WORLDmech

The classical view of turbulence emphasizes the cascade of vortices of different sizes that mediate the transport of energy from large to small scales in an otherwise featureless and stochastic fluid motion. Our daily experience shows that open and closed turbulent flows are often organized in prominent large-scale and long-living structures, so-called turbulent superstructures. They dominate the global turbulent transport, act as barriers to transport, and increase the variability and fluctuations in the flow. The colloquium will discuss turbulent superstructures from an interdisciplinary perspective and will bring together scientists from fluid mechanics, physics, applied mathematics and computer science.