Dispersion of Particles in Bi-Directional-Binary, Two-Dimensional, Incompressible Velocity Fields: Some Numerical Experiments
An important feature of turbulent flow is its ability to disperse contaminants. But, because the most convenient way of describing or measuring the velocity field is in Eulerian or “laboratory” coordinates, and particle dispersion is naturally expressed in Lagrangian or “material” coordinates, dispersion is not well predicted in most existing theories or data. For example, the two-point Eulerian statistics which are often used to characterize the field do not give unique two-point Lagrangian displacement statistics which describe particle dispersion.
KeywordsRandom Walk Relative Dispersion Particle Dispersion Exit Velocity Initial Separation
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