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SUMMARY:Biomimetic techniques for flow control - Prof. Alfredo Pinelli\, C
 ity University\, London
DTSTART:20131129T130000Z
DTEND:20131129T140000Z
UID:TALK48508@talks.cam.ac.uk
CONTACT:Dr Henry Burridge
DESCRIPTION:During the talk two different techniques inspired by nature an
 d aimed to flow control will be presented. The first one\, motivated by th
 e undulated shape of humpback whales flippers \, concerns the control of t
 he stall of an high angle of attack wing. It will be shown\, via numerical
  results obtained by a Large Eddy Simulation\, that strongly improved aero
 dynamic performances of a wing are obtained at in an otherwise stalled con
 dition when proper undulations are introduced. A deeper physical insight o
 n the flow modification will also be presented. The second set of control 
 techniques is based on the use of elastic filaments in the trailing zone o
 f bluff bodies. The idea of using fluid structure interaction for flow con
 trol arises from the observation on the way birds use feathers in landing 
 situations. Some examples will be introduced together with a discussion of
  the potential use of flexible hairs also for the control of viscous drag 
 in wall bounded turbulent flows inspired by the fur of seals.
LOCATION:LR3B\, Inglis Building\, CUED.
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