单元推进剂液滴组着火过程的实验研究

推进技术 ›› 1997, Vol. 18 ›› Issue (3): 103-107.

单元推进剂液滴组着火过程的实验研究

余永刚,金志明

南京理工大学动力工程学院!南京;210094;南京理工大学动力工程学院!南京;210094

发布日期:2021-08-15

AN EXPERIMENTAL STUDY ON IGNITION PROCESSES OF LIQUID PROPELLANT DROPLETS GROUP

Coll. of Power Engineering,Nanjing Univ. of Science and Technology,Nanjing, 210094;Coll. of Power Engineering,Nanjing Univ. of Science and Technology,Nanjing, 210094

Published:2021-08-15

摘要/Abstract

摘要： 利用挂滴装置和高速摄影系统研究HAN基液体推进剂LP－1846液滴组的着火过程,观察了液滴间相互作用对着火过程的影响,定量测试液滴组平均着火延迟期、着火温度与环境温度和液滴中心间距的关系,并对实验现象进行了讨论。研究结果对抑制液体发射药火炮压力振荡和控制燃烧稳定性有一定的指导意义。

关键词: 单元推进剂;液滴;推进剂燃烧;自燃性

Abstract: A droplet-suspending apparatus and a high speed camera are employed ininvestigation of ignition processes of HAN-based liquid propellant LP-1846 drops group. The effectsof interactions between the drops on ignition processes are observed. Mean ignition delay time andignition temperature as a function of ambient temperature and central distance between the drops arealso measured. The experimental phenomena are analyzed. The research results are importantreference for suppression of pressure oscillation and control of combustion stability in the regenerativeliquid propellant gun.

Key words: Monopropellant;Drop;Propellant combustion;Autoignition property

余永刚,金志明. 单元推进剂液滴组着火过程的实验研究[J]. 推进技术, 1997, 18(3): 103-107.