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SUMMARY:MechE Colloquium: Systems analysis of wall turbulence: Characteriz
 ing self-sustaining processes
DTSTART:20181016T121500
DTEND:20181016T131500
DTSTAMP:20260429T175938Z
UID:49d7ae1eeb87cbfd743cb92ddad29b4f7de230775ef3430523d1133b
CATEGORIES:Conferences - Seminars
DESCRIPTION:Prof. Beverley J. McKeon\, McKeon Group\, California Institute
  of Technology\nAbstract:\nThe financial and environmental cost of turbule
 nce is staggering: manage to quell turbulence in the thin boundary layers 
 on the surface of a commercial airliner and you could almost halve the tot
 al aerodynamic drag\, dramatically cutting fuel burn\, emissions and cost 
 of operation. Yet systems-level tools to model scale interactions or contr
 ol turbulence remain relatively under-developed. The resolvent analysis fo
 r turbulent flow proposed by McKeon & Sharma (J. Fluid Mech\, 2010) provid
 es a simple\, but rigorous\, approach by which to deconstruct the full tur
 bulence field into a linear combination of (interacting) modes. After a br
 ief review of some key results that can be obtained by analysis of the lin
 ear resolvent operator concerning the statistical and structural make-up o
 f wall turbulence\, I will describe some of our recent progress towards de
 termining how to reconstruct self-sustaining turbulent systems\, both natu
 ral and synthetic. Implications for both the classical picture of wall tur
 bulence and control of turbulent flows will be discussed.\n\nBio:\nBeverle
 y McKeon is Theodore von Karman Professor of Aeronautics at the Graduate A
 erospace Laboratories at Caltech (GALCIT). Her research interests include 
 interdisciplinary approaches to manipulation of boundary layer flows using
  morphing surfaces\, fundamental investigations of wall turbulence at high
  Reynolds number\, the development of resolvent analysis for modeling turb
 ulent flows\, and assimilation of experimental data for efficient low-orde
 r flow modeling. She was the recipient of a Vannevar Bush Faculty Fellowsh
 ip from the DoD in 2017\, the Presidential Early Career Award (PECASE) in 
 2009 and an NSF CAREER Award in 2008\, and is an APS Fellow and AIAA Assoc
 iate Fellow. She is the past editor-in-chief of Experimental Thermal and F
 luid Science and currently serves as an associate editor of Physical Revie
 w Fluids\, and on the editorial boards of the AIAA J.\, Annual Review of F
 luid Mechanics and Experiments in Fluids. She is the APS representative an
 d Vice Chair Elect of the US National Committee on Theoretical and Applied
  Mechanics.
LOCATION:MED 0 1418 https://plan.epfl.ch/?room==MED%200%201418
STATUS:CONFIRMED
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