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SUMMARY:Mud wrestling: modelling shear-thinning and thixotropic fluid flow
  - David Pritchard (Strathclyde)
DTSTART:20131021T120000Z
DTEND:20131021T130000Z
UID:TALK47884@talks.cam.ac.uk
CONTACT:Doris Allen
DESCRIPTION:Several common geophysical fluids\, most notably mud\, have a 
 complex microstructure that gives them non-Newtonian properties including 
 shear-thinning and thixotropy. It is not easy to pin down this behaviour e
 xperimentally\, and it is often necessary in applications to employ simple
  rheological models in the hope that they capture the correct qualitative 
 behaviour.\n\nTo explore the properties of such models\, it is useful to i
 nvestigate simple but revealing "benchmark" flow problems. I will discuss 
 some of these\, including non-Newtonian versions of the famous Stokes and 
 Rayleigh problems. I will then describe ongoing work on shallow and slowly
 -varying non-Newtonian flow\, along with possible extensions and applicati
 ons to geological and environmental processes.
LOCATION:MR5\, Centre for Mathematical Sciences
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