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SUMMARY:MechE Colloquium: How flight\, clouds and turbulence teach us abou
 t each other
DTSTART:20221101T120000
DTEND:20221101T130000
DTSTAMP:20260609T140941Z
UID:650acb3492a42b0b8ee7a172f029eb8464eb9c2fba5854967bf631cf
CATEGORIES:Conferences - Seminars
DESCRIPTION:Prof. Gregory Bewley\, Sibley School of Mechanical and Aerospa
 ce Engineering\, Cornell University\nAbstract: In addition to steady winds
  and thermals\, a bird in flight encounters gusts and puffs. A bird probab
 ly embodies practical knowledge about whether these fluctuations will lift
  or slow it. These same fluctuations tend to accelerate cloud droplets dow
 nward as they fall to earth. At BATL\, we take the perspective of a bird\,
  droplet\, or particle moving with a turbulent flow to understand how we m
 ight put turbulence to work for us. In order to do this\, we need to under
 stand turbulence itself. At present we cannot predict the sometimes intens
 e bursts or subtle structures created by turbulence\, nor their roles in t
 he lifetimes of clouds or birds. At BATL\, we have observed how important 
 turbulence is to flight\, how it can benefit flight\, how it mediates inte
 ractions between cloud droplets\, and how the structure of turbulence is b
 oth detailed and universal. Because of the difficulty of these problems\, 
 solutions come through intensive collaboration that integrate a diversity 
 of approaches\, which we actively seek\, and which also broaden our studen
 ts’ perspectives. What we hope results from our work includes new princi
 ples of flight that embrace fluctuations rather than rejecting them\, new 
 physical models for the atmosphere that incorporate the micro-scale intera
 ctions within it\, and new theories about how fluctuations develop in the 
 special way that they do in turbulence.\n\nBiography: Professor Bewley stu
 dies turbulence and its effects on the environment and engineered devices 
 by performing laboratory and field experiments. Bewley developed interests
  in superfluid turbulence while earning his PhD from Yale University\, and
  in turbulent atmospheric clouds while working at the Max Planck Institute
  for Dynamics and Self-Organization in Germany. At Cornell\, he is pursuin
 g new opportunities in discovering the way turbulence behaves differently 
 at high speeds than at low ones\, and in the way we can engineer strategie
 s to navigate turbulent flows while in flight.
LOCATION:MED 0 1418 https://plan.epfl.ch/?room==MED%200%201418 https://epf
 l.zoom.us/j/65387864766
STATUS:CONFIRMED
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