The understanding of fluid turbulence has considerably progressed in recent years. The
application of the methods of statistical mechanics to the description of the motion of fluid …

▪ Abstract Interstellar turbulence has implications for the dispersal and mixing of the
elements, cloud chemistry, cosmic ray scattering, and radio wave propagation through the …

Chaos: from simple models to complex systems aims to guide science and engineering
students through chaos and nonlinear dynamics from classical examples to the most recent …

Two-dimensional turbulence: a review of some recent experiments Page 1 Two-dimensional
turbulence: a review of some recent experiments To cite this article: Hamid Kellay and Walter I …

We study the problem of the optimal mixing of a passive scalar under the action of an
incompressible flow in two space dimensions. The scalar solves the continuity equation with …

In 1959 Batchelor predicted that the stationary statistics of passive scalars advected in fluids
with small diffusivity k should display a power spectrum along an inertial range contained in …

With the aid of several demonstration experiments, it is shown how a stirred scalar mixture
relaxes towards uniformity through an aggregation process. The elementary bricks are …

Many chemical and biological processes take place in fluid environments in constant
motion? chemical reactions in the atmosphere, biological population dynamics in the ocean …

In this paper, we propose a novel optical flow formulation for estimating two-dimensional
velocity fields from an image sequence depicting the evolution of a passive scalar …

We propose in this paper a new formulation of optical flow dedicated to 2D incompressible
turbulent flows. It consists in minimizing an objective function constituted by an observation …