Abstract.
A series of experiments supported by numerical simulations are reported on the interaction between a planar incident shock and a single obstacle. The test mixtures used were stoichiometric hydrogen and oxygen diluted with either argon or nitrogen at sub-atmospheric pressures. The main aim of the study was to determine the conditions under which a reflected detonation was generated. Observed critical conditions are compared with a simple predictive criterion based on the ratio of auto-ignition delay time behind an ideal reflected shock to the acoustic transit time across the face of the obstacle.
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Received 7 December 2001 / Accepted 3 March 2002 Published online 8 July 2002
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Thomas, G., Ward, S., Williams, R. et al. On critical conditions for detonation initiation by shock reflection from obstacles. Shock Waves 12, 111–119 (2002). https://doi.org/10.1007/s00193-002-0148-z
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DOI: https://doi.org/10.1007/s00193-002-0148-z