Related Experiment Video
Updated: Aug 11, 2026

Confocal Imaging of Confined Quiescent and Flowing Colloid-polymer Mixtures
Published on: May 20, 2014
Advection of passive particles in the Kolmogorov flow
1Equipe Dynamique des Systemes Complexes, LPIIM, CNRS-Universite de Provence, Centre de St. Jerome, Case 321, 13397 Marseille Cedex 20, France.
Abstract:
A statistical analysis of the advection of passive particles in a flow governed by driven two-dimensional Navier-Stokes equations (Kolmogorov flow) is presented. Different regimes are studied, all corresponding to a chaotic behavior of the flow. The diffusion is found to be strongly asymmetric with a very weak transport perpendicular to the forcing direction. The trajectories of the particles are characterized by the presence of traps and flights. The trapping time distributions show algebraic decrease, and strong anomalous diffusion is observed in transient phases. Different regimes lead to different types of diffusion, i.e., no universal behavior of diffusion is observed, and both time and space properties are needed to define anomalous transport. (c) 2001 American Institute of Physics.
Related Concept Videos
Steady Flow of a Fluid Stream
During this process, the momentum of the fluid within the control volume remains constant over the time interval dt. By applying the...
Passive Diffusion: Overview and Kinetics
When administered orally, drugs establish a substantial concentration gradient between the gastrointestinal (GI) lumen and the bloodstream, expediting their diffusion into...
Bernoulli's Equation for Flow Along a Streamline
Irrotational Flow
Plane Potential Flows
Uniform Flow
Uniform flow...
Couette Flow

