Numerical simulation of underwater explosions

Abstract

This paper presents a numerical study of the problems of underwater explosions. The numerical results of the transient pressures in both explosive and surrounding water are shown. Comparisons with experimental data for both cast TNT (Trinitrotoluene) and PETN (Pentaerythritol Tetranitrate) explosives confirm that the suggested numerical model is capable of providing good predictions for both magnitude and form of the pressure transient. Compared with general theoretical methods, the present numerical simulation can be applied to a variety of underwater explosion scenarios, e.g., arbitrary charge shape and orientation; multiple charges; and reflections of shock waves at boundary surfaces.