Model for the propagation of a stationary reaction front in a viscoelastic medium

A. G. Knyazeva, E. A. Dyukarev

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

A coupled thermomechanical model for the propagation of a stationary chemical-reaction wave in a condensed medium is developed. Stresses and strains that arise during the reaction as a result of thermal and "concentration" expansion of the material are related by Maxwell's equations for a viscoelastic medium. The expression for the heat flux is written as a generalized Fourier law with finite relaxation time for the heat flux. It is shown that deformation of the material in the reaction zone can lead to an apparent change in the activation energy, heat effect, and other characteristics of the system. This model allows for the existence of two different - subsonic and supersonic - regimes of propagation of the front, as well as the model in which the stress-and strain-tensor components are related by a generalized Hooke's law.

Original languageEnglish
Pages (from-to)452-461
Number of pages10
JournalCombustion, Explosion and Shock Waves
Volume36
Issue number4
DOIs
Publication statusPublished - 1 Jan 2000

Fingerprint

propagation
Heat flux
heat flux
Fourier law
Maxwell equations
Maxwell equation
Thermal effects
Relaxation time
Tensors
temperature effects
Chemical reactions
chemical reactions
Activation energy
relaxation time
tensors
activation energy
expansion
Hot Temperature

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Fuel Technology
  • Energy Engineering and Power Technology
  • Physics and Astronomy(all)

Cite this

Model for the propagation of a stationary reaction front in a viscoelastic medium. / Knyazeva, A. G.; Dyukarev, E. A.

In: Combustion, Explosion and Shock Waves, Vol. 36, No. 4, 01.01.2000, p. 452-461.

Research output: Contribution to journalArticle

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