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SUMMARY:Transitional plane Couette flow: an alternative to the low dimensi
 onal dynamical systems approach - Manneville\, P (Ecole Polytechnique)
DTSTART:20080909T111000Z
DTEND:20080909T113000Z
UID:TALK13343@talks.cam.ac.uk
CONTACT:Mustapha Amrani
DESCRIPTION:The transition from the turbulent state to the laminar regime 
 in plane Couette flow is studied by means of a model focusing on the in-pl
 ane (x\,z) space dependence of a few velocity amplitudes with reduced wall
 -normal (y) dependence. The model appears well suited to study the low-R t
 ransitional range. I shall present my latest results obtained at very larg
 e aspect ratio (typically 768x768 with gap rescaled to 1) and attempt to c
 onvince people that the statistical physics of spatiotemporal chaos in ext
 ended geometry offers a valuable alternative to the well-accepted interpre
 tation of the relaxation of turbulence in terms of chaotic transients typi
 cal of low-dimensional dynamical systems.
LOCATION:Seminar Room 1\, Newton Institute
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