Department of Defence

Opinion Dynamics Modelling: Distinct Attraction and Repulsion Topologies Highlight Quantitative Effects of Trolling

Abstract We introduce a model of opinion dynamics based on networked nonlinear differential equations. The model combines a linear attraction with a repulsive hyperbolic tangent interaction, labelled controversialness . For low controversialness, the model displays universal cons...

Experimental investigation of ship airwake with wave-induced motions

The turbulent airwake over a moving ship is experimentally investigated in a wind-wave facility using a 1:200 scaled NATO-GD model. Three motion scenarios are examined: heaving, pitching, and combined motions, naturally driven by incoming waves. Particle Image Velocimetry measure...