固体推进剂燃烧转爆轰模拟计算研究

推进技术 ›› 1993, Vol. 14 ›› Issue (1): 57-65.

固体推进剂燃烧转爆轰模拟计算研究

刘德辉,彭培根,杨东民

国防科学技术大学;国防科学技术大学;国防科学技术大学

发布日期:2021-08-15

SIMULATING CALCULATION OF DEFLAGRATION TO DETONATION TRANSITION IN SOLID PROPELLANT

National University of Defense Technology;National University of Defense Technology;National University of Defense Technology

Published:2021-08-15

摘要/Abstract

摘要： 采用一维分离两相流反应模型以及变步长跳步差分计算格式,模拟了固体推进剂的燃烧转爆轰过程。计算结果详细、合理地描述了推进剂在燃烧转爆轰过程中的流场分布情况。文中建立了确定诱导爆轰距离(L_DDT的方法,由该法所得L_DDT的值与实验值符合得较好,其误差小于15％。

关键词: 固体推进剂;推进剂燃烧;爆轰;计算方法

Abstract: In this paper, the simulation calculation of deflagration to detonation transition (DDT) process in solid propellant was carried out by use of one-dimensional separated two-phase reactive flow model and "Leap-Frog" method with variable time steps. The detailed condition of the flow field during DDT in propellant was described. A new method to determine the pre-detonation distance LDDT was presented. LDDT value obtained from the proposed method agrees with exprimental result within 15%.

Key words: Solid propellant;Propellant combustion;Detonation;Calcu- lation method

刘德辉,彭培根,杨东民. 固体推进剂燃烧转爆轰模拟计算研究[J]. 推进技术, 1993, 14(1): 57-65.