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SUMMARY:Wave Turbulence: solved and open problems - Nazarenko\, S (Warwick
 )
DTSTART:20081218T153000Z
DTEND:20081218T163000Z
UID:TALK15744@talks.cam.ac.uk
CONTACT:Mustapha Amrani
DESCRIPTION:Wave Turbulence (WT) refers to a statistical state of many dis
 persive modes which are weakly nonlinear on average. I will present the fu
 ndamental building blocks of the WT theory\, assumptions and their justifi
 cations\, physical examples\, solved problems and open questions. I will d
 escribe some recent work which goes beyond the traditional WT consideratio
 n of the wave spectra\, and deals with wave PDFs\, non-gaussianity\, inter
 mittency. I will outline picture of the WT cycle in which weak (on average
 ) random waves can get transformed into strong coherent structures\, which
  in turn partially dissipate their energy and partially return it to the i
 ncoherent waves.\nMy main aim will be to reach out to the stat mech commun
 ity\, in hope to find common points and approaches which could be employed
  for better understanding of the WT systems.
LOCATION:Seminar Room 1\, Newton Institute
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