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SUMMARY:A Stefan-Graetz problem in the kitchen: cleaning by convective dis
 solution - Ian Wilson (University of Cambridge)
DTSTART:20260212T113000Z
DTEND:20260212T123000Z
UID:TALK242872@talks.cam.ac.uk
CONTACT:Catherine Pearson
DESCRIPTION:One method of removing layers of unwanted material from a surf
 ace is to contact it with a solvent in which it will dissolve. The rate of
  dissolution is enhanced when the solvent is flowing\, which is why dishwa
 shers spray liquid around to both contact soiled plates with the aqueous c
 leaning solution and  to generate falling films over the surfaces. [This 
 is also why you should stack the dirty dishes properly!] In many cases a c
 leaning front develops\, between soil-free and soiled regions. Modelling t
 he front dynamics - a Stefan problem - is complicated by the rate of mass 
 transfer being spatially non-linear - the Graetz problem. In this talk I w
 ill present recent experimental and numerical work on this topic\, driven 
 by an interest to improve the sustainability of cleaning-in-place of food 
 processing equipment. No food will be cleaned during this talk\, just lots
  of instant coffee.
LOCATION:Open Plan Area\, Institute for Energy and Environmental Flows\, M
 adingley Rise CB3 0EZ
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