Detonation Wave Profile

Menikoff, Ralph¹ 

[1] Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

关键词: Detonation wave;    ZND profile;    Taylor wave;   

DOI  :  10.2172/1229720
RP-ID  :  LA-UR--15-29498
PID  :  OSTI ID: 1229720

学科分类：自然科学（综合）

美国|英语

来源: SciTech Connect

【 摘 要 】

The Zel???dovich-von Neumann-Doering (ZND) profile of a detonation wave is derived. Two basic assumptions are required: i. An equation of state (EOS) for a partly burned explosive; P(V, e, ??). ii. A burn rate for the reaction progress variable; d/dt ?? = R(V, e, ??). For a steady planar detonation wave the reactive flow PDEs can be reduced to ODEs. The detonation wave profile can be determined from an ODE plus algebraic equations for points on the partly burned detonation loci with a specified wave speed. Furthermore, for the CJ detonation speed the end of the reaction zone is sonic. A solution to the reactive flow equations can be constructed with a rarefaction wave following the detonation wave profile. This corresponds to an underdriven detonation wave, and the rarefaction is know as a Taylor wave.