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SUMMARY:Rheology of Viscoelastic Suspensions of Rigid Spheres - Prof Pier 
 Luca Meffettone
DTSTART:20061124T141500Z
DTEND:20061124T151500Z
UID:TALK5751@talks.cam.ac.uk
CONTACT:Dr Kalin Dragnevski
DESCRIPTION:Suspensions of particles in liquids are a class of materials r
 elevant in a variety of applications. A variegate spectrum of rheological 
 properties is observed depending on concentration of particles\, their mec
 hanical properties\, shape\, and size\, and on the rheology of the suspend
 ing liquid. In this work we consider a suspension of buoyancy free\, inert
 ialess\, rigid\, nonBrownian spherical inclusions in viscoelastic liquids.
  Several rheological predictions are analytically derived through a pertur
 bative approach with the Deborah number\, De\, as the perturbation paramet
 er. These predictions are confirmed by 3D numerical simulations\, which al
 so describe situations at higher De-values. Good agreement is found with a
  variety of experimental data found in the literature.\n
LOCATION:IRC in Superconductivity Seminar Room\, Cavendish Laboratory
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