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SUMMARY:Large-eddy modeling for particle-laden flow: turbulence modulation
  and intensified heat transfer - Prof. Bernard Geurts. University of Twent
 e
DTSTART:20170519T120000Z
DTEND:20170519T130000Z
UID:TALK72176@talks.cam.ac.uk
CONTACT:Garazi Gomez-de-Segura
DESCRIPTION:Turbulent flow arises in a wide variety of natural and technol
 ogical situations. While the full richness of turbulence is appreciated qu
 alitatively\, a quantitatively accurate prediction is often outside the sc
 ope of direct numerical computations. As an alternative\, filtered flow de
 scriptions\, such as large-eddy simulation (LES)\, have been proposed and 
 studied intensively\, promising a combination of accuracy and computationa
 l feasibility. While LES is effective in reducing the dynamic complexity o
 f a simulation\, accuracy limitations are a matter of ongoing discussion. 
 In this presentation\, turbulent flow with embedded point-particles will b
 e reviewed\, paying attention to the coupling of the discrete particle pha
 se with the continuous flow model. Effects of phase transition will be inc
 luded and contributions to the effectiveness of heat transfer will be quan
 tified. Particular attention will be given to flows at high Reynolds numbe
 rs for which next to explicit sub-filter modeling of the flow also stochas
 tic forcing of the particle motion will be included.
LOCATION:JDB Seminar Room\, CUED
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