BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Memento EPFL//
BEGIN:VEVENT
SUMMARY:Advection by shears with critical points in the presence of diffus
 ion
DTSTART:20260508T141500
DTSTAMP:20260414T222455Z
UID:3e17cbe8a9543e8f1e3f92dacd7d249d38e88ab7d2e6678196d4b359
CATEGORIES:Conferences - Seminars
DESCRIPTION:Prof. Rajendra Beekie (Imperial College London)\nAbstract:\nSh
 ear flows are one of the most well studied classes of vector fields. An im
 portant feature of shear flows is their ability to generate small scales a
 nd mix quantities that they transport. For passive scalar transport\, thes
 e mixing rates can be quantified in a rather straightforward way. \n\nHow
 ever\, quantifying mixing rates for 2d Euler linearized around non-monoton
 e shears is surprisingly subtle due to an effect known as vorticity deplet
 ion which is not present in the passive transport case. Since real fluids 
 have viscosity\, a natural question is to understand whether mixing rates 
 persist in the presence of viscosity. In this talk\, I will discuss recent
  progress on addressing this question for both the passive scalar advectio
 n-diffusion equation and the linearized Navier-Stokes equation. Based on j
 oint work with Dallas Albritton (University of Wisconsin)\, Shan Chen (Uni
 versity of Minnesota)\, and Hao Jia (University of Minnesota). \n\n 
LOCATION:MA B1 11 https://plan.epfl.ch/?room==MA%20B1%2011
STATUS:CONFIRMED
END:VEVENT
END:VCALENDAR