Configuration of a cloud of detonation products during expansion in air

Shadowgraph techniques are used to record the configuration of detonation products in air from various kinds of high-explosive charges with spherical and cxlindrical geometries. It is established that the cloud of detonation products from a cylindrical charge after expansion to its maximum size departs considerably from a spherical configuration. The cloud of detonation products attains its ultimate size at a distance of 25–30 times the initial radius, contrary to numerical results, which indicate that this distance does not exceed 15 or 16 times the initial radius of the charge.