Abstract
The propagation phenomenon of a detonation wave is particularly interesting, because the detonation wave is composed of a 3D shock wave system accompanied by a reaction front. Thus, the passage of a detonation wave draws cellular patterns on a soot-covered plate. The pressure and temperature behind the detonation wave are extremely high and may cause serious damages around the wave. Therefore, it is of great significance from a safety-engineering point of view to decay the detonation wave with a short distance from the origin. In the present study, experiments using high-speed schlieren photography are conducted in order to investigate the behaviors of the detonation wave diffracting from two slits. The detonation wave produced in a stoichiometric mixture of hydrogen and oxygen is propagated through the slits, and the behaviors behind the slit-plate are investigated experimentally. When a detonation wave diffracts from the slits, a shock wave is decoupled with a reaction front. Since the two shock waves propagate from the slits interact with each other at the center behind the plate, the detonation wave is reinitiated by generating a hot-spot sufficient to cause local explosions. Furthermore, it is clarified that the shock wave reflected from a tube-wall is also capable of reinitiating the detonation wave. The reinitiation distance of the detonation wave from the slit-plate is correlated using a number of cells emerged from each slit.
Similar content being viewed by others
References
Peraldi, O., Knystautas, R., Lee, J.H.: Criteria for transition to detonation in tubes. In: Proceedings of Twenty-first Symposium (International) on Combustion, Combustion. Institute. pp. 1629–1637 (1986)
Obara T., Yajima S., Yoshihashi T., Ohyagi S.: A high-speed photographic study of the transition from deflagration to detonation wave. Shock Waves 6, 205–210 (1996)
Kuznetsov M.S., Alekseev V.I., Dorofeev S.B.: Comparison of critical conditions for DDT in regular and irregular cellular detonation system. Shock Waves 10, 217–223 (2000)
Radulescu M.I., Lee J.H.S., Lee J.H.S., Lee J.H.S., Kiyanda C.B., Higgins A.J., Hanson R.K.: The ignition mechanism in irregular structure gaseous detonations. Proc. Comb. Inst. 30, 1859–1867 (2005)
Mitrofanov, V.V., Soloukhin, R.I.: The diffraction of multifront detonation waves. In: Soviet Physics—Doklady, pp. 1055–1058 (1965)
Bartlmä F., Schröder K.: The diffraction of a plane detonation wave at a convex corner. Comb. Flame 66, 237–248 (1986)
Jones D.A., Sichel M., Oran E.S.: Reignition of detonations by reflected shocks. Shock Waves 5, 47–57 (1995)
Pantow E.G., Fischer M., Kratzel Th.: Decoupling and recoupling of detonation waves associated with sudden expansion. Shock Waves 6, 131–137 (1996)
Shepherd, J.E., Schultz, E., Akbar, R.: Detonation diffraction. In: Proceedings of 22nd International Symposium on Shock Waves, pp. 41–48 (1999)
Khasainov B., Presles H.N., Desbordes D., Demontis P., Vidal P.: Detonation diffraction from circular tubes to cones. Shock Waves 14, 187–192 (2005)
Ohyagi S., Obara T., Hoshi S., Cai P., Yoshihashi T.: Diffraction and re–initiation of detonations behind a backward-facing step. Shock Waves 12, 221–226 (2002)
Sorin, R., Zitoun, R., Desbordes, D.: Detonation diffraction through different geometries. In: Proceedings of 20th Interntional Colloquium on the Dynamics of Explosion and Reactive Systems CD-ROM (2005)
Sentanuhady, J., Tsukada, Y., Yoshihashi, T., Obara, T., Ohyagi, S.: Re–initiation of detonation waves behind a perforated plate. In: Proceedings of 20th International Colloquium on the Dynamics of Explosion and Reactive Systems CD-ROM (2005)
Lee J.H.S.: Dynamic parameter of gaseous detonations. Ann. Rev. Fluid Mech. 16, 311–336 (1984)
Liu Y.K., Lee J.H.S., Knystautas R.: Effect of geometry on the transition of detonation through, an orifice. Comb. Flame 56, 215–225 (1984)
Teodorczyk, A., Lee, J.H.S., Knystautas, R.: Propagation mechanism of quasi-detonations. In: Proceedings of Twenty-second Symposium (International) Combustion, Combustion Institute, pp. 1723–1731 (1988)
Ciccarelli, G., Boccio, J.L.: Detonation wave propagation through a single orifice plate in a circular tube. In: Proceedings of Twenty-seventh Symposium (International) Combustion, Comb. Inst. pp. 2233–2239 (1998)
Chao J., Otsuka T., Lee J.H.S.: An experimental investigation of the onset of detonation. Proc. Comb. Inst. 30, 1889–1897 (2005)
Ohyagi, S., Obara, T., ,Yoshihashi T., Hoshi, S., Masaki, T.: Three-dimensional cellular structure of detonations. In: Proceedings of 22nd International Symposium Shock Waves, pp. 247–250 (1999)
Obara T., Sentanuhady J., Tsukada Y., Ohyagi S.: Re-initiation processes of detonation wave behind slit-plate—influence of initial test gas pressure – (in Japanese). Trans. Jpn. Soc. Mech. Eng. Ser. B 72, 3158–3165 (2006)
Shepherd, J.E. (ed.): Detonation database. http://www.galcit.caltech.edu/detn_db/html/db.html/
Author information
Authors and Affiliations
Corresponding author
Additional information
Communicated by L. Bauwens.
Rights and permissions
About this article
Cite this article
Obara, T., Sentanuhady, J., Tsukada, Y. et al. Reinitiation process of detonation wave behind a slit-plate. Shock Waves 18, 117–127 (2008). https://doi.org/10.1007/s00193-008-0147-9
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s00193-008-0147-9