Physics and High-performance computation of turbulent flows with interfaces

by Alessio Roccon (Technical University of Vienna (TU Wien))

Monday Nov 14, 2022, 2:00 PM → 3:00 PM America/Chicago

Join Zoom Here

The modeling and the computational challenges involved in accurate simulations of turbulent flows laden with deformable interfaces will be presented. First, we will focus on the physics of multiphase turbulence analyzing the main challenges associated with the large span of spatial and temporal scales involved in the problem: from the interfacial phenomena scaled, to the Kolmogorov scale up to the characteristic system scale. Then, the available numerical models/methods currently used will be described, with a specific focus on the phase field method, which will be discussed in connection with interface resolved simulations of bubbles- and droplets-laden turbulent flows. Second, the parallelization and acceleration techniques employed to boost the code performance on leading edge HPC infrastructures will be presented. Finally, a brief overview of the results obtained and current developments will be given. 

Presentation

Slides