Combustion, Explosion and Shock Waves

, Volume 31, Issue 4, pp 466–470 | Cite as

On the mechanism of weakening and breaking of gas detonation in channels with acoustically absorbing walls

  • O. V. Sharypov
  • Ye. A. Pirogov
Article

Abstract

The physical mechanisms of the weakening of detonation waves in channels with acoustically absorbing and, particularly, porous walls are analyzed on the basis of experimental data available. The effect of weakening (and breaking) of a multifront detonation wave due to the inelastic properties of the channel walls was numerically investigated within the framework of a simplified mathematical model for propagation of two-dimensional gas detonation. The role of different physical mechanisms in the narrowing of the domain of near-critical detonation regimes observed experimentally is determined. A criterion for effectiveness of the influence of the acoustic properties of the wall on the detonation wave is formulated.

Keywords

Experimental Data Mathematical Model Dynamical System Mechanical Engineer Physical Mechanism 

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References

  1. 1.
    A. A. Vasil'ev, “Near-limit regimes of detonation in channels with porous walls,”Fiz. Goreniya Vzryva,30, No. 1, 101–106 (1994).Google Scholar
  2. 2.
    A. A. Borisov and O. V. Sharypov, “Modeling of the structure of the unstable front of gas detonation,”Izv. Sib. Otd. Akad. Nauk SSSR, Ser. Tekh. Nauk, No. 2, 50–55 (1989).Google Scholar
  3. 3.
    A. A. Borisov, E. A. Pirogov, and O. V. Sharypov, “Modeling of detonation front dynamics,”, in: Combustion, Detonation, Shock Waves: Proc. Zel'dovich Memorial. Int. Conf. on Combustion, 12–17 Sept. 1994. Moscow: Inst. Chem. Phys.,2, (1994), pp. 434–436.Google Scholar
  4. 4.
    A. A. Borisov and O. V. Sharypov, “Modelling of the transition from the regular to irregular structure of the cellular front of gas detonation,”Fiz. Goreniya Vzryva,29, No. 3, 159–164 (1993).Google Scholar
  5. 5.
    S. Taki and T. Fudgiwara, “A numerical analysis of two-dimensional nonstationary detonation waves,”AIAA J.,16, No. 1, 93–98 (1978).Google Scholar

Copyright information

© Plenum Publishing Corporation 1996

Authors and Affiliations

  • O. V. Sharypov
  • Ye. A. Pirogov

There are no affiliations available

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