Experimental study on the detonation process of a pulse detonation engine with ionized seeds

作     者：Ling Lin Shun-an Hu Yan-bin Hu Guang-ju Xu Hong-yu Jiao Chun-sheng Weng Ling Lin;Shun-an Hu;Yan-bin Hu;Guang-ju Xu;Hong-yu Jiao;Chun-sheng Weng

作者机构：School of Automotive EngineeringChangshu Institute of TechnologySuzhou215500China National Key Laboratory of Transient PhysicsNanjing University of Science and TechnologyNanjing210094China 

出 版 物：《Defence Technology（防务技术）》 (Defence Technology)

年 卷 期：2020年第16卷第1期

页      面：178-187页

核心收录：

学科分类：082502[工学-航空宇航推进理论与工程] 08[工学] 0825[工学-航空宇航科学与技术] 

基　　金：supported by the National Natural Science Foundation of China(No.11802039,No.51605046) the Jiangsu Natural Science Foundation of China(No.BK20160406) 

主　　题：Pulse detonation engine Ionized seeds Detonation process Ignition frequency 

摘      要：An experimental platform of a pulse detonation engine(PDE) was established to study the effect of different K_2 CO_3 ionized seed mass contents on the detonation *** pressure and ion concentration were detected in the detonation process of the PDE with different contents of ionized *** initiation process of the PDE at different ignition frequencies was *** results show that the gas conductivity in the detonation process increased by adding ionized seeds to the PDE tube,and the conductivity increased with the increase in ionized seed mass *** the increase in ionized seed mass content,the range of the conductivity *** PDE was successfully ignited and formed a stable detonation wave at ignition frequencies of 5 Hz and 10 Hz,and the peak pressure of the stable detonation with the ignition frequency of 5 Hz was 17% higher than that with an ignition frequency of 10 *** detonation wave intensity was weake ned and dege nerated to a shock wave that propagated in the tube without the fuel filled at the ignition frequency of 20 Hz.