu) Yajin, et al. Influence of injection structure on the mixing characteristics of CH4-O2 rotating detonation engine[J]. Journal of Aerospace Power, 2025, 40(11): 20240578. (in Chinese) doi: 10.13224/j.cnki.jasp.20240578
|
| [14] |
刘思远, 汪洋, 李真珍, 等. 中心锥喷管喉道比参数对旋转爆轰燃烧影响的数值研究[J]. 推进技术, 2023, 44(9): 2204071. Liu Siyuan, Wang Yang, Li Zhenzhen, et al. Numerical study on effects of throat ratio parameter of aerospike nozzle on rotating detonation combustion[J]. Journal of Propulsion Technology, 2023, 44(9): 2204071. (in Chinese doi: 10.13675/j.cnki.tjjs.2204071
Liu Siyuan, Wang Yang, Li Zhenzhen, et al. Numerical study on effects of throat ratio parameter of aerospike nozzle on rotating detonation combustion[J]. Journal of Propulsion Technology, 2023, 44(9): 2204071. (in Chinese) doi: 10.13675/j.cnki.tjjs.2204071
|
| [15] |
Zheng Yushan, Wang Chao, Xiao Baoguo, et al. Numerical simulation of radial-stratified rotating detonation flow field structures with different injection patterns[J]. International Journal of Hydrogen Energy, 2020, 45(56): 32619-32631. doi: 10.1016/j.ijhydene.2020.09.005
|
| [16] |
葛高杨, 马虎, 夏镇娟, 等. 环缝宽度对两相旋转爆轰波压力与频率特性影响实验研究[J]. 推进技术, 2022, 43(8): 210251. Ge Gaoyang, Ma Hu, Xia Zhenjuan, et al. Experimental study on effects of annular gap width on pressure and frequency characteristics of two-phase rotating detonation wave[J]. Journal of Propulsion Technology, 2022, 43(8): 210251. (in Chinese doi: 10.13675/j.cnki.tjjs.210251
Ge Gaoyang, Ma Hu, Xia Zhenjuan, et al. Experimental study on effects of annular gap width on pressure and frequency characteristics of two-phase rotating detonation wave[J]. Journal of Propulsion Technology, 2022, 43(8): 210251. (in Chinese) doi: 10.13675/j.cnki.tjjs.210251
|
| [17] |
Yao Kepeng, Yang Pengfei, Teng Honghui, et al. Effects of injection parameters on propagation patterns of hydrogen-fueled rotating detonation waves[J]. International Journal of Hydrogen Energy, 2022, 47(91): 38811-38822. doi: 10.1016/j.ijhydene.2022.09.051
|
| [18] |
Zhao Majie, Zhang Huangwei. Large eddy simulation of non-reacting flow and mixing fields in a rotating detonation engine[J]. Fuel, 2020, 280: 118534. doi: 10.1016/j.fuel.2020.118534
|
| [19] |
Kou Yitao, Guo Shanguang, Wu Yun, et al. Effect of injection parameters on instability of detonation waves in rotating detonation engines with an S-shaped isolator[J]. Physics of Fluids, 2024, 36(8): 086127. doi: 10.1063/5.0219880
|
| [20] |
Athmanathan V, Braun J, Ayers Z M, et al. On the effects of reactant stratification and wall curvature in non-premixed rotating detonation combustors[J]. Combustion and Flame, 2022, 240: 112013. doi: 10.1016/j.combustflame.2022.112013
|
| [21] |
Weiss S, Bohon M D, Paschereit C O, et al. Computational study of reactants mixing in a rotating detonation combustor using compressible RANS[J]. Flow, Turbulence and Combustion, 2020, 105(1): 267-295. doi: 10.1007/s10494-019-00097-x
|
| [22] |
Yang Xingkui, Wu Yun, Song Feilong, et al. Experimental study on a premixed rotating detonation combustor using Tesla inlet configuration fueled by kerosene[J]. Experimental Thermal and Fluid Science, 2023, 146: 110928. doi: 10.1016/j.expthermflusci.2023.110928
|
| [23] |
马虎, 张义宁, 杨成龙, 等. 燃料分布对旋转爆震波传播特性影响[J]. 航空动力学报, 2019, 34(3): 513-520. Ma Hu, Zhang Yining, Yang Chenglong, et al. Effects of fuel distribution on propagation of rotating detonation wave[J]. Journal of Aerospace Power, 2019, 34(3): 513-520. (in Chinese doi: 10.13224/j.cnki.jasp.2019.03.001
Ma Hu, Zhang Yining, Yang Chenglong, et al. Effects of fuel distribution on propagation of rotating detonation wave[J]. Journal of Aerospace Power, 2019, 34(3): 513-520. (in Chinese) doi: 10.13224/j.cnki.jasp.2019.03.001
|
| [24] |
Zhang Hanxin, Fu Lin. NND schemes and numerical simulation of axial symmetric free jet flows[J]. Acta Mechanica Sinica, 1990, 6(3): 193-203. doi: 10.1007/BF02487640
|
| [25] |
李聪. 超声速气流中凹腔下游燃料喷注混合与燃烧特性研究[D]. 长沙: 国防科技大学, 2021. Li Cong. Research on fuel injection, mixing and combustion characteristics downstream of the cavity in the supersonic flow[D]. Changsha: National University of Defense Technology, 2021. (in Chinese
Li Cong. Research on fuel injection, mixing and combustion characteristics downstream of the cavity in the supersonic flow[D]. Changsha: National University of Defense Technology, 2021. (in Chinese)
|
| [26] |
曹琦, 郑权, 肖强, 等. 吸气式旋转爆轰发动机冷流掺混数值模拟研究[J]. 弹道学报, 2023, 35(2): 36-45. Cao Qi, Zheng Quan, Xiao Qiang, et al. Numerical simulation of cold flow field mixing in air-breathing rotating detonation engine[J]. Journal of Ballistics, 2023, 35(2): 36-45. (in Chinese
Cao Qi, Zheng Quan, Xiao Qiang, et al. Numerical simulation of cold flow field mixing in air-breathing rotating detonation engine[J]. Journal of Ballistics, 2023, 35(2): 36-45. (in Chinese)
|
| [27] |
周蕊, 李晓鹏. 连续旋转爆轰发动机冷流场的混合特性研究[J]. 航空学报, 2016, 37(12): 3668-3674. Zhou Rui, Li Xiaopeng. Numerical investigation of mixing characteristic of cold continuously rotating detonation engine[J]. Acta Aeronautica et Astronautica Sinica, 2016, 37(12): 3668-3674. (in Chinese doi: 10.7527/S1000-6893.2016.0108
Zhou Rui, Li Xiaopeng. Numerical investigation of mixing characteristic of cold continuously rotating detonation engine[J]. Acta Aeronautica et Astronautica Sinica, 2016, 37(12): 3668-3674. (in Chinese) doi: 10.7527/S1000-6893.2016.0108
|
DownLoad:
