Impact of fluidic nozzle on propulsion performance of pulse detonation engine
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摘要:
为了进一步提高脉冲爆震发动机(PDE)的推进性能,对PDE使用流体喷管模型进行了多循环数值模拟研究,并提出了主次流错相位喷注方案。结果表明:主次流错相位喷注方案不仅可以调节主流和二次流的有效流通面积,改善喷管的非设计点状态,而且可以提高爆震室内可燃气最终充填压力,增强爆震燃烧强度;在主次流错相位喷注方案下,喷管主流进口瞬时气流总压相对喷管设计点的离散程度明显下降,有效改善了喷管的非设计点状态;最佳的主次流相位差为反传压缩波恰好传播至爆震室头部这一工况,最佳的二次流喷注位置为喷管喉部;相比基准喷管的最大比冲性能,PDE使用流体喷管可以产生5.64%的比冲增益。
Abstract:In order to further improve the propulsion performance of the pulse detonation engine(PDE), a multi-cycle numerical simulation was carried out for the PDE with fluidic nozzle, and a scheme of alternating phase injection of the main and secondary flows was proposed. According to the computational results, the new nozzle design can adjust the effective flow area of the main and secondary flows, thereby improving the off-design point state of the nozzle. Furthermore, it can increase the actual filling pressure of combustible gas, thereby enhancing the detonation combustion intensity. Also, the best phase difference between the main and secondary flows manifested the condition that the back compression wave just propagated to the head of detonation chamber. The best injection position of secondary flow was the nozzle throat. As compared with the maximum specific impulse generated by baseline nozzle, the pulse detonation engine with fluidic nozzle could produce a specific impulse gain of 5.64%.
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Key words:
- pulse detonation engine /
- nozzle /
- secondary flow /
- internal flow analysis /
- propulsion performance
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表 1 数值模拟计算得到的爆震参数和相同工况下CEA计算结果
Table 1. Detonation parameters obtained from numerical simulation and CEA calculation results under the same operating conditions
类型 V/(m/s) T/K CEA 1833.0 2863 基准喷管 2116 2919 -
[1] SMIRNOV N. Pulse detonation engines: advantages and limitations[C]//Advanced Combustion and Aerothermal Technologies. Dordrecht, the Netherlands: Springer, 2007: 353-363. [2] STUESSY W, WILSON D, STUESSY W, et al. Experimental investigation of an annular multi-cycle pulsed detonation wave engine[R]. AIAA-1997-808, 1997. [3] MANGIN B, CHPOUN A, JACQUIN L. Experimental and numerical study of the fluidic thrust vectoring of a two-dimensional supersonic nozzle[R]. AIAA-2006-3666, 2006. [4] 王研艳,翁春生. 基于带源项非结构网格CE/SE方法的PDRE爆轰排气流场中尾喷管特性研究[J]. 弹道学报,2016,28(4): 90-96. doi: 10.3969/j.issn.1004-499X.2016.04.017WANG Yanyan,WENG Chunsheng. Study on nozzle performances during detonation and exhaust process of PDRE based on unstructured meshes CE/SE method with stiff source term[J]. Journal of Ballistics,2016,28(4): 90-96. (in Chinese) doi: 10.3969/j.issn.1004-499X.2016.04.017 [5] 范玮,严传俊,李强,等. 脉冲爆震发动机尾喷管的实验[J]. 