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SUMMARY:Discovering new features in supersonic wind tunnels: Stories from 
 collaboration with CFD - Kshitij Sabnis (University of Cambridge)
DTSTART:20191122T130000Z
DTEND:20191122T140000Z
UID:TALK132388@talks.cam.ac.uk
CONTACT:Connor O'Pray
DESCRIPTION:Fluid dynamics researchers today often aspire to use CFD and e
 xperiments in combination to better understand flow physics. However\, it 
 is relatively unusual for the physical experiments and simulations to be d
 esigned and conducted simultaneously. I will be talking about a recent stu
 dy to validate numerical codes in the corner regions of supersonic channel
  flows\, where a specific emphasis was placed on close experimental-comput
 ational collaboration. I will give examples of how this close communicatio
 n between the two approaches enabled the discovery of new features in the 
 flow of a supersonic wind tunnel\, which has produced more than sixty year
 s of high-quality research. These features include a somewhat unexpected s
 hape of the tunnel boundary layers\, which can have a profound influence o
 n wind tunnel experiments\, as well as streamwise vortices induced by the 
 nozzle geometry.
LOCATION:LR5\, Baker Building\, CUED.
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