频率对两相爆震波起爆特性影响的实验研究 -- 西北工业大学学报,2015,33(5):831-836
论文:2015,Vol:33,Issue(5):831-836
引用本文:
王治武, 张洋, 陈星谷, 郑龙席, 卢杰. 频率对两相爆震波起爆特性影响的实验研究[J]. 西北工业大学学报
Wang Zhiwu, Zhang Yang, Chen Xinggu, Zheng Longxi, Lu Jie. Experimental Research on Operating Frequency Effect on the Characteristics of Two-Phase Detonation Initiation[J]. Northwestern polytechnical university

频率对两相爆震波起爆特性影响的实验研究
王治武1, 张洋1, 陈星谷2, 郑龙席1, 卢杰1
1. 西北工业大学 动力与能源学院, 陕西 西安 710072;
2. 中航工业 航空动力机械研究所, 湖南 株洲 412002
摘要:
为了掌握爆震频率对两相多循环爆震波起爆特性的影响规律,对采用高能火花塞点火的吸气式脉冲爆震发动机不同爆震频率下的起爆过程进行了试验研究,对比分析了不同频率下的PDE沿程压力分布,讨论了起爆特征参数,如DDT转变距离、着火延迟时间、DDT转变时间和起爆时间等,与爆震频率的变化关系。试验结果显示,随着工作频率增加,爆燃燃烧向爆震燃烧的转变有所加快。工作频率对着火延迟时间和爆震形成时间影响较大,对DDT时间影响很小,随着频率增加,着火延迟时间和爆震形成时间逐渐减小,而DDT时间略有下降。
关键词:    脉冲爆震发动机    试验研究    爆震频率    两相多循环爆震波    起爆时间    着火延迟时间   
Experimental Research on Operating Frequency Effect on the Characteristics of Two-Phase Detonation Initiation
Wang Zhiwu1, Zhang Yang1, Chen Xinggu2, Zheng Longxi1, Lu Jie1
1. Department of Aero-Engines, Northwestern Polytechnical University, Xi'an 710072, China;
2. China Aviation Power Plant Research Institute, Zhuzhou 412002, China
Abstract:
In order to grasp the influence of detonation frequency on the initiation characteristics of two-phase multi-cycle detonation, an air-breathing pulse detonation engine mockup with high energy spark plug was designed and the experiments of detonation initiation process at different operating frequencies were carried out. The pressure distributions along the length of PDE mockup at different operating frequencies were contrasted and analyzed. Meanwhile, the relationship between the detonation frequency on the one hand and the initiation characteristic parameters on the other hand was discussed, such as the DDT transition distance, ignition delay time, DDT transition time and detonation initiation time and so on. The experimental results indicated that deflagration to detonation transition increased with increasing operating frequency. The operating frequency had obvious effect on ignition delay time and the detonation initiation time but had a weak effect on DDT time. As the operating frequency increased, the ignition delay time and detonation initiation time decreased linearly, while the DDT time declined slightly.
Key words:    Pulse detonation engines    design of experiments    detonation frequency    two-phase multi-cycle detonation    detonation initiation time    ignition delay time   
收稿日期: 2015-04-05     修回日期:
DOI:
基金项目: 国家自然科学基金(51306153、91441201)、国家留学基金、陕西省自然科学基金(2014JM7258)、高等学校博士学科点专项科研基金新教师类资助课题(20116102120027)与中央高校基本科研业务费专项资金(3102015ZY037)资助
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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、流体力学等研究。
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