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SUMMARY:Polymer stretching in random flows - Dario Vincenzi (CNRS (Centre 
 national de la recherche scientifique))
DTSTART:20220309T143000Z
DTEND:20220309T153000Z
UID:TALK170696@talks.cam.ac.uk
DESCRIPTION:The coil&ndash\;stretch transition is the complete unravelling
  of a polymer that occurs when the polymer is immersed in a non-uniform fl
 ow field and the magnitude of the velocity gradient surpasses a critical v
 alue. It was first predicted and observed experimentally in a laminar exte
 nsional flow. Later it was discovered also in randomflows\, even thoughwit
 h partially different features. After reviewing the main results on the co
 il&ndash\;stretch transition\, I will present some recent results on polym
 er stretching in random and turbulent flows.
LOCATION:Seminar Room 1\, Newton Institute
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