Trajectory structures and transport

Abstract

The special problem of transport in 2-dimensional divergence-free stochastic velocity fields is studied by developing a statistical approach, the nested subensemble method. The nonlinear process of trapping determined by such fields generates trajectory structures whose statistical characteristics are determined. These structures strongly influence the transport.

Latex file 19 pages, includes 12 EPS figures. Extended version of the invited talk at the ITCPP, Santorini, 2003

References in corpus (3)

• Particles and fields in fluid turbulence
• Intermittency in two-dimensional Ekman-Navier-Stokes turbulence
• Statistical conservation laws in turbulent transport

Cited by in corpus (8)

• Larmor radius effects on impurity transport in turbulent plasmas
• Random and quasi-coherent aspects in particle motion and their effects on transport and turbulence evolution
• Effects of the resonant magnetic perturbation on turbulent transport
• Turbulent transport of alpha particles in tokamak plasmas
• Trajectory statistics and turbulence evolution
• Hidden drifts in turbulence
• Fast generation of Gaussian random fields for direct numerical simulations of stochastic transport
• Trapping, anomalous transport and quasi-coherent structures in magnetically confined plasmas