Calculating the structure of detonation waves

Batalova, M. V.; Bakhrakh, S. M.; Zaguskin, V.L.; Zubarev, V. N.

doi:10.1007/bf00851623

J Appl Mech Tech Phys

1973

DOI: 10.1007/bf00851623

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Calculating the structure of detonation waves

M. V. Batalova¹,

S. M. Bakhrakh²,

V.L. Zaguskin³

et al.

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2017

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“…Thus, the width of a detonation wave can be estimated. Note that earlier this approach was proposed to use in [9], and also it was noted that most of the difference methods for calculating of detonation waves do not describe their structures, in particular, they do not estimate the width of detonation zone. The calculated pressure profile for stoichiometric hydrogen-oxygen mixture at p 0 =530 mm Hg is shown below in Fig.3.…”

mentioning

confidence: 99%

Estimation of the Width of the Stationary Detonation Wave in the Model of Zel'dovich-Neumann-Döring

Tityapkin¹,

Волков²

2017

ATBP

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43[5] А. И. Павлов, -Повышение адекватности имитационных моделей нелинейных диcсипативных объектов,‖ Автоматизация технологических и бизнес-процессов, ном. 17, сс. 4-7, 2014; [6] From the viewpoint of explosion protection the most important problems are the detonation initiation, the structure of detonation waves, the detonation limits (on concentration and initial pressure), and the limiting detonation regime (spin and a gallop). All of these problems are connected with the problem of stability of one-dimensional stationary detonation wave. A detailed analysis of the detonation wave instability allows to calculate the structure of multifront (cellular) detonation, estimating the cell size by the wave length of perturbations with maximum velocity for amplitude increase. The inversely proportional dependence between the detonation cell size and the initial combustible mixture pressure allows to control the detonation process, which is important for solving practical problems of explosion. For these cases a problem of estimation for a detonation wave width, including a chemical reaction zone and / or the induction zone, is important, especially if there are no experimental data. Solving of this problem is the purpose of this study.V.A. Michelson [1] was the first who gave physical explanation for observations of detonations in gas mixtures. Chapman and Jouget [2,3] developed idea about detonation wave as a shock wave with the small time of chemical transformation directly in the front. Reaction zone was considered simply as a surface of discontinuity. Their hypothesis that the velocity of detonation products is equal to the local velocity of sound closed the set of equations consisting of conservation laws and the

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mentioning

confidence: 99%

Estimation of the Width of the Stationary Detonation Wave in the Model of Zel'dovich-Neumann-Döring

Tityapkin¹,

Волков²

2017

ATBP

View full text Add to dashboard Cite

show abstract

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Calculating the structure of detonation waves

Cited by 1 publication

References 6 publications

Estimation of the Width of the Stationary Detonation Wave in the Model of Zel'dovich-Neumann-Döring

Estimation of the Width of the Stationary Detonation Wave in the Model of Zel'dovich-Neumann-Döring

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