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SUMMARY:The Behaviour of Inertial Particles in a Turbulent\, Variable Temp
 erature Flow &gt\; - James J Riley\, PACCAR Professor of Engineering\, Uni
 versity of Washington
DTSTART:20081204T141500Z
DTEND:20081204T160000Z
UID:TALK14474@talks.cam.ac.uk
CONTACT:8442
DESCRIPTION:We have conducted direct numerical simulations and theoretical
  analysis to study the behaviour of inertial particle dispersion and tempe
 rature statistics in stationary\, isotropic turbulence subject to a unifor
 m temperature gradient.  The analysis for both particle dispersion and par
 ticle temperature statistics follows from the classical theory of Taylor (
 PLMS\, 1921).  From this theory\, as with particle dispersion\, both the s
 hort and long time behaviour of the mean and fluctuating particle temperat
 ure can be cast in simple analytical form.  Surprisingly\, it is found tha
 t the long-time behaviour of the particle temperature does not depend expl
 icitly on the particle Stokes number.  The results from the direct numeric
 al simulations are consistent with this prediction.
LOCATION:Lecture Room 6\, Engineering Department
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