The hydroelastic interaction between an underwater explosion and an elastic plate is investigated num- erically through a domain-decomposition strategy. The three-dimensional features of the problem require a large computational effort, which is reduced through a weak coupling between a one-dimensional radial blast solver, which resolves the blast evolution far from the boundaries, and a three-...

The interaction between an underwater explosion and a composite propeller involves several physical phenomena that an accurate numerical simulation needs to capture. These include proper description of the initial explosion shock wave, of its propagation in the water, and of its interaction with the propeller blades and any other neighboring boundaries. In this work, a numerical procedure which...

The generation of an extreme water state 130 GPa, 5000 K, and 3.4 g /cm3 which is characterized as dense plasma at the axis of a converging shock wave is reported. A 4 kJ pulse generator was used to explode a 40 Cu-wire array, generating a cylindrical shock wave. The measured shock wave trajectory and energy deposited into the water flow were used in hydrodynamic simulations coupled with the eq...

Abstract In the numerical simulation research for underwater explosion, selection of parameters has a great influence on results calculation. Based one-dimensional spherical symmetry model, this paper systematically studies three factors: grid size, water state equation and artificial viscosity coefficient important physical explosion when TNT explosive is exploded in water. The selected are sh...

During the Shallow Water 2006 Experiment, SW06, a power supply for seabed-moored oceanographic equipment suffered an accidental explosion. The equipment was located on the New Jersey Shelf, 175 kilometers south-east of New York. Acoustic signals emitted by the explosion were detected by hydrophone sensors that form part of the International Monitoring System (IMS) of the Comprehensive Test-Ban ...