固体推进剂燃烧转爆轰模拟计算研究  

SIMULATING CALCULATION OF DEFLAGRATION TO DETONATION TRANSITION IN SOLID PROPELLANT

作　　者：刘德辉[1] 彭培根[1] 杨东民 

机构地区：[1]国防科学技术大学

出　　处：《推进技术》1993年第1期57-65,共9页Journal of Propulsion Technology

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％。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%.

关 键 词：固体推进剂 燃烧 爆轰 计算 

分 类 号：V435.12[航空宇航科学与技术—航空宇航推进理论与工程]