图书馆订阅: Guest
Begell Digital Portal Begell 数字图书馆 电子图书 期刊 参考文献及会议录 研究收集
国际能源材料和化学驱动期刊
ESCI SJR: 0.28 SNIP: 0.421 CiteScore™: 0.9

ISSN 打印: 2150-766X
ISSN 在线: 2150-7678

国际能源材料和化学驱动期刊

DOI: 10.1615/IntJEnergeticMaterialsChemProp.v4.i1-6.940
pages 1014-1025

MODELING OF TRANSIENT COMBUSTION REGIMES OF ENERGETIC MATERIALS WITH SURFACE EVAPORATION

Vladimir Zarko
ICKC SB RAS
Lev K. Gusachenko
Institute of Chemical Kinetics and Combustion, Russian Academy of Sciences, Novosibirsk 630090
A. D. Rychkov
Institute of Computational Technologies, Russian Academy of Sciences, Novosibirsk 630090

ABSTRACT

A one-dimensional transient model of the combustion of energetic material (EM) with surface evaporation is formulated. The model considers heat propagation and EM condensed phase decomposition via a 1st order reaction. In the gas phase, it considers heat propagation, species diffusion, exothermic decomposition of vapor via a 1st order reaction and exothermic conversion of gas components via a 2nd order reaction. The matching condition at the surface corresponds to equilibrium evaporation in the form of the Clausius-Clapeyron equation. An external radiant flux is assumed to be absorbed in the bulk of EM and not to be absorbed in the gas phase. When simulating radiative ignition, it has been revealed that it can occur in one-, two- or three-stages. First, under irradiation, the evaporation and exothermic reaction in the condensed phase is initiated with a gas flame being formed far from the burning surface. The conductive heat flux from the gas to the EM surface is vanishingly small and the low rate gasification regime is realized. If the radiant flux gradually decreases up to zero, the flame approaches the EM surface and the heat feedback from the gas phase increases several times. A sustaining combustion is governed by heat feedback from the gas flame with burning rate several times higher than the gasification rate. Numerical experiments performed with the combustion model under study have revealed the intrinsic instability of steady-state combustion in case of EM with the rate controlling zone in the condensed phase.


Articles with similar content:

MODELING AND NUMERICAL SIMULATION OF PHYSICOCHEMICAL PROCESSES OCCURRING IN THE TWO-PHASE FOAM LAYER OF BURNING RDX
International Journal of Energetic Materials and Chemical Propulsion, Vol.4, 1997, issue 1-6
Yang-Sheng Tseng, Yeu-Cherng Lu
COMBUSTION PECULIARITIES OF ADN AND ADN-BASED MIXTURES
International Journal of Energetic Materials and Chemical Propulsion, Vol.5, 2002, issue 1-6
Valery V. Serushkin, Anton I. Levshenkov, Valery P. Sinditskii, A. E. Fogelzang, V. I. Kolesov, Viacheslav Yu. Egorshev
TWO-DIMENSIONAL MODEL OF HIGH-TEMPERATURE SYNTHESIS OF AN INTERMETALLIC IN THE REGIME OF DYNAMIC THERMAL EXPLOSION
High Temperature Material Processes: An International Quarterly of High-Technology Plasma Processes, Vol.24, 2020, issue 1
Natalia V. Bukrina, Anna G. Knyazeva
PYROLYSIS BEHAVIOR OF A PARAFFIN-BASED THERMOPLASTIC POLYMER USED IN HYBRID ROCKET FUEL
International Journal of Energetic Materials and Chemical Propulsion, Vol.18, 2019, issue 4
Yuji Mishima, Nobuji Kato, Takahisa Tsugoshi, Keiichi Hori, Ayana Banno, Yutaka Wada, Ryo Nagase
Numerical Study of Critical Fire Merging Distances in Square Arrayed Multiple Fires
International Heat Transfer Conference 15, Vol.18, 2014, issue
Xiaodong Xie, Naian Liu, Wei Gao, Koyu Satoh