Open AccessMulti-front detonation structure in two-fuel mixtures – numerical modelling
Author(s) -
A. V. Trotsyuk,
P. A. Fomin
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1666/1/012070
Subject(s) - detonation , mechanics , front (military) , materials science , channel (broadcasting) , computation , transverse plane , range (aeronautics) , computer simulation , flow (mathematics) , stage (stratigraphy) , numerical analysis , thermodynamics , chemistry , physics , explosive material , mathematics , geology , meteorology , structural engineering , composite material , engineering , mathematical analysis , paleontology , organic chemistry , algorithm , electrical engineering
A numerical simulation of a two-dimensional (2D) structure of the detonation wave (DW) in a two-fuel gaseous mixtures with air mixture at normal initial condition has been conducted. This study is based on a two-stage generalised model of detonation kinetics for a mixtures of two fuels first proposed by us. The computations have been performed in a wide range of channel height. The changes in the 2D front structure of the self-sustaining DW on variations of the height of the channel have been studied. From the analysis of the flow structure and the number of primary transverse waves in channel, the dominant sizes of the detonation cell for studied mixture have been determine. Numerical data on the detonation cell sizes have been carefully analyzed and compared with available experimental data.