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SUMMARY:Dissipation enhancing flows and the applications to the Kuramoto S
 ivashinsky Equation - Yuanyuan Feng (Pennsylvania State University)
DTSTART:20220310T160000Z
DTEND:20220310T170000Z
UID:TALK170684@talks.cam.ac.uk
DESCRIPTION:In this talk\, we would study how stirring would help dissipat
 e the energy and the applications to the nonlinear models. We would first 
 introduce the dissipation enhancing flows and study the dissipation time o
 f such flows\, where the dissipation time is the time required for the sys
 tem to dissipate a constant fraction of its initial energy. We study the d
 issipation time of mixing flows\, shear flows and&nbsp\;"planar helical fl
 ows". Then we will apply these flows to the passive flame propagation (Kur
 amoto-Sivashinsky)&nbsp\;models&nbsp\;in 2d or 3d to obtain global existen
 ce of the solution.
LOCATION:Seminar Room 1\, Newton Institute
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