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Microswimmers in an axisymmetric vortex flow
José-Agustín Arguedas-Leiva, Michael Wilczek
Microswimmers are encountered in a wide variety of biophysical settings. When interacting with flow fields, they show interesting dynamical features such as trapping, clustering, a…
Large-Scale Pattern Formation in the Presence of Small-Scale Random Advection
Gregor Ibbeken, Gerrit Green, Michael Wilczek
Despite the presence of strong fluctuations, many turbulent systems such as Rayleigh-Bénard convection and Taylor-Couette flow display self-organized large-scale flow patterns. How…
Resolved energy budget of superstructures in Rayleigh-Bénard convection
Gerrit Green, Dimitar G. Vlaykov, Juan Pedro Mellado +1
Turbulent superstructures, i.e. large-scale flow structures in turbulent flows, play a crucial role in many geo- and astrophysical settings. In turbulent Rayleigh-Bénard convection…
Persistent accelerations disentangle Lagrangian turbulence
Lukas Bentkamp, Cristian C. Lalescu, Michael Wilczek
Particles in turbulence frequently encounter extreme accelerations between extended periods of quiescence. The occurrence of extreme events is closely related to the intermittent s…