COMUE Lille Nord de France, CNRS Nord – Pas de Calais et Picardie, Université de Lille
Gare Saint Sauveur, Lille – October 7 and 8, 2017
Stand Voyage dans la turbulence
Stefano Berti and Enrico Calzavarini
Far from being an exception, fluid turbulence is a widely spread phenomenon, with impacts on several technical and scientific problems: from energy production to the performance of transportation means, climate, the distribution of biological species in the environment, or planet formation. Due to its spatially multiscale and temporally irregular character, turbulence is a complex phenomenon. Its detailed comprehension still represents a major open problem of classical physics. Some important advances on the understanding of its basic mechanisms have been possible thanks to statistical approaches developed in the twentieth century. At the core of this theory lies the concept of interactions among eddies (or vortices) of different sizes and the related exchanges of energy. These determine the essential characteristics of the flow, particularly its fractal (i.e. self-similar) nature and the distribution of energy among eddies.
More details in our poster [pdf]