Massimo Cencini

Growth of small localised perturbations in surface quasi-geostrophic turbulence

The butterfly effect, namely the amplification of an initially localised infinitesimal perturbation, is a fundamental hallmark of chaotic systems. While this phenomenon is well understood in low-dimensional chaotic systems, its implications become more complex in spatially extend...

Inferring the turbulent breakup of colloidal aggregates using Graph Neural Networks

Solid aggregates in turbulent suspensions may break under the action of shear stresses. We explore the use of Graph Neural Networks (GNN) to infer aggregate fragmentation once the aggregate structure and flow velocity gradients are known. We consider two models: the first GNN is...