Abstract
An analysis of the results of a three-dimensional numerical simulation of the flow in a conical shock tube (CST) with an angle of 38° revealed that the blast waves formed in such a tube have a pressure profile similar to spherical shock waves (SSWs) with a pronounced rarefaction phase following the compression phase. It is established that the main difference between the flow in conical geometry and the spherical case is related to the change in the flow parameters due to the interaction with the bounding surface(cone wall). The revealed inhomogeneity of the flow manifests itself in the form of pressure pulsations in the rarefaction phase in the absence of a secondary compression phase. It is concluded that a CST is an effective tool for reproducing dynamic loads under a spherical explosion.
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The study was carried out with a grant from the Russian Science Foundation (project no. 19-19-00554).
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Translated by M. Drozdova
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Medvedev, S.P., Ivantsov, A.N., Mikhailin, A.I. et al. Specific Features of the Flow in a Conical Shock Tube. Russ. J. Phys. Chem. B 14, 601–606 (2020). https://doi.org/10.1134/S199079312004020X
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DOI: https://doi.org/10.1134/S199079312004020X