A deflagration analysis of porous energetic materials with two-phase flow and a multiphase sequential reaction mechanism

被引：2
作者：
Margolis, SB
机构：
[1] Sandia National Laboratories,Combustion Research Facility
来源：
JOURNAL OF ENGINEERING MATHEMATICS | 1997年 / 31卷 / 2-3期
关键词：
deflagration; two-phase flow; porous materials; activation energy; asymptotics;
D O I：
10.1023/A:1004239528221
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A theoretical analysis for the unconfined deflagration of a porous energetic material is developed for a two-step global reaction mechanism that consists of the condensed-phase combustion of the reactive material to produce gas-phase intermediates, followed by a gas-phase reaction that produces final gas-phase products. An asymptotic approach is employed, leading to explicit formulas for the deflagration velocity in specific parameter regimes. The results clearly indicate the influences of two-phase flow and the multiphase, multi-step chemistry on the burning rate, and serve to further characterize the combustion behavior of a significant class of degraded nitramine-type propellants for which the present analysis is applicable.
引用
收藏
页码：173 / 203
页数：31
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