Investigation on Applicability of Shock Similar Law for Underwater Explosion of Aluminiferous Explosive

Aiming at the notable non-ideal characteristic of aluminiferous explosive, applicability of shock similar law at underwater explosion far-field is explored. Experiments are carried out in the blast-pond, in which pressure sections of shock wave are tested at different distance to charge center. Peak pressure and time constant are obtained. Combining dimension analysis and characteristic of aluminiferous explosive, applicability of shock similar law is discussed. It is shown that energy produced by the reaction of aluminum power and detonable production should be eliminated, while shock similar law is applied to aluminiferous charge.