Character of the fast jet efflux upon detonation of shaped charges

The space-time structure of fast jets flowing out from the cumulative groove of the detonating charge of a brisant explosive has been investigated. The velosity field of the jet and the flow of detonation products have been determined. We have revealed a change in the structure of the front end of the jet followed by an increase in its luminescence intensity and a decrease in the efflux velocity upon introduction into the cumulative groove of mixtures of metals and graphite. The sizes of the jet inhomogeneities reflecting the spatial scale of zones of selective change in its thermodynamic parameters have been estimated.