| 脉冲爆震发动机新型点火系统的优化设计 |
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| 引用本文： | 姜日红,武晓松,余陵,陈志刚. 脉冲爆震发动机新型点火系统的优化设计[J]. 南京理工大学学报(自然科学版), 2009, 33(2) |
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| 作者姓名： | 姜日红 武晓松 余陵 陈志刚 |
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| 作者单位： | 1. 南京理工大学,机械工程学院,江苏,南京,210094
2. 总装驻长治地区军代室,山西,长治,046000 |
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| 基金项目： | 江苏省普通高校研究生创新科研项目 |
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| 摘 要： | 为了缩短爆燃向爆震转捩的时间和距离,该文将一种新型点火系统--火焰喷射点火系统应用于脉冲爆震发动机.利用二维数值模拟研究不同喷射点火系统结构参数(前端圆柱段长度,直径以及末端喷嘴的直径)下爆燃向爆震转捩的时间和距离,并将研究结果与传统点火系统的爆燃向爆震转捩转变时间进行对比.结果发现:对于该文所采用的PDE模型,最有效的副室结构为喷嘴直径4 mm,副室长度10 mm,体积3.8 cm3.此外还发现喷射点火系统比传统点火系统能更有效地缩短爆燃向爆震转捩的时间和距离,其效率约为后者的1.26倍.
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| 关 键 词： | 脉冲爆震发动机 火焰喷射点火系统 爆燃向爆震转捩 传统点火系统 二维数值模拟 |
Optimization Design of New Ignition System for Pulse Detonation Engine |
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| JIANG Ri-hong,WU Xiao-song,YU Ling,CHEN Zhi-gang. Optimization Design of New Ignition System for Pulse Detonation Engine[J]. Journal of Nanjing University of Science and Technology(Nature Science), 2009, 33(2) |
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| Authors: | JIANG Ri-hong WU Xiao-song YU Ling CHEN Zhi-gang |
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| Affiliation: | 1.School of Mechanical Engineering;NUST;Nanjing 210094;China;2.Commissarial Room for Army of Changzhi;General Armament Department of PLA;Changzhi 046000;China |
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| Abstract: | A new ignition system is applied to pulse detonation engine(PDE),which is a flame jet ignition(FJI) system,to enhance a deflagration to detonation transition(DDT) time and length.Main subjects are studied: to change the FJI parameters of the length,diameter and nozzle diameter,to optimize the best configuration of FJI sub-chamber to obtain its basic design,to compare the results with the process time of DDT of the conventional spark ignition(CSI) system.The most effective structure of the subchamber for the... |
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| Keywords: | pulse detonation engines flame jet ignition deflagration to detonation transition conventional spark ignition two-dimensional numerical simulation |
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