Advertisement

Deflagration-to-Detonation Transition in Highly Reactive Combustible Mixtures

  • M. A. Liberman
  • M. F. Ivanov
  • A. D. Kiverin
  • M. S. Kuznetsov
  • A. A. Chukalovsky
  • T. V. Rakhimova
Conference paper

Introduction

The mechanism by which a deflagration becomes a detonation (deflagration-todetonation transition, or DDT) still remains one of the most interesting unsolved problems of combustion theory. Understanding of the mechanisms responsible for DDT is important since detonation represents the most severe form of explosive hazard in industrial accidents involving fuel-air explosions. The conclusion drawn from numerous studies which solved two dimensional Navier-Stokes equations using a one-step chemical model with Arrhenius kinetics was that the gradient of induction time (usually related to the temperature gradient), which is involved in the Zel’dovich criterion [1, 2] seems quite plausible as the mechanism of DDT. However, a one-step reaction model cannot reproduce the main properties of the combustion such as the induction time in chain-branching kinetics and detonation initiation. A detailed chemical model for the chain-branching chemistry has a profound effect on the validity of Zeldovich’s spontaneous wave concept and on the mechanism of the DDT. The primary cause for disagreement come not from three dimensional effects in the experiment but from a one-step Arrhenius kinetics which was employed for CFD simulations (see [3] for recent review) and which can not capture the principle features of the phenomena.

Keywords

Pressure Pulse Detonation Wave Induction Time Detonation Initiation Preheat Zone 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    Zeldovich, Y.B., Librovich, V.B., Makhviladze, G.M., Sivashinsky, G.I.: On the development of detonation in a non-uniformly preheated gas. Astronautica Acta 15, 313–321 (1970)Google Scholar
  2. 2.
    Zel’dovich, Y.B.: Regime classification of an exothermic reaction with nonuniform initial conditions. Combust. Flame 39, 211–226 (1980)CrossRefGoogle Scholar
  3. 3.
    Oran, E.S., Gamezo, V.N.: Origins of the deflagration-to-detonation transition in gas-phase combustion. Combust. Flame 148, 4–47 (2007)CrossRefGoogle Scholar
  4. 4.
    Liberman, M.A., Ivanov, M.F., Kiverin, A.D., et al.: Deflagration-to-detonation transition in highly reactive combustible mixtures. Acta Astronautica 67(7-8), 688–701 (2010)CrossRefGoogle Scholar
  5. 5.
    Ivanov, M.F., Kiverin, A.D., Liberman, M.A.: Hydrogen-oxygen flame acceleration and transition to detonation in channels with no-slip walls for a detailed chemical reaction model. Phys. Rev. E 83, 056313 (2011)CrossRefGoogle Scholar
  6. 6.
    Kuznetsov, M., Liberman, M., Matsukov, I.: Experimental Study of the Preheat Zone Formation and Deflagration to Detonation Transition. Comb. Sci. Tech. 182, 1628–1644 (2010)CrossRefGoogle Scholar
  7. 7.
    Liberman, M.A., Kiverin, A.D., Chukalovsky, A.A., Ivanov, M.F.: Detonation Initiation by a Temperature Gradient for a Detailed Chemical Reaction Models. In: 7th US National Combustion Meeting, Paper RK18 (2011)Google Scholar
  8. 8.
    Liberman, M.A., Kiverin, A.D., Ivanov, M.F.: On detonation initiation by a temperature gradient for a detailed chemical reaction models. Physics Letters A 375, 1803–1808 (2011)Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  • M. A. Liberman
    • 1
  • M. F. Ivanov
    • 2
  • A. D. Kiverin
    • 2
  • M. S. Kuznetsov
    • 3
  • A. A. Chukalovsky
    • 4
  • T. V. Rakhimova
    • 4
  1. 1.Department of PhysicsUppsala UniversityUppsalaSweden
  2. 2.Joint Institute for High Temperatures of RASMoscowRussia
  3. 3.Institute for Nuclear and Energy TechnologiesKarlsruhe Institute of TechnologyKarlsruheGermany
  4. 4.Skobeltsyn Institute of Nuclear PhysicsMoscow State UniversityMoscowRussia

Personalised recommendations