Various problems concerning the effects of the boundaries of the ocean on the propagation of pressure waves In the ocean are considered. The propagation of a transient pressure wave In a wedge shaped region of fluid Is treated. This Is the model chosen to describe the situation In which an underwater explosion takes place In a coastal ocean region which Is characterized by a strongly sloping bo...

Although the cavitation phenomenon in underwater explosion has been researched for more than 100 years, phase transition models based on mass and heat exchange between liquid its vapor phases have only established past decade. In this study, secondary was first captured by a four-equation system. The bulk near free surface induced numerically investigated, three typical cases were investigated ...

Cosmic ray bursts (CRBs) from mergers or accretion induced collapse of neutron stars that hit an Earth-like planet closer than ∼ 1 kpc from the explosion produce lethal fluxes of atmospheric muons at ground level, underground and underwater. These CRBs also destroy the ozone layer and radioactivate the environment. The mean rate of such life devastating CRBs is one in 100 million years (Myr), c...

Prediction of underwater explosion response coated composite cylinders using machine learning (ML) requires a large, consistent, accurate, and representative dataset. However, such reliable large experimental dataset is not readily available. Besides, the ML algorithms need to abide by fundamental laws physics avoid non-physical predictions. To address these challenges, this paper synergistical...

The development of SMU-I, a new autonomous & remotely-operated vehicle (ARV) is described. Since it has both the characteristics of autonomous underwater vehicle (AUV) and remote operated underwater vehicle (ROV), it is able to achieve precision fix station operation and manual timely intervention. In the paper the initial design of basic components, such as vehicle, propulsion, batteries etc. ...