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Ladle stirring

  Ladle stirring - Questions     4 of 4
 

Question

Given the following data, show that a simplified form of Stokes' law that relates the upward velocity of an inclusion to its diameter may be given by u = 384,180 d2.

  • density of liquid steel at 1600C ~ 7000 kg m-3
  • density of inclusions at 1600C ~ 2700 kg m-3
  • viscosity of liquid steel at 1600C ~ 6.1 10-3 N s m-2.
If a ladle containing liquid steel to a depth of 3 m is allowed to stand for 2 hours, what is the theoretical maximum inclusion size?
 

 
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