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SUMMARY:Statistics of eddy transport - Vlad\, M (National Institute of Las
 er\, Plasma and Radiation Physics)
DTSTART:20131031T173500Z
DTEND:20131031T181000Z
UID:TALK48619@talks.cam.ac.uk
CONTACT:Mustapha Amrani
DESCRIPTION:Co-author: Florin Spineanu (National Institute of Laser\, Plas
 ma and Radiation Physics) \n\nA semi-analytical method for the study of ed
 dy transport in presented. It determines the statistics of particle trajec
 tories using the decorrelation trajectories\, which are determined from th
 e Eulerian correlation of the velocity. The fraction of free trajectories 
 that effectivy determines the transport decreases with the increase of the
  Kubo number. The statistical method is able to describe the transport in 
 these conditions where it is produced by a minority of the events. The eff
 ect of particle collisions is analysed. We show that eddy diffusion is str
 ongly amplified by weak collisions and that the effective diffusion coeffi
 cient can be much larger than both the collisional diffusion coefficient a
 nd the eddy diffusion coefficients.\n\n
LOCATION:Seminar Room 1\, Newton Institute
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