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SUMMARY:Secondary shear instabilities on Kelvin-Helmholtz braids - Emma Bo
 uckley (University of Cambridge)
DTSTART:20251008T120000Z
DTEND:20251008T130000Z
UID:TALK237283@talks.cam.ac.uk
CONTACT:Emma
DESCRIPTION:I will be talking about my summer research project from the Wo
 ods Hole GFD programme. \n\nKH instabilities are widespread in nature and 
 a dominant form of stratified shear instability. The primary billow is wel
 l understood\, with the classical Miles–Howard stability condition\, Ri>
 1/4. In this talk\, we are interested in the secondary instabilities that 
 arise as the primary billow develops. The occurrence and precise nature of
  these secondary instabilities is crucial for understanding the transition
  to turbulence and mixing. In particular\, we focus on secondary *shear* i
 nstabilities that form on the *braid*\, motivated by estuarine observation
 s. We investigate these using 2D DNS and compare the results with a reduce
 d inviscid model.\n\n_This is an informal lunchtime seminar\, please bring
  along your lunch._
LOCATION:MR12
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