Claudio Lugni

TL;DR: In this paper, the authors investigated parametric resonance in roll motion (known shortly as parametric roll) was studied for a fishing vessel in regular waves, which is an instability and resonance phenomenon that can lead the roll to reach very high oscillation amplitudes at its natural frequency, depending on the damping level involved In the worst cases it is responsible for vessel capsize.

TL;DR: In this paper, a 3D Domain-Decomposition (DD) strategy is used, where a linear potential-flow seakeeping analysis of the vessel is coupled with a local nonlinear rotational-flow investigation for the prediction of water-on-deck phenomena.

TL;DR: In this article, the effects of nonlinearities in wave kinematics and hydrodynamic loading models were investigated in very steep waves where ringing occurs and the numerical wave-loading models tend to lose validity.

TL;DR: In this article, a 3D body free to fall from different heights against a flat water surface is studied and accurate measurements of acceleration and velocity in water are performed; for the first time, local measurements of the pressure field in the air cavity entrapped behind the falling body are executed.

TL;DR: In this paper, the authors investigated the capability of X-band radar systems to estimate nearshore bathymetry fields by considering both simulated and measured radar data, and proposed an adaptive partitioning strategy that takes into account the wave evolution in nearshore shallow waters.