航空动力学报,2007,22(6): 869-872. doi: 10.13224/j.cnki.jasp.2007.06.004FAN Wei,YAN Chuanjun,LI Qiang,et al. Experimental investigation on pulse detonation engine nozzles[J]. Journal of Aerospace Power,2007,22(6): 869-872. (in Chinese) doi: 10.13224/j.cnki.jasp.2007.06.004 [6] ALLGOOD D, GUTMARK E, HOKE J, et al. Performance measurements of multi-cycle pulse detonation engine exhaust nozzles[R]. AIAA-2005-222, 2005. [7] MA Fuhua,CHOI J Y,YANG V. Thrust chamber dynamics and propulsive performance of multitube pulse detonation engines[J]. Journal of Propulsion and Power,2005,21(4): 681-691. doi: 10.2514/1.8182 [8] MA Fuhua,CHOI J Y,YANG V. Propulsive performance of airbreathing pulse detonation engines[J]. Journal of Propulsion and Power,2006,22(6): 1188-1203. doi: 10.2514/1.21755 [9] MCCLURE J R. Dynamic fluidic nozzles for pulse detonation engine applications[D]. Monterey, California: Naval Postgraduate School, 2010. [10] SMITH L R. Fluidically augmented nozzles for pulse detonation engine applications[D]. Monterey, California: Naval Postgraduate School, 2011. [11] BROPHY C, DAUSEN D, SMITH L R, et al. Fluidic nozzles for pulse detonation combustors[R]. AIAA-2012-1035, 2012. [12] 郑华雷,邱华,熊姹,等. 带二次流增推喷管的脉冲爆震发动机推进性能分析[J]. 推进技术,2014,35(7): 1002-1008. doi: 10.13675/j.cnki.tjjs.2014.07.018ZHENG Hualei,QIU Hua,XIONG Cha,et al. Propulsive performance of pulse detonation engine with fluidically augmented nozzle[J]. Journal of Propulsion Technology,2014,35(7): 1002-1008. (in Chinese) doi: 10.13675/j.cnki.tjjs.2014.07.018 [13] 邱华,何有权,门凯. 流体喷管的脉冲爆震发动机出口过膨胀优化数值研究[J]. 火箭推进,2021,47(1): 29-35.QIU Hua,HE Youquan,MEN Kai. Numerical study on overexpansion optimization of pulse detonation engine with fluidic nozzle[J]. Journal of Rocket Propulsion,2021,47(1): 29-35. (in Chinese) [14] 邱华,龚婷婷,熊姹,等. 带二次流增推尾喷管的脉冲爆震发动机数值模拟研究[J]. 西北工业大学学报,2015,33(2): 271-277. doi: 10.3969/j.issn.1000-2758.2015.02.017QIU Hua,GONG Tingting,XIONG Cha,et al. Numerical simulation of pulse detonation engine(PDE)with fluidic nozzle[J]. Journal of Northwestern Polytechnical University,2015,33(2): 271-277. (in Chinese) doi: 10.3969/j.issn.1000-2758.2015.02.017 [15] ZHANG Qibin,WANG Ke,DONG Rongxiao,et al. Experimental research on propulsive performance of the pulse detonation rocket engine with a fluidic nozzle[J]. Energy,2019,166: 1267-1275. doi: 10.1016/j.energy.2018.10.165 [16] ZHANG Qibin,WANG Ke,WANG Jigang,et al. Experimental research on vector control features of a pulse detonation tube with fluidic nozzle[J]. Aerospace Science and Technology,2021,116: 106456. doi: 10.1016/j.ast.2020.106456 [17] ZHANG Qibin,QIAO Xinqi,FAN Wei,et al. Study on operation and propulsion features of a pulse detonation rocket engine with secondary oxidizer injection[J]. Applied Thermal Engineering,2020,180: 115661. doi: 10.1016/j.applthermaleng.2020.115661 [18] WITOSZYNSKI C. Streamline visualization[J]. Journal of the Aeronautical Sciences,1940,7(9): 402. [19] RICE T. 2D and 3D method of characteristic tools for complex nozzle development[R]. Washington: NASA Center for Aerospace Information (CASI), 2003. [20] 张群,严传俊,范玮,等. 部分填充对脉冲爆震发动机冲量的影响[J]. 推进技术,2006,27(3): 280-284. doi: 10.3321/j.issn:1001-4055.2006.03.021ZHANG Qun,YAN Chuanjun,FAN Wei,et al. Effects of partial filling on the impulse of pulse detonation engine[J]. Journal of Propulsion Technology,2006,27(3): 280-284. (in Chinese) doi: 10.3321/j.issn:1001-4055.2006.03.021 [21] 王杰,刘建国,白桥栋,等. 填充系数对脉冲爆震发动机性能影响分析[J]. 南京理工大学学报(自然科学版),2008,32(1): 1-4.WANG Jie,LIU Jianguo,BAI Qiaodong,et al. Analysis of effects of filling coefficients on pulse detonation engine performance[J]. Journal of Nanjing University of Science and Technology (Natural Science),2008,32(1): 1-4. (in Chinese) -