Summary
A deflagration wave was generated by putting a perforated plate in the way of a self-sustained detonation wave and interrupting it. We investigated the averaged one dimensional structure of this deflagration wave and its development through streak schlieren photography and wave speed measurement. With the increase of initial pressure, the deflagration wave varies from a laminar structure to a turbulent one. The former usually can not stand the attenuation of background rarefaction, whereas the later is capable of running up followed by an abrupt transition to detonation waves. There is a very unstable critical case between above-mentioned two situations, where the deflagration wave can usually propagate for a relatively long distance in 50-60 % CJ detonation speed. Theoretical analysis also reveals that the state of its products in this critical case perfectly matches the constant-volume combustion solution in same mixture.
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© 2009 Springer-Verlag Berlin Heidelberg
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Zhu, Y., Liang, Z., Lee, J., Yang, J. (2009). Study on perforated plate induced deflagration waves in a smooth tube. In: Hannemann, K., Seiler, F. (eds) Shock Waves. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-85168-4_62
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DOI: https://doi.org/10.1007/978-3-540-85168-4_62
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-85167-7
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