摘要
在高马赫数飞行条件下,斜爆轰发动机热力学循环效率高,燃烧室长度短,是近些年国内外研究热点。目前斜爆轰发动机试验研究使用的都是氢气或者乙烯燃料,还没有使用航空煤油的试验结果。为了研究RP3航空煤油应用于斜爆轰发动机的可行性,在JF–12激波风洞上开展了冷态RP3航空煤油斜爆轰发动机自由射流试验研究,JF–12激波风洞有效试验时间50 ms。针对航空煤油点火延迟时间长的难点,提出了鼓包强制起爆新技术。模拟的飞行马赫数为9,试验气流总温为3800 K,全局当量比为0.9。试验中获得了稳定的斜爆轰波,证明了RP3航空煤油在斜爆轰发动机上应用的可行性。
The oblique detonation engine has great potential application in high flight Mach number airbreathing vehicles because of its higher thermodynamic efficiency and smaller size.The research about the oblique detonation engine is renewed all over the world in recent years.However,all of the oblique detonation experiments are conducted with hydrogen fuel or ethylene.There is no experimental result about the kerosene oblique detonation.In order to examine the application feasibility of kerosene oblique detonation engine,the experimental study on the liquid RP3 aviation kerosene oblique detonation engine is conducted in JF–12 shock tunnel and the test time is about 50 ms.The difficult issue for the initiation of kerosene oblique detonation is that the ignition delay time of kerosene-air is too long and the autoignition cannot occur in the combustor.A new forced detonation initiation method is put forth to deal with this key issue.The total temperature of JF–12 shock tunnel is 3800 K and the global equivalence ratio is 0.9,which replicates Mach 9 flight-equivalent condition.The steady-state oblique detonation is obtained successfully during the experiments,which demonstrates the application feasibility of the kerosene oblique detonation engine.
作者
韩信
张文硕
张子健
苑朝凯
韩桂来
刘云峰
HAN Xin;ZHANG Wenshuo;ZHANG Zijian;YUAN Chaokai;HAN Guilai;LIU Yunfeng(Institute of Mechanics,Chinese Academy of Sciences,Beijing 100190,China;School of Engineering Science,University of Chinese Academy of Sciences,Beijing 100049,China;School of Aerospace Engineering,Xiamen University,Xiamen 361102,China;Department of Aeronautical and Aviation Engineering,The Hong Kong Polytechnic University,Kowloon 999077,Hong Kong,China)
出处
《实验流体力学》
CSCD
北大核心
2024年第6期21-29,共9页
Journal of Experiments in Fluid Mechanics
基金
国家自然科学基金项目(11672312)。
作者简介
通信作者:刘云峰,E-mail:liuyunfeng@imech.ac.cn;韩信(1996-),男,河南平舆人,博士研究生。研究方向:斜爆轰与斜爆轰推进。E-mail:hanxin15@foxmail.com
