The effects of particle size on shock wave-dust deposit interaction

The present paper describes an interaction of a shock wave with a dust deposit. Amberlite was used as a model dust, and it was found that the wave front is dispersive and curved near the dust deposit. It was also found that the difference between the structure of the shock wave over a dust deposit and that of the shock wave through dust-free air is more pronounced as the dust particles composing the dust deposit become smaller. Direct observation of the early stage of dust dispersion behind the shock front was also performed.