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Phys. Rev. E 70, 056304 (2004) [14 pages]

Trajectory structures and transport

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Madalina Vlad and Florin Spineanu
National Institute of Fusion Science, Toki 509-5292, Japan and National Institute for Laser, Plasma and Radiation Physics, Association Euratom–MEC Romania, P.O. Box MG-36, Magurele, Bucharest, Romania

Received 18 September 2003; revised 28 April 2004; published 15 November 2004

The special problem of transport in two-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.

© 2004 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevE.70.056304
DOI:
10.1103/PhysRevE.70.056304
PACS:
47.27.Qb, 52.35.Ra, 05.40.−a, 05.10.Gg