The ERC ICE-FLOE project studies unresolved ocean–sea-ice interactions that limit climate predictions. The postdoc will couple large-eddy ocean simulations with discrete-element sea-ice models to investigate melting, breakage and turbulence, compare results with Arctic and Antarctic observations, and develop parameterisations for global climate models. The role includes international collaboration and a possible Antarctic research cruise. The temporary appointment lasts one to three years at 38–40 hours weekly, with a listed salary range of €3,546–€5,538. The intended start is January–March 20
Seminar · Dynamical Systems
Exact coherent structures and transition to turbulence in a confined active nematic
Caleb Wagner · University of Nebraska-Lincoln
Mon, Feb 28, 2022 · 00:00 UTC
Active matter describes a class of systems that are maintained far from equilibrium by driving forces acting on the constituent particles. Here I will focus on confined active nematics, which exhibit especially rich flow behavior, ranging from structured patterns in space and time to disordered turbulent flows. To understand this behavior, I will take a deterministic dynamical systems approach, beginning with the hydrodynamic equations for the active nematic. This approach reveals that the infinite-dimensional phase space of all possible flow configurations is populated by Exact Coherent Struc