Pattern formation in particle laden viscous fluid thin film flow

Condensed Matter lunchtime seminar

Pattern formation in particle laden viscous fluid thin film flow

  • Event time: 1:00pm
  • Event date: 31st January 2005
  • Speaker: Mark Buchanan (University of Oslo)
  • Location: Room 2511,

Event details

Spectacular pattern formation is observed when honey or yogurt is drained over a surface. Similar patterns can be reproduced when a particle laden viscous fluid is drained over a surface. Initially, a surface is coated with a viscous fluid film (glycerol/water mixture) containing fine particle grains (quartz powder) and then placed in a vertical position. Over time distinctive patterns can be observed to form on the surface during the fluid drainage process. The patterns can be classified into several types which depend on various parameters: density of particles, size of particles and fluid viscosity.

This is a weekly series of informal talks given primarily by members of the soft condensed matter and statistical mechanics groups, but is also open to members of other groups and external visitors. The aim of the series is to promote discussion and learning of various topics at a level suitable to the broad background of the group. Everyone is welcome to attend..

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