Experiments for the simulation of shock waves at atomic explosions and their propagation in tubes

Shock waves were generated in a tube in three different manners in order to simulate atomic explosions: detonation of bars of explosives; firing of explosive mixtures of methane and air; and expansion of compressed air. The pressure-time histories of the shock waves were registered along the length of the tube. To obtain spreading of the boundary of the media at the detonations of explosives, the temperature variations were measured at the contact surface between driver and working gas. The oscillograms p(t) and diagrams p(r) obtained are discussed.