These lecture notes are based on a tutorial given in 2017 at a plasma physics winter school
in Les Houches. Their aim is to provide a self-contained graduate-student level introduction …

Precursor signals for bifurcation-induced critical transitions have recently gained interest
across many research fields. Common indicators, including variance and autocorrelation …

A modelling methodology to reproduce the experimental measurements of a turbulent flow
in the presence of symmetry is presented. The flow is a three-dimensional wake generated …

The von Kármán Sodium (VKS) experiment studies dynamo action in the flow generated
inside a cylinder filled with liquid sodium by the rotation of coaxial impellers (the von Kármán …

The idea of a planetary origin for the solar cycle dates back to the nineteenth century.
Despite unsurmounted problems, it is still advocated by some. Stefani, Giesecke, and Weier …

In this paper, we argue that the solar activity record, as revealed by telescopic observations
and proxy data from the abundances of cosmogenic isotopes, is consistent with the action of …

Conflict between formation of a cyclonic vortex and isotropization in forced homogeneous
rotating turbulence is numerically investigated. It is well known that a large rotation rate of …

We present a study of several systems in which a large-scale field is generated over a
turbulent background. These large-scale fields break a symmetry of the forcing by selecting …

We investigate large-scale circulation reversals in a two-dimensional Rayleigh-Bénard cell
using a proper orthogonal decomposition (POD)-based, five-mode model. The Rayleigh …

This paper investigates the dynamics of the flapping regime of a filament placed in a two-
dimensional soap-film flow for different filament lengths and flow speeds. It was found that …