Speaker: Alessandra Lanotte (CNR NANOTEC)
Modeling the breakup of solid aggregates in turbulent flows
The breakup of solid aggregates dispersed in gas or liquids is a phenomenon of relevance for a broad variety of applications, from environmental and engineering sciences to pharmaceutical or food industries. If the turbulent suspension is dilute, breakup is only due to the hydrodynamical stresses experienced along the trajectories in the flow. In this talk, I will first briefly review how we can measure the aggregate breakup rate in 3D turbulent flows, then I will discuss a recently implemented neural network model - which includes geometrical features of the aggregate- that has been trained to classify aggregates that break or not, once the turbulent velocity gradients statistics is known.
This work receives funding from National Centre for HPC, Big Data and Quantum Computing HPC, within Italian PNRR plan, financed by Next Generation EU, and from MUR project PRIN 2022 PNRR - P20225AEF4 BREAKUP - Numerical and Experimental Investigation of Small Plastics Breakup in Complex Flows.
