Abstract
The objective of the present study is to investigate the mechanisms of detonation re-initiation. In addition, experiments were employed to further look into the discrepancies of the critical geometry conditions summarized from the previous research. Multiple measurement techniques have been applied. It is found that the discrepancies are mainly caused by the differences in the channel length. As the length of the bifurcation channel directly determines the shock reflection times, it can affect the re-initiation if the channel doesn’t allow sufficient times of shock reflection to take place. Another topic regarding the influence of the channel width to the detonation re-initiation phenomenon is also addressed. It is revealed that a wider channel width is preferable for detonation re-initiation because of the longer induction length during diffraction which can result in a strong explosion during the first shock reflection process.
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Li, L., Teo, C.J., Khoo, B.C., Li, J., Chang, P.H. (2019). The Influence of Shock Reflections on Detonation Re-initiation. In: Sasoh, A., Aoki, T., Katayama, M. (eds) 31st International Symposium on Shock Waves 1. ISSW 2017. Springer, Cham. https://doi.org/10.1007/978-3-319-91020-8_35
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DOI: https://doi.org/10.1007/978-3-319-91020-8_35
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