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论文:2017,Vol:35,Issue(2):240-245 |
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引用本文： |
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王治武, 王亚奇, 张洋, 刘星, 郑龙席. 三点火源与障碍物起爆特性对比研究[J]. 西北工业大学学报 |
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Wang Zhiwu, Wang Yaqi, Zhang Yang, Liu Xing, Zheng Longxi. The Comparative Study of Detonation Initiation Performance of Three Successive Ignitions and Obsticles[J]. Northwestern polytechnical university |
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| 三点火源与障碍物起爆特性对比研究 |
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| 王治武1, 王亚奇1, 张洋2, 刘星1, 郑龙席1 |
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1. 西北工业大学 动力与能源学院, 陕西 西安 710072;
2. 西安交通大学 化学工程与技术学院, 陕西 西安 710049 |
| 摘要: |
| 针对脉冲爆震发动机，为了拓宽两点火源顺序点火起爆的间隔时间范围，对同一点火能量下不同点火源间隔以及同一点火源间隔下不同时间间隔的三点火源顺序点火过程以及两点火源并布置障碍物的起爆过程进行了数值模拟。计算结果表明，三点火源和布置障碍物均有利于起爆；各点火源产生的波叠加作用和因障碍物存在而产生的横波和热点均对于起爆有明显的增进作用。综合应用2种增爆方式可以有效拓宽起爆的时间间隔范围，促进起爆。 |
| 关键词:
起爆
三点火源
点火间隔时间
障碍物
脉冲爆震发动机
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| The Comparative Study of Detonation Initiation Performance of Three Successive Ignitions and Obsticles |
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| Wang Zhiwu1, Wang Yaqi1, Zhang Yang2, Liu Xing1, Zheng Longxi1 |
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1. School of Power and Energy, Northwestern Polytechnical University, Xi'an 710072 China;
2. School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an 710049 China |
| Abstract: |
| In order to broaden the interval of two successive ignitions with which the detonation wave was initiated, 2-D numerical simulation was conducted to observe the process of detonation initiated by three successive ignitions and two successive ignitions with obstacles. Stoichiometric propane-air mixture was used as the fuel-oxidizer. The result of the simulation indicated that better detonation initiation performance was obtained by three successive ignitions and obstacles. The comprehensive function of pressure waves generated by different ignition, the transverse waves and local thermal points generated by the obstacles, can all promote the performance of detonation initiation. The ignition time interval of the ignitions was widen by utilizing three successive ignitions with both of the ignition triggering methods. |
| Key words:
Detonation initiation
Three ignitions
Ignition time interval
obstacles
Pulse detonation engine
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| 收稿日期: 2016-10-13
修回日期:
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| DOI: |
| 基金项目: 国家自然科学基金（51306153、91441201）、陕西省自然科学基金（2014JM7258）与高等学校博士学科点专项科研基金新教师类课题（20116102120027）资助 |
| 通讯作者:
Email： |
| 作者简介: 王治武(1981-),西北工业大学副教授、博士,主要从事燃烧学、流体力学的研究。
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| 作者相关文章 |
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| 王治武 在本刊中的所有文章 |
| 王亚奇 在本刊中的所有文章 |
| 张洋 在本刊中的所有文章 |
| 刘星 在本刊中的所有文章 |
| 郑龙席 在本刊中的所有文章 |
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