Abstract
In this study, the interaction of a planar shock wave with a group of particles has been investigated using high-speed photography and dynamic pressure measurements. Experiments were carried out in a horizontal circular shock tube. The influence of the particle loading ratio, particle diameter, driving gas and shock wave Mach number on the acceleration was studied. It was found that the higher the particle loading ratio, the greater was the particle velocity. This is due to the higher driving pressure. Helium and nitrogen gases play quite different roles in acceleration. Pressure multiplication during shock wave interaction with particles also appears. Based on the experimental results, the discussion regarding partial quantitative velocities and accelerations of particle groups, as well as the attenuation factors when shock waves pass through the particles, is given.
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Communicated by F. Zhang.
This paper was based on work that was partly presented at the 27th International Symposium on Shock Waves, St. Petersburg, Russia, July 19–24, 2009.
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Zhang, L.T., Shi, H.H., Wang, C. et al. Aerodynamic characteristics of solid particles’ acceleration by shock waves. Shock Waves 21, 243–252 (2011). https://doi.org/10.1007/s00193-011-0317-z
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DOI: https://doi.org/10.1007/s00193-011-0317-z