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SUMMARY:Simulation of Turbulent Combustion - Professor Kendall Bushe\, Uni
 versity of British Columbia\, Canada
DTSTART:20131108T110000Z
DTEND:20131108T120000Z
UID:TALK48271@talks.cam.ac.uk
CONTACT:Simone Hochgreb
DESCRIPTION:\nModern energy conversion devices such as gas turbines/jet en
 gines\, internal combustion engines for cars\, trucks and district energy 
 systems have evolved over many decades.  Their performance must be improve
 d further to meet future needs\, particularly with respect to fuel efficie
 ncy and pollutant emissions\, and there are clear opportunities to improve
  existing designs.  To realize these\, the fundamental transport and combu
 stion processes need to be carefully taken into account in the design proc
 ess\, which necessitates detailed numerical simulation.\nThe challenges of
  simulating turbulent combustion processes are many.  Simulating turbulenc
 e is itself particularly difficult because turbulent flows exhibit a vast 
 range of length- and time-scales that either need to be resolved on one's 
 computational grid or modeled in some way.  Adding the complexity of chemi
 cal reactions to the system adds many more time-scales and this can make t
 he problem almost intractable.  This talk will describe the problem in bri
 ef\, then discuss some solutions\, starting with addressing first the need
  for improved chemical kinetic mechanisms\, then the need to reduce their 
 complexity to make them compatible with simulations of turbulent flows.  F
 inally\, the need to account for the complex interactions between turbulen
 ce and chemical reaction will be discussed and results of simulations will
  be compared to experimental data.\n\nShort bio:\n\nW. Kendal Bushe gradua
 ted in Mechanical Engineering from the University of Alberta in 1992.  He 
 went to Cambridge University to obtain his PhD in 1996\, then took a post-
 doctoral research fellowship with the Center for Turbulence Research at St
 anford University and NASA's Ames Research Center.  He has been a Professo
 r at the University of British Columbia since 1999 where he has been worki
 ng on clean energy-related research\, including in engines and gas-turbine
 s.  His work primarily focuses on the numerical simulation of turbulent re
 acting flows.\n\n\n
LOCATION:Hopkinson Meeting Room\, Engineering Department
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