Advertisement

Experimental Research on the Detonation in Gaseous Mixtures with Suspended Aluminum Particles

  • X. Zhang
  • H. ChenEmail author
  • J. Li
  • S. Zhang
  • H. Yu
Conference paper

Abstract

The experiments have been performed in a horizontal detonation tube having a 13-m-long test section with 224 mm internal diameter. The suspended aluminum particles are spherical with a diameter range of 1–50 μm, using a particle concentration of 300 g/m3 approximately. It is found that the single-front and double-front detonation waves can propagate in a mixture of φ = 1.0 H2–air and aluminum particles which react with water vapor produced by gaseous detonation. The pressure records show that the detonation structure is double front when using 50 or 30 μm aluminum particles and that single front when using 20, 10, or 1 μm ones. However, these single-front detonation waves don’t have the same properties. The detonation velocity using 1 μm particles is increased by 3.3% from the value of the baseline gas detonation as the heat release between particles and gases starts before the sonic surface and supports the shock, while the 10 and 20 μm ones start behind the sonic surface, so the detonation velocities cannot be increased. The single-front structure displayed in pressure records using 10 and 20 μm particles is because of the delay of the second front which is too short to distinguish in the pressure records.

References

  1. 1.
    M.W. Beckstead, A summary of aluminum combustion, Internal Aerodynamics in Solid Rocket Propulsion, Belgium, 2002Google Scholar
  2. 2.
    F. Zhang, Detonation of gas-particle flow, Shock Wave Science and Technology Reference Library: Heterogeneous Detonation, 2009Google Scholar
  3. 3.
    B. Veyssiere, Detonation in gas-particle mixtures. J. Propuls. Power 1269, 22 (2006)Google Scholar
  4. 4.
    B. Veyssiere, W. Ingignoli, Existence of the detonation cellular structure in two-phase hybrid mixtures. Shock Waves 291, 12 (2003)Google Scholar
  5. 5.
    F. Zhang, H. Gronig, DDT and detonation waves in dust-air mixtures. Shock Waves 53, 11 (2003)Google Scholar
  6. 6.
    B. Veyssiere, B.A. Khasainov, Structure and multiplicity of detonation regimes in heterogeneous hybrid mixtures. Shock Waves 171, 4 (1994)Google Scholar
  7. 7.
    B.A. Khasainov, B. Veyssiere, Initiation of detonation regimes in hybrid two-phase mixtures. Shock Waves 9, 6 (1996)Google Scholar

Copyright information

© Springer International Publishing AG, part of Springer Nature 2019

Authors and Affiliations

  1. 1.State Key Laboratory of High-Temperature Gas DynamicsInstitute of Mechanics, Chinese Academy of SciencesBeijingChina
  2. 2.School of Engineering ScienceUniversity of Chinese Academy of SciencesBeijingChina

Personalised recommendations