NUMERICAL-SIMULATION OF UNDERWATER EXPLOSIONS

This paper presents a numerical study of the problems of underwater ex plosions. The numerical results of the transient pressures in both exp losive and surrounding water are shown. Comparisons with experimental data for both cast TNT (Trinitrotoluene) and PETN (Pentaerythritol Tet ranitrate) explosives confirm that the suggested numerical model is ca pable of providing good predictions for both magnitude and form of the pressure transient. Compared with general theoretical methods, the pr esent numerical simulation can be applied to a variety of underwater e xplosion scenarios, e.g., arbitrary charge shape and orientation; mult iple charges; and reflections of shock waves at boundary surfaces.