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SUMMARY:Internal Student talks - see abstracts - BPI students
DTSTART:20160211T113000Z
DTEND:20160211T123000Z
UID:TALK63449@talks.cam.ac.uk
CONTACT:Catherine Pearson
DESCRIPTION:Zekang Cheng - Finite element method for multiphase flow with 
 thermocapillarity\n\nTim Beeson-Jones - Minimising Viscous Fingering Using
  Variational Calculus\n\n\n\n\n\nWhen oil is displaced by water in a Hele-
 Shaw cell or porous medium\, it is well known that the interface is unstab
 le if the water is less viscous than the oil. Polymers may be added to the
  displacing fluid to reduce these adverse viscosity gradients. We show how
  gelling introduces a time dependency to the most unstable Saffman-Taylor 
 wavelength in a rectilinear geometry\, and how this in turn permits the ca
 lculation of an optimal flow rate to minimise the largest amplitude in the
  system. Dias & Miranda (2012) showed how to apply the Euler-Lagrange equa
 tion to a non-gelling axisymmetric flow. We also explore their findings an
 d resolve an apparent disparity with other prior work.
LOCATION:Open Plan Area\, BP Institute\, Madingley Rise CB3 0EZ
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